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Oil Seal OS NIPPON THOMPSON (IKO) Oil Seals, 1PC, 1, OS42557, 38330162, 9.99 SGD. Oil seal of bearing. 5. From Japan. On 2015-01-13 10:47:45. Depending on the application, the outside uses steel plates or rubber. It is an impression that we had not searched for a while before long ago as steel plate rings, but
for the OS type, or to fill the space between the two lips for the DS type, with bearing grease. □Precautions for Use. Fig.1. 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