99 - Kelvin Electronics

PRO JECT PARTS WHEELSSuper LightweightWheels SetLightweight wheels for thoseprojects, like a solar vehicle, where reduced weightand friction are important. They weigh in at 2.9 gramswithout the adapters. Fit on a 3mm axle or by usingthe adapters they can fit on a 2mm or 1/8” axle. Thisset includes [2] 2-1/2” dia. wheels along with [2]2mm adapters and [2] 1/8” adapters.990323 ............................$2.45 or $1.95 ea./10+Project Wheels KitIdealfor KELVIN ® Solar Racers andother projects. This kit includes [2]1-3/8”dia.front w heelswith a rim (you can adda rubber O-ring tire on the rim but it is notincluded and not required). In addition, [2]1-3/4”dia.back w heelswith a rim and a built-in gearwith a 2-gear ratio. The built-in gear fits a 2mm toymotor shaft and matches the big back wheels. Alsoincludes [3]axles (you can also use 1/8” axles forwheels).990199 ....$2.95 or $2.45 ea./10+ or $1.95 ea./50+390983 Tires, 4/pkg. ......................................$1.504-3/4”Diameter!Tires for Kit(not included)High Speed Wheels SetHigh speed wheels measure 1-1/8”diameter with a3/8” wide tread. Fits a 3/32” dia. axle. Comes with[4] 1” long plastic axles that can be used with foamvehicles.990211 4/pkg. ....95¢ or 75¢ ea./10+ or 65¢ ea./50+Speed Axlesfor High Speed W heelsThese axles are not nails; they are precisionmachined. Axles can be used with the High SpeedWheels above. 0.0870” OD, 0.2” dia. head, 1” long.Zinc-coated steel.391087 100/pkg. ..............$19.95 or $16.95 ea./3+CD to WheelAdapterCleverly convertsoutdated or unwanted CDs into a project wheel. Useadapter to fit a wheel or CD with a 5/8” hole ontoa 1/4” diameter axle. Can be combined with theadapter below to fit a 1/8” diameter axle.990182 A 20/pkg. ..............$2.95 or $2.45 ea./10+W heelto 1/8” Axle AdapterUse to fit a wheel with a 1/4” hole onto a 1/8” dia.axle. Can be used with adapter above.990317 B 10/pkg. ..............$2.45 or $1.95 ea./10+Copyright © Kelvin L.P.ABBig Project WheelsIdeal wheel for your mousetrap dragster or other projects. This wheelmeasures 4-3/4” dia. (same size as a CD) fits 1/4” dia. axle. Includesour 1/8” insert.990181 10/pkg. ............................................$5.95 or $4.95 ea./10+1-800-535-8469 (9AM to 5PM E.S.T.)• FAX:1-800-756-1025 OR 1-631-756-1763 www.kelvin.com • 9

WHEELS PRO JECT PARTSGreat For Robotics!Wheels for Your Model AirplanesBASpoked Wheel Rimsand Heavy-Duty TiresUse for SUMO ® or other roboticprojects. Wheel rim has 7-spoke design.Overall wheel tire and rim is 1” thick.Tires are 2-1/2” dia.990235 A Spoked Wheel Rims, 2/pkg.........$9.95282346 B Tires, 2/pkg....$19.95 or $18.95 ea./2+Rubber Spike TiresGreat looking tires are also functionalbecause turning and rolling resistanceis virtually zero. Great for climbingvehicles and robots.75x20x38mm inner391138 ..................$3.25 or $2.95 ea./10+391144 39mm Hub Wheel for #391138 ........65¢80x35x42mm inner391139 ....................$3.45 or $3.25 ea./10+Caterpillar TrackA new soft durabletrack with a transversetread; ideal for micro-rovers,robots, etc. Can be used with#391144 or #391143. Approx. 30mmx 180mm long.391140 ....................$2.75 or $2.45 ea./10+Rubber TrackUse it flat as a form ofrailway line or make yourown caterpillar track/pulleybelt for use with 75mm wheels. Joinwith superglue or heat welded.391141 27mm wide ..................$5.50 / MeterTrack Wheel391143 75mm dia. w/3mm Hole ................99¢A B C DLanding WheelsCreate your own landing gear for modelplanes or other activities. Fits thin wire(music wire). 100 wheels per package. Alldimensions in inches.Stock#Fig.MaterialDia.(in.)T(in.)E GFHPrice850935 A Wood 7/16 1/8 $9.95850934 B Wood 5/8 3/16 $9.95850933 C Wood 3/4 7/32 $14.95850931 D Plastic 3/4 1/8 $7.45850930 E Plastic 1 1/8 $7.95Dura-CollarsWill hold wheels onto axles and allowsthem to spin freely. Use for airplanes ormodel vehicles.283095 1/16” ID, 4/pkg. ........$1.95 or $1.75 ea./3+283096 3/32” ID, 4/pkg. ........$1.95 or $1.75 ea./3+283099 1/8” ID, 4/pkg. ..........$1.95 or $1.75 ea./3+283097 5/32” ID, 4/pkg. ........$1.95 or $1.75 ea./3+283100 3/16” ID, 4/pkg. ........$1.95 or $1.75 ea./3+283098 7/32” ID, 4/pkg. ........$2.25 or $1.95 ea./3+283101 1⁄4” ID, 4/pkg. ..........$2.25 or $1.95 ea./3+Treaded WheelsF 2" dia. x 3/4" thick;Fits 1/8" Axle283090 2/pkg. ......$7.95F 3" dia. x 1" thick;Fits 5/32" Axle283091 2/pkg. ......$8.45Tail WheelsG 3/4” dia. x 1/4” thick;Fits 1/16” Axle283092 ..............$2.45G 1” dia. x 3/16” thick;Fits 3/32” Axle283093 ..............$2.40G 1-1/4” dia.x 3/8” thick;Fits 3/32” Axle283094 ..............$2.95LandingWheels Set1-1/16” dia. x 5/16” thick wheels.Does not include thin wire (below).390459 J 2/pkg. ............................................75¢Thin Wire K0.032" diameter wire can be used to createlanding gear for model planes.330337 12” L, 30/pkg. ..........$6.45 or $5.95 ea./10+850932 Pre-Shaped, 50/pkg. ..$9.95 or $9.45 ea./10+Materials for Axles and BushingsDelrin RodLightweight, self-lubricating rod is idealfor model cars. Easily cuts to size for axlesand bumpers. 1/8” dia. x 24” long.750162 ..............................$2.25 or $1.95 ea./4+Steel Rods1/8” dia., 2-1/4” L390349 100/pkg. ................$3.95 or $3.75 ea./10+1/8” dia. x 2-1/2” L390361 100/pkg. ................$4.25 or $3.95 ea./10+4mm (5/32”) Axles, 6” Long - Cut to Size, Metal,990220 5/pkg. ..............................................$3.95Welding Rod 1/8” dia. x 36” long,391136 80/pkg. ..............$33.95 or $31.95 ea./10+JIWheel HalvesGlue these hollow,plastic wheel halvestogether to make afull wheel or use ashalves. Package of50 wheel halvesmake 25 full wheels.H 1” dia. x 7/16” thick;50/pkg.850929 ............$7.95I 2” dia. x 1/2” thick;50/pkg.850927 ............$9.95White Plastic Milk StrawCan be used as bushing for 1/8” dia. axles.Approximately 9/64” dia. x 5” L.330358 500/pkg. ..................$5.45 or $4.95 ea./4+Plastic StrawsThe 19/64" dia. straw can be usedas bushing for 1/4” dia. axle.Approx. 1/4” dia. x 7-3/4" L330327 500/pkg. ................$4.25 or $3.75 ea./10+Approx. 19/64” dia. x 7-3/4" L330408 150/pkg. ................$6.35 or $5.70 ea./10+Paper Art StrawApprox. 1/4” dia. x 16” L. White.330372 250/pkg. ..............$19.95 or $18.95 ea./4+KCopyright © Kelvin L.P.10 • www.kelvin.com 280 ADAM S BOULEVARD •FARM INGDALE,NY 11735 • USA

PRO JECT PARTS WHEELSDragster Wheels1-3/8” to 1-1/2” Dia.• For1/8” AxlesSAVE!aslowas9 ¢ea.A B C D EStock # Fig. Type Diam eter” Tread Width” Axle Size” End Cap? Color Qty. Price 5+ Price990168 A Front 1-3/8 3/32 1/8 No Black 100 $9.95 $8.95990169 A Front 1-3/8 3/32 1/8 No Assorted Colors 100 $10.95 $9.95990170 B Front 1-3/8 3/16 1/8 Yes Black 100 $9.95 $8.95990171 B Front 1-3/8 3/16 1/8 Yes Assorted Colors 100 $10.95 $9.95990319 C Front 1-3/8 3/16 1/8 Yes Black 100 $10.45 $9.45990166 D Rear 1-1/2 5/8 1/8 Yes Black 100 $13.95 $12.95990167 D Rear 1-1/2 5/8 1/8 Yes Assorted Colors 100 $14.95 $13.95990320 E Rear 1-1/2 5/8 1/8 Yes Black 100 $13.95 $12.95Attach Gearboxes to TheseWheels & Motorize Them!Big WheelsTurn big 3” diameter wheels into gear wheels byusing the center holes to mount gears (listed at right)with screws and nuts. Push fits 1/8” axle. Assortedcolors. 4/pkg.990176 Big Wheels................$2.95 or $2.75 ea./10+390014 Screw s6:32 x 5/8”, 100/pkg. ..............$2.50390035 Nuts6:32, 100/pkg.............................$2.35420231 Rubber Bands..................................$2.50Big and GearW heels Workwith These GearsSuper Economy Gear SetsSet of [4] different-sized gears (ranging from10- to 40-teeth) with holes to attach to each otherwith screws. Large gear measures 1-5/8” in diameter.The small gear fits 2mm motor shafts. Other gearsfit a 3mm shaft. Durable plastic.990179 Black ......95¢ or 85¢ ea./10+ or 80¢ ea./50+990174 Asstd. Colors ..............$1.45 or $1.25 ea./10+Gear WheelUse 36-tooth gear wheel in tandem with small motorgears. 1-3/4” dia. wheel is 1/2” thick and push-fitsa 1/8” diameter axle.990173 Black. 100/pkg. ......$29.95 or $24.95 ea./5+Front WheelFor use with the KELVIN ®Gear Wheel above as a frontwheel. Or, use it on its ownfor other purposes. 1-3/16”diameter wheel is 3/8” thickand push-fits a 1/8” axle.990172 100/pkg...................$19.95 or $14.95 ea./5Copyright © Kelvin L.P.1-800-535-8469 (9AM to 5PM E.S.T.)• FAX:1-800-756-1025 OR 1-631-756-1763 www.kelvin.com • 11

GEARBOXES PRO JECT PARTSPowerDriveGearboxA worm drive power gearboxin an aluminum housing poweredby a solar motor. Gearbox as viewed from rear of the motor.283217 P.D. Gearbox ..................................................................$12.25283218 Power Drive Gearbox with Left Shaft ..................................$12.25283219 Power Drive Gearbox with Right Shaft ........................................$12.25HighTorqueLinear ActuatorThis unit provides immensepulling or pushing force deliveredthrough movement of a threaded 3mm shaftpassing in either direction through the centralpinion gear. The unit is supplied complete with twobrackets that can be fixed with 4mm screws to the part(s) beingmoved. Ordinary 3mm studding can be substituted for the 150mmlength supplied with the unit.283220 ....................................................................................$13.95Linear ActuatorMotor KitThis linear actuator motorfeatures 3" of travel. Includes [2]momentary limit switches. 9V DC.280368 Kit..........................................$22.95Gearbox & M otor KitsHigh Efficiency WormGearbox and Motor KitCan produce extremely low speeds ofrotation and is used for gear reduction.Two gear ratios can be selected (216.1:1& 336.1:1). Included motor operates on3-4.5 volts.281649 ....$17.95 or $16.95 ea./3+Twin MotorGearbox KitThis ready to assemble gearbox usestwo electric motors to independentlycontrol each of the output shafts.Two gear ratios, 207:1 or 58:1 can beselected. Used for SUMO Car andother robotics projects.281650 ....$17.95 or $16.95 ea./3+UniversalGearbox and Motor KitIt’s an extremely useful device thatcan power a shaft in a horizontal orvertical position relative to the motor.Various arrangements of 24-tooth and26-tooth gears produces gear ratiosof 101:1, 269:1, 719:1.281651 ....$11.95 or $10.95 ea./3+High SpeedGearbox and Motor KitAllows 2 gear ratios, 11.6:1 and 18:1to be selected. Accepts both 140 or260 type motors. Included motoroperates on 3-4.5 volts.281661 ....$17.95 or $16.95 ea./3+4-Speed Crank AxleGearbox & Motor KitAlter the gear combinations for fourdifferent gear ratios (126:1, 441:1,1543:1, 5402:1). Higher speed settingis suitable for car model; lower speedsetting is suitable for tracked vehiclemodel and more.281652 ....$17.95 or $16.95 ea./3+Solar Gear Drive Motor27:1 Gear ratio. 2V DC nominal. Fitsa 2mm shaft.280513 ..$7.95 or $7.45 ea./10+Precision Servo MotorUse for robotics and remotecontrolledprototypes. FUTABAlightweight plane motor outputs.42-oz. of torque/inch. 4.8-6V DC.850719 ..$19.95 or $19.45 ea./4+High PowerGearbox and Motor KitDesigned for high torque output ratherthan speed with 2 gear ratios (41.7:1and 64.8:1). Suitable for constructingmodels such as tanks, buggies andtracked vehicles. Included motoroperates on 3-4.5 volts.281660 ....$17.95 or $16.95 ea./3+M orePlanetaryGearbox KitA highly versatile system for reductionof high RPM electric motors tohigh-torque low RPM applications.Combine gearboxes in various waysfor 8 different gear ratios (4:1, 5:1, 16:1,20:1, 25:1, 80:1, 100:1, 400:1).281665 ....$22.95 or $21.95 ea./3+Products at www.kelvin.comCopyright © Kelvin L.P.12 • www.kelvin.com 280 ADAM S BOULEVARD •FARM INGDALE,NY 11735 • USA

PRO JECT PARTS GEARBOXESEconomyGear Box & Inline MotorEconomy motorized gearboxes w/ mounting holes.Shaft size (oval): 13/64"x9/64". 3V DC (6V DC max.).282396 1:120, 100 RPM........$7.95 or $7.45 ea./10+282397 1:1200, 70 RPM........$7.95 or $7.45 ea./10+Heavy Duty Gear Box & MotorUse for robotic activities. Motor: 1” dia. x 2-7/8” L.Shaft: 0.15” dia. x 3/8” L. New MotorAdded!851100 100:1, 6-12V DC ..$12.95 or $10.95 ea./10+851494 15:1, 1-3V DC ......$24.95 or $22.95 ea./10+Gear Box KitsBuild a gear box for robots or where the gearreduction or gearing change is needed. The kitsinclude a pre-punched U-shaped bracket, motor,axles, gears, washers and instructions. 2.5"W x 6.75"L x 1.70" H. NOTE:Wheels not included.You must enlarge holes in the gears.Tug-ofWar Gear Box Kit SEE PAG E 75Axles connects to 2 wheels for the Tug-of War activity.It includes a long threaded rod axle for attachmentto wheels (not included). The assembly lends itselfto forward and backward motion with both wheelsbeing driven by the same gear box.283122 ..................................$19.95 or $17.95 ea./10+SUM O Wrestler ® Gear Box Kit SEE PAG E 75Connects to one wheel for SUMO Wrestler ® vehicle.Ideal where many directional changes will to bemade. The box includes a screw and nut axle thatconnects to the wheel (sold separately). Two gearboxes are required to transmit power to each wheel.282360 ........................$18.95 or $16.95 ea./10+SAVE!Large Gear BoxLarger gear is easier to mash. Use with solar cellproject designs or battery car models. 6-12V DC. Hasa 3mm diameter shaft.841219 ............................$3.95 or $3.45 ea./10+Reduction Unit Kit50:1 reduction unit. Includes 6V DC motor and anaxle. Shaft is 5/32” in diameter.280367 Kit..........................$5.95 or $5.45 ea./10+Motor & Gearbox KitEight different transmission ratios, from 5:1 up to1125:1. Kit includes an RC20 motor (that runs on1.5-4.5V DC) and instructions. The output shaft is3mm in diameter.280411 Kit ......................$12.95 or $11.95 ea./3+Swing Friction Gear MotorDesign and build a dragster with power from gearsand a swing friction motor. Attach wheels and watchthe dragster go!280413 ............................$4.45 or $3.95 ea./10+Copyright © Kelvin L.P.Gearbox Motorwith Clear CoverClear cover lets you see how the gears work, calculategear ratios, etc. Fitted with adjustable gears. 6-12VDC. Shaft is 0.15” dia. x 3/8” L. The motor dimensionsare 1” dia. x 2-7/8” L.850716 Gearbox ..............$22.95 or $21.95 ea./3+Clunk-ClickGearbox KitThis gearbox system is easy to assemble and takeapart. Comes with motor holder and gears. Ideal fortransportation projects. 1-6V DC, 0.1-1.0 A (loaddependent). 2mm dia. shaft.281739 ............................$5.95 or $5.45 ea./10+Universal GearboxExpand this universal gearbox by adding gears upto 6 gear ratios. It has metal side plate. Output shaftis 4mm diameter. 1.5–4.5 VDC.281740 ..............................$9.95 or $9.45 ea./3+2-in-1GearboxThis set includes amotor, two sets ofgears, metal shafts,gearbox, and otheraccessories in thiskit. Use a differentgear setting and you will have a different speed.282394 Kit ..........................$9.95 or $9.45 ea./3+1-800-535-8469 (9AM to 5PM E.S.T.)• FAX:1-800-756-1025 OR 1-631-756-1763 www.kelvin.com • 13

PRO JECT PARTS GEARSADeluxe Gear Set ★★For power transmission. Small gear andworm gears fit a toy motor. Includes:• [4] 10-ToothGears• [4] 20-ToothGears• [4] 30-ToothGears• [4] 40-ToothGears• [4] 50-ToothGears• [2] 1/4” Dia. Rack& Pinion Gears; 8turns/in.Copyright © Kelvin L.P.• [2] Racks: 8-teethper inch, 2” long• [2] 1/2" Dia. Rack& Pinion Gears;8 turns/in.• [2] Axles: 2”Long x 1/8” dia.• [2] Axles: 2-3/4”Long x 1/8” dia.• [2] Axles: 3-3/4”Long x 1/8” dia.• [2] Axles: 4-3/4”Long x 1/8” dia.750112 Set ......................$36.95 or $34.95 ea./3+Chain Driveand Sprocket KitStudents assemble the sprockets and chainand make a positive direct drivenmechanism system. Includes a chain kit,10-tooth, 20-tooth, and 30-tooth gears,grub screws and Allen key. Internaldiameter of gears is 4mm. The chain isapproximately 31” long.750189 Chain Drive and Sprocket Kit ..............$19.95750191 Chain Drive Kit ..................................$9.45Additional Sprockets (1 each of: 10-, 20-, 30-tooth)750190 ......................................................$9.45PLEASE NOTE:All * gears work with each other.All ** gears work with each other.Gear and MotorMounting BracketSpecially designed to be used with theKELVIN® Super Economy Gear Set(#990179 or #990174) and KELVIN ® 3-6VDC motor part (#850647). NOTE: Wheels,Gears, Battery and Motor or Complete Kitare available separately. Mountinghardware for motor, bracket and gears islisted below. 5/pkg.990204 ....$9.95 or $8.95 ea./10+ or $7.95 ea./25+To Attach Motors and Gears To TheBracket, Use The Following:390026 #6x3/8” Screw for Gears, 100/pkg. ........$2.40390931 #4x1/4” Screw for Motors, 100/pkg. ......$2.45#4:40x1/2” Screw for Motors390007 100/pkg. ..................$4.95 or $4.45 ea./3+#4 Nylon Lock Nut for Motors390944 100/pkg. ..................$4.95 or $4.75 ea./3+Gear and Pulley Combo ★★10-tooth gear with built-in pulley. Will fita 2mm shaft.390585 20/pkg. ....................$3.95 or $3.45 ea./3+Small Motor PinionGears10-Tooth gears. 10/pkg.Fits a 2mm diameter shaft.390623 ..............$1.95Small Motor Pinion GearsAdapters/ReducersPlace in gear to fita toy motor shaft.1/8” (3mm) to 2mm Shaft390632 10/pkg. ............................................$1.453/16” (4mm) to 2mm Shaft390629 10/pkg. ............................................$1.45Double Molded Gears ★Two gears molded together. Fits 1/8" or3mm dia. shaft, sprocket chain and mostgears listed on these two pages.30-tooth (5/8” dia.) / 10-tooth (1/4” dia.)390624 A Gears, 10/pkg. ..............................$1.9550-tooth (1” dia.) / 10-tooth (1/4” dia.)390620 B Gears, 10/pkg. ..............................$1.951-800-535-8469 (9AM to 5PM E.S.T.)• FAX:1-800-756-1025 OR 1-631-756-1763 www.kelvin.com • 15BCams SetA set of four cams:one eccentric, oneregular and two sizesof pear cams.391189 ................$3.95Cams Class Pack[20] eccentric, [20] regular and [40] pearshapedcams. 3mm hole fits 3mm dowels.390423 80 Cams Total..................................$34.95Crank HandleUse this crank handleto turn pulleys, gears,etc. Fits 3/16” dia. shaft.390610 30/pkg. ................$19.95 or $18.95 ea./3+MORE FROM KELVIN ®Simple Machines LabSimple experiments using gears,pulleys, wheels, levers, inclinedplanes and wedges.

MOTORS PRO JECT PARTSThe BEST MotorPrices, The BESTMotor Selections!MotorsASLOWEFGAHB C DIJKLMotorsStock#Fig.VoltageRangeNom inalVoltageCurrent(Am ps)RPM(Max.)Torque(g/cm )Term inalTypeShaft Dia.(mm)ShaftLength(mm)Size(DxL mm)Price10+Price100+PriceAS59 ¢ ea. Stock851105 A 0.7-5.0 2 0.018 2,200 2.8 125mm Wires 2 6 25 x 13.5 $2.95 $2.75 $2.45851255 B 1.0-6.0 6 0.041 10,500 4.3 Solder 1.5 4 15.5 x 24.1 $2.45 $2.25 $1.95851256 C 1.5-3.0 2.4 0.096 15,800 2.7 Solder 1 3.6 12 x 15 $2.95 $2.75 $2.45851257 D 0.9-1.6 1.5 0.1 6,500 — Solder Vibrator — 10 x 12.4 $3.45 $3.25 $2.95851258 E 3.6-6.0 4.5 0.029 28,580 9.4 30mm Wires 1 2.8 10 x 12.4 $3.45 $3.25 $2.95851259 F 1.0-2.4 1.5 0.056 21,300 6.4 30mm Wires 1 4.2 7 x 16.6 $2.95 $2.75 $2.45851165 G 1.5-6.0 6 — 12,000 — Solder 1.5 3.5 18 x 10 x 19 $1.15 89¢ 79¢850646 H 1.2-3.0 1.5 0.34 10,200 6.81 Solder 2 8.1 20 x 25 85¢ 79¢ 59¢851254 H 1.0-1.5 1.5 0.7 14,400 12.4 Solder 2 8.1 20 x 25 $2.45 $2.25 $1.95851230 I 1.5-3.0 — — 11,000 — 125mm Wires 2 8.5 23.5 x 27 $1.25 $1.15 89¢850647 J 3.0-6.0 6 0.26 17,000 20.72 Solder 2 6.5 23.5 x 27 85¢ 79¢ 69¢850887 K 6.0-12.0 12 0.14 12,500 44.2 Solder 2 10 24 x 32 $1.75 $1.50 $1.35850941 L 6.0-12.0 12 0.7 16,200 236.5 Solder 3 8.5 35.7 x 71.5 $7.95 $7.25 $6.95850962 L 12.0-30.0 30 1.31 12,800 238.4 Solder 3 8.5 35.7 x 71.5 $9.95 $8.95 $8.45Motor/Syringe MountsMotors and syringes not included.A#Fig.Fits M otorSize (mm)Fits SyringeSize /TypeSize(I.D.)Qty.Price10+PriceB282424 A 6cc Straight 1/2” 1 75¢ 49¢390968 A 23.5 x 27 20cc Straight, 30cc Luer, 35cc Straight 7/8” 1 75¢ 49¢C390963 B 10cc Straight 11/16” 1 75¢ 49¢390967 B 23.5 x 27 , 24 x 32 30cc Luer 15/16” 1 75¢ 49¢E390962 B 60cc Straight, 60cc Luer 1” 1 $1.25 99¢390726 C 23.5 x 27 , 24 x 32 35cc Straight 1-1/16” 10 $1.25 99¢390727 — — 1-13/16” 2 79¢ 69¢DF390588 — 20 x 25 10cc Straight, 6cc Luer, 35cc Straight 11/16” 10 $5.95 $5.65390572 D 23.5 x 27 20cc Straight 13/16” 10 $5.95 $5.65Copyright © Kelvin L.P.16 • www.kelvin.com 280 ADAM S BOULEVARD •FARM INGDALE,NY 11735 • USA

PRO JECT PARTS MOTORSProjectParts AssortmentsAn ECONOMICAL variety of partsyou need for your project.841586 ..$9.95 or $8.95 ea./6+Mechanicaland Prototype PackA variety of parts you need foryour technology and mechanicaldesign center. BONUS!!Storage Cabinet!841328 .................... $ 359Pictures for Illustration Only8 Propellers8 Gears8 Cams8 Pulley Packs100 Front Wheels w/ End Cap100 Front Wheels w/ Ctr. Hole200 Dragster Wheels, Rear20 Mouse Trap Wheels40 CD Wheel Adapters100 Gear Wheels100 Front Gear Wheels100 2-1/4"” Axles100 2-1/2” Axles100 Economy Gears80 Economy Cams1 Sprocket Chain10 Worm Gears10 Bevel Gears10 Rack Gears100 Economy Pulleys20 Economy Motors20 Hi-Speed Motors24 Hi-Performance Motors24 Hi-Speed Propellers10 1" Boat Propellers20 Motor Holders30 Crank Handles100 Spring Assortment2 Motor/Gear Box Kits1 BONUS: Storage CartProject MotorsFour kinds of motors -ten motors total.841585, $9.95or $8.95 ea./6+Motor Speed Control KitThis speed controller kit use Pulse-WidthModulation (PWM) to vary the speed ofa DC motor from 0 to 100%. It can beused for any DC motors from 3 to 25 Voltwith a 3 Amp maximum current draw.Ideal to control the speed of a fan, toymotor, model train and so on.841732 ..................................................................$15.95 or $14.95 ea./10+Mechanical Wind-Up MotorAn alternative to battery-powered motors.Will easily drive a mechanical toy, car or boat!Includes a key. The spindle diameter is 2mm.281907 ....................$3.75 or $3.65 ea./3+260 Motor1.5 to 3V DC, 120mA, 6,500 RPM, 51G-CM,23x31mm. Shaft length is 6mm and the shaftdiameter is 2mm. FE-260-18130.851342 ..............................$1.65 or $1.40 ea./10+280 Motor1.5 to 3V DC, 200mA, 8,200 RPM, 142G-CM. Theoverall motor size is 23x34mm. Shaft length is 10mmand shaft diameter is 2mm. FE-280-2865.851343 ..............................$1.65 or $1.40 ea./10+370 Motor12VDC, 16mA, 3500 RPM, 119G-CM. Add a propellerand place in front of a fan to make a great generator.Can light an LED. The overall motor size is 24x33mm.Shaft length is 9mm and the shaft diameter is 2mm.851360 ............................$3.45 or $2.95 ea./10+1 Basic Solar Motor (2,200 rpm)4 Adv. Solar Motors (10,200 rpm)4 High Speed Motors (17,000 rpm)8 SUMO Motor (12,500 rpm)Motors for JuniorSolar Sprint CompetitionsCopyright © Kelvin L.P.1-800-535-8469 (9AM to 5PM E.S.T.)• FAX:1-800-756-1025 OR 1-631-756-1763 www.kelvin.com • 17

PROPELLERS PRO JECT PARTSBoat PropellerRubber Band attachmentbelow boat. With hook.Ideal for balsa orfoam kits.851461, $1.95or $1.75 ea./10+or $1.45 ea./25+Motor Propulsion Kit1-in. propeller, motor, shaft and mounting bracket.280412 ..............................$5.95 or $5.45 ea./6+Plastic Propellers Push-fits 2mm Diameter Shaft,851314 3” Dia., 8/pkg. ....$5.95 or $5.75 ea./5+ or $5.45 ea./10+ or $5.25 ea./25+ or $4.95 ea./50+Low Torque, High Speed PropellerThis propeller provides greater airflow for use with hovercrafts and light model planes.9cm long x 1cm wide (3.5” x 0.393”). Fits tightly 2mm diameter shafts.990332 3.5” Dia., 5/pkg. ....................................................................................$4.95Red Plastic Propellers Push-fits 3/64” Diameter Shaft850632 5” Dia. ....45¢ ea./5+ or 40¢ ea./10+ or 35¢ ea./25+ or 32¢ ea./50+850889 6” Dia. ....75¢ ea./5+ or 70¢ ea./10+ or 65¢ ea./25+ or 63¢ ea./50+850890 7" Dia. ....85¢ ea./5+ or 80¢ ea./10+ or 75¢ ea./25+ or 70¢ ea./50+Indoor Flight PropellerAdjustable pitch for indoor flights. 150 mm (5.9”) diameter,light construction (1.1 gm). Includes bearing and hook.990337 6.9” Dia. ..............................$8.95 or $8.45 ea./10+Rigid Black Plastic Propellers990334 6” Dia.........$2.95 or $2.75 ea./5+ or $2.45 ea./10+990335 7" Dia. ......$3.95 or $3.75 ea./5+ or $3.45 ea./10+Adjustable PitchPropeller851458 7” Dia. 4/pkg...............$5.95or $5.55 ea./10+ or $5.45 ea./25+Propeller9” Dia.Push-fits 3/64”,850926,95¢ ea./5+ or90¢ ea./10+ or85¢ ea./25+or80¢ ea./50+Super-Sized 9.8”Diameter PropellerRubber Band PropellerPropeller freewheels when Rubber Band power runs out. Includes a rubber band hook. 1/2"diameter mounting hole to attach to the fuselage. Requires a rubber band and winder.851108 9.8” Dia.......$5.95 or $5.45 ea./5+ or $5.25 ea./10+ or $5.15 ea./25+ or $5.05 ea./50+Copyright © Kelvin L.P.18 • www.kelvin.com 280 ADAM S BOULEVARD •FARM INGDALE,NY 11735 • USA

PRO JECT PARTS PROPELLERSPropellers for Your Planes, Boats,Cars and Other ExperimentsADEGBCFStock#Fig.Dia.(Inch)AxleDia.Qty.PriceEach5+Price10+Price25+Price50+Price851102 A 1 2mm 1 $1.35 $1.25 $1.05 99¢ 95¢850651 B 1-1/4 3mm 1 $1.65 $1.35 $1.25 $1.05 99¢851166 B 1-3/4 3mm 1 $1.45 $1.35 $1.25 $1.20 $1.15990324 C 2-1/4 2mm 1 $1.95 $1.85 $1.75 $1.65 $1.55Stock#Fig.Dia.(Inch)AxleDia.Qty.PriceEach5+Price10+Price25+Price50+Price990175 D 3 2mm 8 $5.95 $5.75 $5.45 $5.25 $4.95851315 E 3 2mm 8 $5.95 $5.75 $5.45 $5.25 $4.95851459 F 3 2mm 4 $4.95 $4.85 $4.75 $4.45 $4.35850891 G 4-1/2 2mm 1 $2.25 $2.15 $1.95 $1.89 $1.85ABCSafety PropellersThe propellers force fits onto any small electric motor but has the advantageof a safety ring preventing contact with spinning blade tips. Black propellerpush-fits 2mm shaft. 125mm (4.92”) dia.990338 10/pkg. ..............................................................$9.95 or $9.45 ea./5+Nose Hook PropellersStock#Fig.Dia.(Inch)Fits BassW ood (Inch)PriceQty.Each5+Price10+Price25+Price50+Price851219 A 5 0.21 x 0.45 1 — 45¢ 43¢ 40¢ 36¢850654 B 6 0.135 x 0.35 1 — 49¢ 45¢ 42¢ 39¢851460 C 7 0.15 x 0.23 4 $4.95 $4.85 $4.75 $4.45 $4.35Wind GeneratorPropeller Set5-part propeller-Set, white,210 mm (8.26”) diameter with 2 mm hole.No tools necessary!990336 ......................$9.95 or $9.45 ea./3+Copyright © Kelvin L.P.1-800-535-8469 (9AM to 5PM E.S.T.)• FAX:1-800-756-1025 OR 1-631-756-1763 www.kelvin.com • 19

CONTROL PARTS PRO JECT PARTSControl Parts for Your Model Plane,Model Car, Robot, SUMO ® Car or InventionL-ControlBracket1” with 1/8” hole. Forattaching cables andcontrol. 6/pkg.281869…$3.75 or $3.60 ea./3+Bell Crank KitIncludes [2] nylon bellcranks, [2 ]brass bushings,[2] nuts, bolts and washers.2/pkg.281868…$1.75 or $1.65 ea./3+T-Style Control HornsIdeal for use as ailerons,elevators, and rudder.Includes screws. Nylon,1”long. 2/pkg.281866…$1.45 or $1.25 ea./3+Flexible CableHeavy duty cable and sleeve for modelplanes. Includes metal Kwik connect, plasticconnect and coupling screw. 20" long.281876 ..............................$2.95 or $2.75 ea./4+Landing Gear ClampsUse 1/8” clamps to keepcables attached to projectbody. 4/pkg.281867…$2.15 or $1.95 ea./3+ServoArms AttachmentsRegular Size281870…$10.95 or $9.95 ea./3+Longer Size281880...$11.95 or $10.95 ea./3+Plastic Rivets4mm diameter rivet andlocking ring for easy joiningof roll tubes. Approx. 75rivets and rings.391142…$3.25 or $2.95 ea./3+Flexible Control CableExtra long 48” Nylon cable (Type 2-56 size)includes inside tubes, outside tube,connectors and screws (2 sets).281878 ..............................$7.95 or $7.65 ea./4+Extra Flexible Control CableUse as cable for: rudder, elevator, flaps,tail wheels, throttle, nose gear retract,powerboat rudder, outboard steering, ora sail. 2-56 size, 32 multi-strand. 36” long.281879 ..........................$11.95 or $10.95 ea./4+E-Z Connectors283106 ......$2.15 or $1.95 ea./3+Steering ArmAssembly1-1/4” Nylon assembly for5/32” nose gear wire.283105 ......$2.95 or $2.75 ea./3+Nylon HingesHinge pin locked in place.7/16” W x 1-1/16” L. 6/pkg.283102 ......$2.45 or $2.25 ea./3+Push Pull WiresFlexible and solid rod for use with controls,horns, bell crank and mini push pull rod(20” long), nylon connectors (mini kwiklink), screws, couplers and nylon sleeves.281874 2/pkg. ......................$3.45 or $3.25 ea./4+Pull-PullCable SystemSystem Includes: 15 feet ofmetal coated nylon cable ,[4] kwik link connectors andkeepers, [4] hex nuts, [4]couplers, [4] crimps and 4”heat shrink.281875 ....$9.95 or $9.45 ea./3+Turntable BaseMake a turntable, storagecaddy, and much more!390715 3” dia. base ............$2.95Threaded Rod3/8” dia. x 2 ft. long390864 ...$4.45 or $3.95 ea./10+Threaded Base PlateFits 3/8” dia. rod (above).390958 ...$2.25 or $1.95 ea./10+Cut To Size Project PartsItems that are useful for your projectswhen you need matching screw shaft andnut to hold it together. Screw thread withextra long shaft, 2:56x12” long, can be cutto size. Brass ty\ube is 12” long, cut to size.390672 Screw Thread ............$1.95 or $1.85 ea./10+390763 Brass Tube ..............$1.35 or $1.20 ea./10+390049 Nuts, 2:56 x 3/16” – 100/pkg. ..............$2.25Copyright © Kelvin L.P.20 • www.kelvin.com 280 ADAM S BOULEVARD •FARM INGDALE,NY 11735 • USA

PRO JECT PARTS ODDS ‘N’ ENDSA B CDEFGHIJBCDBallsAStock#Fig.BallTypeColor Dia. Qty. Price870048 A Steel Silver 3 mm 100 $14.95870049 A Steel Silver 6 mm 50 $9.95870050 A Steel Silver 11 mm 10 $3.35870041 B Wood Natural 19mm 10 $2.95870042 C Acrylic Clear 1/4 in. 50 $4.95870043 D Acrylic Clear 3/8 in. 30 $4.95870044 E Acrylic Clear 1/2 in. 20 $4.95870045 F Acrylic Clear 5/8 in. 15 $4.95870046 G Acrylic Clear 3/4 in. 10 $13.95870047 H Acrylic Clear 1 in. 5 $13.95870036 I Ping Pong White 38 mm 6 $2.10870039 JRubberbandsStock #Width(Inches)Golf Practice(Light, hollow)Length(Inches)White 43 mm 12 $4.95# Qty. Price420231 1/8 3 #32 1/4 lb. $2.50420230 1/8 3 #32 1 lb. $4.95850658 1/8 600 (50 ft.) — 1/pkg. $7.95420311 1/8 7 #117 12/pkg. $1.45420235 1/4 3-1/2 #64 1/4 lb. $2.45420236 1/4 3-1/2 #64 1 lb. $4.95420312 Assorted — 2 oz. $2.95420436 1/16 2-1/2 — 1 lb. $7.95850695 1/8 7 — 35/pkg. $4.95Motion Timer for Small ObjectsUse this timer to time small objects passing through itsopening—which is 1-1/2” wide and 1-1/8” high.Measure the velocity of rolling balls (horizontalor inclined motion) or dropping balls (verticalmotion). It can also be used to measure the laptime of an object or cumulative lap time of anobject passing through for multiple laps.With the use of two timers, acceleration can bemeasured. It has two sets of built in photo sensors.Recommended for indoor use. Ideal for Rube Goldbergand other physics experiments.841619 ..............................................................................................$39.95BottlesStock #Fig.Bottle CapsBottle Size(Ounces)PriceFlat Top, Blue391096 ..............8¢ or 6¢ ea./10+ or 5¢ ea./100+Sports, White391097 ......20¢ or 18¢ ea./10+ or 15¢ ea./100+Marbles9/16” dia. glass marbles in sixsolid colors (2 each). 12/pkg.870037 ........$1.45 or $1.25 ea./10+10+Price100+Price391092 A 8 36¢ 34¢ 32¢391093 B 12 38¢ 36¢ 34¢390993 C 16.9 (0.5L) 39¢ 37¢ 35¢391094 D 20 47¢ 45¢ 42¢Project CorksThese versatile corks are idealfor model boats, crash testvehicles, model rockets, boxbottoms, crafts and otherprojects. Corks can also beused in science experimentswith flotation. Set of corks thatmeasure a 1/2” in diameter.851152 5/pkg. ....99¢ or 85¢ ea./10+Suction Cupswith Hooks390749 3/4” dia. ......29¢ or 26¢ ea./10+390741 1-1/4” dia. ....39¢ or 35¢ ea./10+390747 1-3/4” dia. ....75¢ or 65¢ ea./10+390748 2-1/2” dia. ....85¢ or 75¢ ea./10+Find Rube Goldbergat www.kelvin.comCopyright © Kelvin L.P.1-800-535-8469 (9AM to 5PM E.S.T.)• FAX:1-800-756-1025 OR 1-631-756-1763 www.kelvin.com • 21

ODDS ‘N’ ENDS PRO JECT PARTSABalloons870016 A Long Balloons, 100/pkg. ..............................$13.95 or $12.95 ea./3+870013 B 9" dia., 100/pkg...........................................$10.95 or $9.95 ea./3+870014 C 11" dia., 100/pkg. ......................................$13.95 or $12.95 ea./3+870015 D 16" dia., 50/pkg.........................................$21.95 or $19.95 ea./3+ABCDFor Rube Goldberg® Machines,Vehicle Safety Design and more!Balloon PumpGive your lungs a rest and use youhands for blowing up balloons.870023 ............$8.95 or $8.45 ea./3+Mechanicaland Prototype PackA variety of parts you needfor your technology andmechanical design center.BONUS!! Storage Cabinet!841328 .......................... $ 359100 Front Wheels w/ End Cap100 Front Wheels w/ Ctr. Hole200 Dragster Wheels, Rear20 Mouse Trap Wheels40 CD Wheel Adapters100 Gear Wheels100 Front Gear Wheels100 2-1/4"” Axles100 2-1/2” Axles100 Economy Gears80 Economy Cams1 Sprocket Chain10 Worm Gears10 Bevel GearsBC10 Rack Gears100 Economy Pulleys20 Economy MotorsTwinePlied cotton twinefor a variety of uses.300 ft.330400 A ........$2.45Pulley Cord#18 dia. x 100 ft.330346 B ........$4.95MultiPurpose Cord3/16" dia. x 100 ft.330333 C ......$11.9520 Hi-Speed Motors24 Hi-Performance Motors24 Hi-Speed Propellers10 1" Boat Propellers20 Motor Holders30 Crank Handles100 Spring AssortmentPaper Clips390970 Small, 100/pkg. ............$1.75390950 Jumbo, 100/pkg.............$2.45Paper Fasteners390972 3/4” Long, 32/pkg. ......$1.45390973 1” Long, 32/pkg. ..........$2.45Pictures for Illustration Only2 Motor/Gear Box Kits1 BONUS: Storage CartMake A StrapDesign and make your ownstraps.390740 Strap, 10 ft. Long ..........$6.95Connectors390751 1 Male / 1 Female..........$4.95Make A Bungee CordMake your own bungee cordtester.390739 Cord, 10 ft. Long .......... $6.95Bungee End Connectors390750 Set of 4 ...................... $5.95Steering WheelUse these small steering wheelsto add a touch of realism toyour model cars and trucks.1/2" dia. x 1/8" W. Fits 1/8" dia.390609 50/pkg. ......................$9.95Parts AssortmentThis economical assortment ofproject parts includes:• [8] Propellers• [2] Gear Packs (4 pcs.)• [2] Cams• [2] Pulley Packs (4 pcs.).841586 ..........$9.95 or $8.95 ea./6+Copyright © Kelvin L.P.22 • www.kelvin.com 280 ADAM S BOULEVARD •FARM INGDALE,NY 11735 • USA