Sprockets for 40mm Shaft Diameter

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System of Measurement

Shaft Diameter

Shaft Type

Bushing Trade Number

Number of Teeth

Bore Type

Belt Trade Size

Overall Width

Press-Fit Mount Type

Pitch

For Maximum Belt Width

Diameter

Teeth Shape

Hub Diameter

Shaft Mount Type

Keyway Width

Inside Width

Material

17-4 PH Stainless Steel

Bushing Type

Pitch Diameter

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

REACH

RoHS

15 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.

For technical drawings and 3-D models, click on a part number.

		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
SDS Style Bushing
40mm	35mm	12mm	3.3mm	108	Steel	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

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.

For technical drawings and 3-D models, click on a part number.

		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
2517 Style Bushing
40mm	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.

For technical drawings and 3-D models, click on a part number.

		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

Flanged Screw-Clamp Bushings

A mounting flange prevents movement during tightening. These bushings are good for shock loads. When you tighten the included screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. They can be mounted on shafts with or without keyways.

For technical drawings and 3-D models, click on a part number.

For Shaft Dia.	OD	Overall Wd.	Max. Torque, in.-lbs.	Fastener Tightening Torque, in.-lbs.	Material	Includes		Each
40mm	62mm	38mm	8,550	150	Steel	Clamping Screws	0000000	0000000

Flush-Mount Screw-Clamp Bushings

Insert these bushings into the bore of your sprocket for flush or recessed mounting. They handle shock loads. When you tighten the included clamping screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. They can be mounted on shafts with or without keyways.

For technical drawings and 3-D models, click on a part number.

For Shaft Dia.	OD	Overall Wd.	Max. Torque, in.-lbs.	Fastener Tightening Torque, in.-lbs.	Material	Includes		Each
40mm	75mm	54mm	25,500	363	Steel	Clamping Screws	0000000	0000000

Corrosion-Resistant Flanged Screw-Clamp Bushings

Made from stainless steel or plated with nickel, these bushings resist corrosion. A mounting flange prevents movement during tightening. As screw-clamp bushings, they're good for shock loads. When you tighten the clamping screws, the bushing's inner sleeve tightens onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear.

Nickel-plated steel bushings have good corrosion resistance in wet environments. However, the plating may begin to flake with long-term use.

For technical drawings and 3-D models, click on a part number.

Nickel-Plated Steel
For Shaft Dia.	OD	Overall Wd.	Max. Torque, in.-lbs.	Fastener Tightening Torque, in.-lbs.	Includes		Each
40mm	76mm	49mm	6,350	120	Clamping Screws	0000000	0000000

Corrosion-Resistant Flush-Mount Screw-Clamp Bushings

Insert these nickel-plated steel bushings into the bore of your sprocket for flush or recessed mounting in wet environments. When you tighten the included clamping screws on these bushings, their inner sleeve contracts onto the shaft and their outer sleeve expands to hold your sprocket, pulley, or gear. This keeps bushings from slipping during sudden starts and stops.

For technical drawings and 3-D models, click on a part number.

For Shaft Dia., mm	OD, mm	Overall Wd., mm	Max. Torque, in.-lbs.	Fastener Tightening Torque, in.-lbs.	Material	Includes		Each
40	65	26	9,450	150	Nickel-Plated Steel	Clamping Screws	0000000	0000000

Quick-Grip Flanged Hydraulic Bushings

Tighten just one set screw to clamp these bushings evenly around your shaft. The screw forces hydraulic fluid in between the double-walled sleeve, expanding the two walls against the shaft and the hub of your sprocket, pulley, or gear for a tight hold. Since you don’t have to tighten multiple screw clamps individually, these bushings are quick to adjust and more likely to stay aligned on your shaft. They’re also good for shock loads. A mounting flange prevents movement during tightening. Use a hex key to tighten.

Note: To avoid deforming the sleeve walls, make sure to fully tighten the screw.

Stainless steel bushings have excellent corrosion resistance in most environments.

For technical drawings and 3-D models, click on a part number.

			Set Screw
For Shaft Dia.	OD	Overall Wd.	Hole Dia.	Thread Size	Max. Torque, in.-lbs.	Fastener Tightening Torque, in.-lbs.		Each
Steel
40mm	86mm	75mm	5/8"	M16	9,700	180	0000000	0000000
17-4 PH Stainless Steel
40mm	86mm	75mm	5/8"	M16	9,700	180	0000000	00000000

Timing Belt Idler Pulleys

Add these free-spinning pulleys to your timing belt setup to minimize vibration and keep belts from wearing out. The needle bearing at the center of these pulleys is lined with small, cylindrical rollers that reduce friction as they rotate. This bearing allows both the pulley and the shaft it’s mounted on to spin independently. Made from iron or steel, these pulleys are strong and wear-resistant. The black oxide coating protects the pulleys from corrosion in dry environments.

Curved teeth have more surface contact with belts than traditional trapezoidal teeth, which allows you to apply more torque without damaging belts. These teeth fit together seamlessly to prevent backlash, or unwanted movement of the belt on the pulley, for a smooth, quiet cycle. They are also known as curvilinear belt pulleys.

For technical drawings and 3-D models, click on a part number.

Metric—Press-Fit Mount

With Two Flanges

With Two Flanges and a Hub

For GT2 Belt Trade Size
For Max. Belt Wd., mm	OD, mm	Number of Teeth	Teeth Shape	Pitch, mm	For Shaft Dia., mm	Dia., mm	Bore Type	Inside Wd., mm	Outside Wd., mm	Overall Wd., mm	Pitch Dia., mm	Number of Flanges	Fabrication	Material	Bearing Type	Hub Dia., mm		Each
37	146	30	Curved	14	40	130.89	Plain	37	52.32	58.67	133.68	2	Machined	Black-Oxide Iron	Needle Roller	111	0000000	0000000