Multiquip EM903163 Bearing Cup (2523D) - OEM Replacement Part for C30HD Concrete Pumps

The bearing cup is a critical precision component in the crankshaft and cam assembly of Multiquip C30HD series concrete pumps, providing load support and smooth rotational movement during pumping operations. This bearing cup must be properly aligned and pressed into the bearing block to ensure the cam roller rides smoothly on the cam profile, preventing performance issues like skipping or irregular pumping cycles.

According to Multiquip maintenance procedures, the bearing cup should be placed into the bearing block using a hydraulic press, ensuring even alignment on both sides of the block. Improper bearing installation or wear can cause the cam roller to lose smooth contact with the cam profile, resulting in diminished pump output, material cylinder issues, or the "volcano effect" in the hopper. Daily lubrication of associated components with premium-grade grease is essential to prevent premature bearing wear.

This bearing cup is compatible with the following Multiquip concrete pump models:

• C30HDGA
• C30HDN
• C30HDNI
• C30HDZ

Genuine Multiquip OEM part, sold by an authorized dealer.