>> P.511
Lb + 1 mm or morebFig.2 Mounting examplesL2■Precautions for Use 1 For the single lip OS type, the lip has to face inward when using the seal to prevent grease leakage, and outward to prevent the penetration of foreign particles. The DS type of double-lips is effective for prevention of grease leakage and dust penetration. However, when the main purpose is to prevent grease leakage, the main lip should face inward, and when used main-ly to prevent dust penetration, it should face outward. 2 The permissible temperature range is -20〜+100℃. For use at higher or lower temperatures, a special seal is required. Please contact IKO for further infor-mation. 3 The limiting peripheral speed of shaft depends on the conditions of use, but is normally 6 to 8 m/s. Double this speed is possible if the conditions (lubri-cation, temperature, shaft nish, etc.) are good. 4 The housing t surface length should be at least 1 mm longer than the seal width dimension b, as shown in Fig. 2.■MountingWhen inserting the shaft, damage to the lip should be prevented by chamfering the end of the shaft, as shown in the upper part of Fig. 1. When this cannot be performed, a mounting bushing should be used, as shown in the lower part of Fig.1. When press fitting the seal to the housing, do not strike it directly, but t it gently, using a suitable tool. To prevent early wear and heat generation at the seal surface, it is necessary to thickly coat the tip of the lip for the OS type, or to ll the space between the two lips for the DS type, with bearing grease. 3mm30°Secondary lipMain lipBushing for mountingFig.1
| < 
| 
> | 
>>
