Axle bearing 144987 Carraro, aftermarket

For the backhoe loaders with Carraro axles: axle bearing 144987, an aftermarket part.

Signs of axle bearing wear are a whine or hum that grows under load or at idle, play felt at the wheel or flange, the axle casing running hotter than usual and oil leaking past the seals. Bearing life depends largely on the cleanliness and level of the axle oil, since water-contaminated or low oil causes pitting on the roller and ring surfaces. The axle oil is changed with the type and at the interval the maker specifies.

Specifications

Compatibility

According to the product card, Carraro 144987 is a bearing; cross numbers: 217-0049, S06/41760. Fit is confirmed by the axle or transmission type. Other parts are in Carraro.

Fitting

The bearing is changed in clean conditions; take the new bearing out of its packaging only at fitting and do not wipe off the protective oil. Press it into its housing or onto its shaft only with a suitable driver and only through the ring that has the interference fit; the rollers and cage must never be struck. On taper roller bearings the cone and the cup are replaced together. After fitting, set the bearing preload or clearance by the method in the machine's service manual and top up the axle oil to the specified level. The bearing is chosen by comparing its number and dimensions (bore, outside diameter and width) with the old one. During the first hours of work after the change, feel the axle casing around the bearing: excessive heat indicates too much preload, and the adjustment must be redone.