Grip Is a Tolerance, Not a Guess
A clamp mount holds a motor, a sensor, or a shaft by closing a split bore around it. Whether it grips reliably comes down to two things: the bore diameter, sized for the right interference when the slot pinches shut, and the clamp slot being cut so the two halves can actually flex and close on the fasteners. Too tight and it won't go on; too loose and it slips under load or vibration. It looks like a simple block, but the grip is a controlled tolerance.
The detail that decides it: the bore must be concentric and on-size, and the clamp slot positioned so clamping force is even around the shaft. Get those right and one fastener torque holds the motor true; get them wrong and it cocks or slips.
How It Was Made
1 — Machine the body and bore
The clamp was milled from 6061 aluminium with the main bore held concentric to the mounting features and sized for the intended grip. Fastener holes and counterbores were machined so the clamp pulls square.
2 — Cut the clamp slot
The split slot was cut so the bore can flex closed under the clamp screws — slot width and depth set how the clamp grips. This is the feature that turns a ring into a clamp, and its position relative to the bore is what keeps the grip even.
3 — Polish to a mirror finish
The faces were finished and polished to the mirror surface in the photo. On a part like this the finish is partly presentation, but a clean, mark-free surface also resists corrosion and makes the part easy to keep clean in service. Bore and slot are verified on inspection.
One-Off, Spare, or Matched Set
Clamps like this are often needed as a replacement for a discontinued mount, as a custom size for a non-standard motor, or as a matched set across a machine. Because it's machined from solid, a single piece is economical — and if you only have the old clamp and no drawing, we reproduce it the same way as any reverse-engineering job.
The Workflow
Mill body & bore
Concentric bore sized for grip; fastener holes machined square.
Cut the clamp slot
Split slot cut so the bore flexes closed evenly under the screws.
Finish & polish
Faces finished and polished to a mirror surface.
Verify grip features
Bore size, concentricity and slot checked before shipping.
Outcome
A clamp that grips concentrically and holds, finished to a standard that looks the part on a machine — made from solid as a one-off or a set. Precision clamps, mounts and brackets for motors and automation are routine industrial equipment work for us.
Need a clamp, mount or bracket? Send a drawing, the old clamp, or the shaft/motor it grips plus your fit. We machine it concentric, with the right clamp action, and finish it. Email [email protected] or message us on WhatsApp.
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