Rotary Seals - Dilanda.it

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Axial Shaft Seal n Materials Table LI shows the available standard materials. Materials for elastomer and metal parts are selected according to the requirements for temperature and fluid resistance. Table LI Materials Standard Materials Material code Elastomers Membrane and sealing lip Metal parts Reinforcement ring + spider spring Special materials are available on request. Acrylonitrile Butadiene Elastomer (NBR) 75 Shore A Colour: black/anthracite Temperature range: - 30 °C to + 120 °C Fluoroelastomer (FKM) 75 Shore A Colour: anthracite (Identification mark: yellow dot) Temperature range: - 25° C to + 250° C Reinforcement ring: Steel 1.0338/St 14.03 Star-type spring: Spring steel 1.0605/C75 NCM_ VCM_ ___M 180 Latest information available at www.busakshamban.com Edition April 2006
Axial Shaft Seal Design instructions The design of the sealing area should be made according to the information on the individual types given in Figure 75 and 76. Suitable mating faces for the sealing lip can be achieved in various ways, f.i. by using the hardened end face of a Roller bearing. The bearing must not have identification marks on the side used as a mating face. Other design possibilities are shaft collars, back-up washers, etc. The mating face can be of steel, brass, bronze, aluminium alloys and ceramic materials. The mating surface must be clean and smooth without spiral grooves or scratches. Recommended surface hardness for steel is HRC > 40, for other materials lower hardness can be employed. Installation recommendation Before installation of the seal, the sealing surface should be cleaned and greased lightly to minimize wear during the run-in phase. Installation is, in most cases, performed “blind“, i.e. uniform contact between the sealing lip and the mating face cannot be checked visually. During installation the sealing lip must not be damaged or deformed, and the seal must be installed parallel to the mating face. This is best ensured if the seal is installed against a seat in the housing with an assembly tool (Figure 78). Optimal seal performance is obtained when the seal or mating face is positioned in line with the front end of the seal. Surface roughnesses: Contact surface: with oil lubrication R max < 2.5 μm (R a 1.0 μm, R z < 1.6 μm) with grease lubrication R max < 6.3 μm (R a 2.5 μm, R z < 4.0 μm) Radial runout of the shaft has very little influence on seal efficiency. The axial runout - at the maximum permissible rotational speed - must not exceed 0.03 mm when sealing against oil and 0.05 mm when sealing against grease. 0.1 Assembly tool Figure 78 Installation of the axial shaft seal using an assembly tool. Latest information available at www.busakshamban.com Edition April 2006 181
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Rotary Seals Deutsch Your Partner f
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Rotary Seal General description ...
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Rotary Seal n GENERAL DESCRIPTION T
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Rotary Seal V—Rings Family V—Ri
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Rotary Seal PTFE Rotary Shaft seals
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Rotary Seal n Introduction Rotating
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Rotary Seal Shaft run out and eccen
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Rotary Seal n Quality criteria The
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Rotary Seal n Design instructions A
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Rotary Seal Surface finish In order
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Radial Oil Seal Sealing element Mat
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Radial Oil Seal Fluorinated Rubber
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Radial Oil Seal Metal case The prin
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Radial Oil Seal Peripheral speed an
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Radial Oil Seal n Shaft and housing
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Radial Oil Seal n Standard types of
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Radial Oil Seal Table VI Materials
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Radial Oil Seal Dimension Part no.
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Radial Oil Seal n Busak+Shamban typ
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Radial Oil Seal n Special types of
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Radial Oil Seal Table XVIII Materia
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Radial Oil Seal Table XIX Materials
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Radial Oil Seal Ordering example oi
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Radial Oil Seal Table XXI Materials
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Radial Oil Seal n STEFA type 12CC -
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Radial Oil Seal n Rotary and axial
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Radial Oil Seal n Product descripti
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Radial Oil Seal n STEFA standard AP
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Radial Oil Seal n STEFA 1B/APJ and
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End Cover n END COVER General descr
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End Cover Bore D H8 Width B Chamfer
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End Cover n Busak+Shamban type YJ 3
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Shaft Repair Kit n SHAFT REPAIR KIT
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Shaft Repair Kit n Installation rec
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Page 133 and 134: Shaft Repair Kit Shaft diameter imp
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Page 137 and 138: Cassette Seal n System 3000 n Syste
Page 139 and 140: Cassette Seal ID d 1 OD Width Syste
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Page 153 and 154: V—Ring n Dimension table - V—Ri
Page 155 and 156: V—Ring For shaft diameter d 1 Ins
Page 161 and 162: V—Ring Ordering example V—Ring,
Page 169 and 170: V—Ring V—Ring AX larger than 20
Page 171 and 172: GAMMA Seal Figure 64 70 TBP/RB RB 5
Page 173 and 174: GAMMA Seal b b ø d + 0.5 ø d Figu
Page 175 and 176: GAMMA Seal Table XLVII Materials St
Page 177 and 178: GAMMA Seal n GAMMA-seal type TBR/9R
Page 179 and 180: Axial Shaft Seal n AXIAL SHAFT SEAL
Page 181: Axial Shaft Seal n Applications Fie
Page 185 and 186: Axial Shaft Seal Shaft Dimensions M
Page 187 and 188: Axial Shaft Seal Ordering example A
Page 189 and 190: Axial Shaft Seal Shaft Dimensions M
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Page 213 and 214: Latest information available at www
Page 220: For further information: Europe Tel
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