BRAKE DISC STEEL

550 635 49 BRAKE DISC, STEEL Installed within the brake pack of a hydraulic motor, these discs are responsible for generating the holding torque that locks the motor's output shaft. In a drilling rig, this function is essential for components like the drifter's rotation unit or the feed motor on the feed beam. When hydraulic pressure is released, internal springs clamp these discs together, creating friction that prevents any unwanted movement.

Proper brake function is directly tied to both safety and drilling accuracy. Worn or glazed discs can lead to brake slippage, causing the drill string to rotate unintentionally during rod changes or making it difficult to collar a hole precisely. A reliable brake prevents the feed or boom from drifting out of position, which is fundamental for a safe work environment.

A common symptom of wear is a noticeable loss of holding power, where the drill head or feed might slowly creep under load. If you detect any slippage, it's time to inspect the brake pack. Always replace these discs as a complete set to ensure even wear and consistent braking force. Contamination of the hydraulic oil with particles from worn discs can also indicate a need for replacement.