Reduction gear shaft seal 904/50047 JCB, OEM

For the JCB machines: reduction gear shaft seal 904/50047, an OEM part. According to the product card, this is the axle shaft seal on the reduction gear side.

Seals are defined by inside and outside diameter, width and lip type (single lip, with dust lip, cassette), and since seals of the same size come in different designs, the choice is made by part number. When changing a seal, check the shaft surface under the lip, since a groove worn there will soon make the new seal leak too, and the shaft or a wear sleeve must then be replaced.

Specifications

Compatibility

According to the product card, 904/50047 is an oil seal; cross numbers: 127684, 209-7465. Fit is confirmed by the part number. It measures 45 x 65 x 18.5 mm. The catalogue also has the aftermarket version of this part. Other parts are in Seals and oil seals.

Fitting

Clean the bore, lubricate the seal's outer surface and lip with clean oil and drive it squarely into place with a mandrel of suitable diameter, since a cocked seal leaks from the first run. Watch the direction: the spring-loaded lip faces the oil. After assembly, check the oil level and look for leaks after the first hours of work.