Bushings

Bushings are tapered, split sleeves that clamp sheaves, sprockets, and pulleys onto a shaft without machining the component to a specific bore. One sheave casting serves dozens of shaft sizes; the bushing supplies the fit. This collection stocks 2,137 bushings across the three industry standard systems: Taper-Lock® (series 1008 through 7060), QD® (series JA through W), and double split taper (series G through U2).

Bores run 1/4 in to over 7 in plus metric sizes to 120 mm, in machined steel with black oxide finish, stainless steel for wash down service, and ductile iron grade 65-45-12 on large series. Every bushing is machined from solid stock, never sintered or powdered metal, which matters in a part that transmits its entire load through a friction fit. Product pages carry published cross references to Dodge®, Martin, Browning®, TB Woods®, Tsubaki, and a dozen other brands.

Which Bushing System Do I Have?

Taper-Lock bushings are flangeless and sit flush inside the component, with set screws driven parallel to the shaft. QD bushings have a visible flange with cap screws through it. Split taper bushings have a flange plus a keyed barrel split through both taper and barrel. The component determines the system: match the series stamped on the old bushing or machined into the component seat.

Frequently Asked Questions

Are bushing sizes interchangeable between brands?

Yes. Taper-Lock, QD, and split taper series dimensions are industry standards, so a 1610 bushing from any manufacturer fits any component machined for a 1610 seat. Each product page lists the matching Dodge, Martin, Browning, TB Woods, and Tsubaki numbers from published interchange data.

What is the difference between Taper-Lock and QD bushings?

Mounting style. Taper-Lock bushings are flangeless and mount flush inside the component using axial set screws, giving a clean narrow assembly. QD (quick detachable) bushings use a bolted flange that makes installation and removal faster on large or frequently serviced drives. The systems are not interchangeable with each other; the component seat determines which you need.

How do I find my bushing size?

Read the series number stamped on the existing bushing flange or barrel (for example 1610, SK, or P1), then measure the shaft bore. Series plus bore fully specifies the part: a 1610 x 1 is a 1610 series bushing with a 1 in bore.

Why does machined versus sintered steel matter in a bushing?

A bushing transmits its whole load through the friction grip of the taper. Machined solid steel has uniform density and grain, while sintered (powdered) metal parts can be more brittle under the wedging stress of the taper. Every bushing in this collection is machined from solid stock.