Custom shaft collars sized by bore. A ring that clamps onto a shaft to locate a bearing, sprocket, or sheave.
Pick a bore size below to load a collar into the configurator. Each one has its OD, width, cup-point set-screw tapping, and slip fit to the shaft already sized to its bore (set screws not supplied). You stay in control of the bore, width, material (12L14 default; 303 stainless, 1045, or 4140), and the set-screw size, and you can add a second tapped screw hole or a keyway. Slide it on, line it up, and tighten against the shaft. Check your measured shaft size before ordering.
Collars by bore size
Custom one-piece set-screw shaft collars, sized by bore. A ring that clamps onto a shaft to locate a bearing, sprocket, or sheave. Each card loads a collar with the OD, width, and tapped screw hole sized to its bore (screws not supplied), into the configurator as an editable starting point. Machined from 12L14, 303 stainless, 1045, or 4140. Click a collar to begin.
OD, width and set-screw tap for each bore, the de-facto one-piece collar standard. Screws are not supplied; the collar is tapped for them. Split and clamp styles reuse the same envelope.
Slip bore (H9); OD and width are the common catalog proportions for each bore. Any dimension is editable in the configurator.
Frequently Asked Questions
By the bore, the diameter of the shaft it clamps onto. Pick the card that matches your shaft and the collar loads with the bore, OD, width, and tapped set-screw hole already sized to it. Slide it on, line it up, and tighten a set screw (not supplied) against the shaft. Every dimension stays editable in the configurator.
A cup-point socket set screw (ANSI B18.3), threaded radially through a tapped hole in the collar wall and bearing on the shaft. The hole is tapped for it; the screw itself is not supplied. A 1" bore collar is tapped 3/8-16, smaller bores step down to 5/16-18 and 1/4-20. For higher holding power, a flat or a shallow spot drilled on the shaft under the tapped hole helps; you can add a second tapped set-screw hole at 90 degrees in the configurator.
The cards default to 12L14 free-machining steel, with the OD left as the cold-finished bar comes from the mill; we face, bore, and tap it. Switch to 303 stainless for washdown service, or 1045 / 4140 for higher clamp duty, in the configurator. Material certs (MTRs) are available on request.
Yes, that is the point of building them to order. Set any bore in the configurator, with a slip fit to your measured shaft, plus the keyway or a second tapped set-screw hole if you need it. The bore is held to an ISO 286 H9 hole fit — the whole tolerance sits on the plus side of nominal (about +0.0020″ at a 1″ bore), so it is never undersize and the collar always slides on. Check your measured shaft size before ordering.