383.934.440.462 (L21/31-50601-11-139) | CRANKPIN BEARING SHELL

BRAND:

CYM was established in 1956 and is a wholly-owned subsidiary of CSSC. Specializing in the design and production of marine diesel engine bearings and bushings, intake and exhaust valves and valve seats, water and oil pumps, and camshafts. She is MAN China OEM and Daihatsu China OEM, and her products are sold in Germany and other European and American markets and Japanese markets.

DESCRIPTION:

The crankpin bearing is made of highly wear-resistant aluminum alloy, and its upper and lower parts have the same shape.Replace the bearing with a new one every 20,000 hours (4 to 5 years)even if the wear is less than the allowable limit.

FEATURE:

The item is strictly produced in accordance with MAN original technical standard and drawings. The performance of it is the same as MAN genuine part, and also, it is able to be exchanged with MAN genuine part.

PRECAUTIONS:

1.1.   The shell is the thin-wall finished metal, and is provided with appropriate interference (crush) and tension so as to closely fit to the housing surface. Therefore, do not correct the rear surface and joint surfaces with a file or scraper.

1.2.   1) Be sure to replace the shell as one set of a pair of the upper shell and the lower one.

         2) When the shell is used for a long time, it shows reduction of the tension and hardening of its surface, resulting in crack or peel of the shell, even if the wear is; within the allowance value. Therefore, be minded to replace the shell every 16,000 to 24,000 hours (4 to 5 years).