12mm Keyway Width Sprockets

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Shaft Diameter

40 mm

42 mm

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Keyway Width

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DFARS Specialty Metals

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Export Control Classification Number (ECCN)

EAR99

RoHS

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REACH

Compliant

Fastener Tightening Torque

Taper

Fabrication

13 Products

Quick-Disconnect (QD) Bushings

Clamp On

The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.

		Keyway
For Shaft Dia.	Overall Wd.	Wd.	Dp.	Fastener Tightening Torque, in.-lbs.	Material	Includes		Each
Clamp On
SD Style Bushing
40mm	46mm	12mm	3.3mm	108	Steel	Clamping Screws	0000000	000000
42mm	46mm	12mm	3.3mm	108	Cast Iron	Clamping Screws	0000000	00000
SDS Style Bushing
40mm	35mm	12mm	3.3mm	108	Steel	Clamping Screws	0000000	00000
42mm	35mm	12mm	3.3mm	108	Cast Iron	Clamping Screws	0000000	00000
SF Style Bushing
40mm	52mm	12mm	3.3mm	360	Steel	Clamping Screws	0000000	00000
SK Style Bushing
40mm	49mm	12mm	3.3mm	180	Steel	Clamping Screws	0000000	00000
42mm	49mm	12mm	3.3mm	180	Steel	Clamping Screws	0000000	00000

Taper-Lock Bushings

Mount these hubless bushings flush into your sprocket or pulley for a slim profile with no protruding screws. They are for use with taper-lock sprockets of the same bushing style. As you tighten the included set screws, the bushing grips the shaft and pulls it into your sprocket or pulley.

		Keyway
For Shaft Dia.	Overall Wd.	Wd.	Dp.	Taper	Fastener Tightening Torque, in.-lbs.	Material	Includes		Each
2012 Style Bushing
40mm	32mm	12mm	3.3mm	8°	280	Steel	Set Screws	000000000	000000
42mm	32mm	12mm	3.3mm	8°	280	Steel	Set Screws	000000000	00000
2517 Style Bushing
40mm	44mm	12mm	3.3mm	8°	430	Steel	Set Screws	000000000	00000
42mm	44mm	12mm	3.3mm	8°	430	Steel	Set Screws	000000000	00000
3020 Style Bushing
40mm	51mm	12mm	3.3mm	8°	800	Steel	Set Screws	000000000	00000

Split-Tapered Bushings

Steel and Cast Iron

The tapered barrel on these bushings is split on both sides, allowing them to contract more tightly around the shaft than quick-disconnect and taper-lock bushings. They're for use with split-tapered sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.

Bushings with a machine key fit into a matching keyway on a sprocket or pulley for high-torque applications.

		Keyway
For Shaft Dia.	Overall Wd.	Wd.	Dp.	Taper	Fastener Tightening Torque, in.-lbs.		Each
Cast Iron
Q1 Style Bushing with Machine Key
40mm	2 1/2"	12mm	3mm	3°	348	00000000	000000