Precision Boring Operation

Precision bore machining on industrial pump housing components for a manufacturing plant. The project required boring of bearing housings and seal bores with tight tolerances and superior surface finish for a centrifugal pump overhaul.

We machined the pump housing bores to accommodate new bearing inserts and mechanical seal assemblies. The existing bores had worn beyond acceptable limits due to prolonged operation and required accurate machining to restore the pump to OEM specifications.

Work Carried Out:

• Bearing Housing Bores (2 locations): Bored to 110 mm H7 tolerance for new bearing inserts
• Mechanical Seal Housing: Precision boring of seal chamber bore with 0.8 Ra surface finish
• Step Boring: Multi-diameter boring for lantern ring and throttle bush recesses
• Facing: Register faces machined for perpendicularity to bore axis within 0.02 mm
• Stud Hole Tapping: M16 threaded holes for casing cover mounting, 12 locations on PCD

Result:

The pump was reassembled with new bearings and seals. Post-installation testing showed vibration levels within acceptable limits and zero leakage from seal housing. The pump has been operating at full capacity since the repair.