BUSHING KIT

763 500 76 BUSHING KIT, ROTARY ACTUATOR Acting as a sacrificial bearing, this bushing separates two moving metal surfaces, typically a pin and its housing in a linkage joint. It absorbs the high loads and friction generated during rig movements, protecting more expensive and difficult-to-replace parts from premature wear. Proper function of these bushings is essential for maintaining the tight tolerances required for accurate drilling and stable rig positioning.

When a bushing wears out, it creates excessive clearance or 'play' in the joint. For example, worn bushings in the boom linkage can cause the entire feed to feel loose and difficult to position accurately. This not only affects drilling precision but also puts immense stress on the pins, welds, and hydraulic cylinders, leading to more significant and costly failures down the line.

Listen for knocking sounds from pivot points during operation and check for any visible looseness. Regular and correct greasing is the best way to extend a bushing's service life. If you notice significant play, replace the bushing promptly to avoid damaging the housing bore or the pin.