2 1/4" ID Sprockets | McMaster-Carr

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Shaft Diameter

2 1/4"

Bushing Trade Number

1610

2517

Number of Teeth

Shaft Mount Type

Clamp On

System of Measurement

Material

For Maximum Belt Width

Shaft Type

Bore Type

Pitch

Mount Type

Bushing Type

Keyway Width

Keyway Depth

Overall Width

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

RoHS

Teeth Shape

Fastener Tightening Torque

180 in·lbf

360 in·lbf

430 in·lbf

Number of Flanges

Fabrication

Outside Width

6 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
SF Style Bushing
2 1/4"	2 1/16"	1/2"	1/4"	360	Steel	Clamping Screws	00000000	000000
SK Style Bushing
2 1/4"	1 15/16"	1/2"	1/8"	180	Cast Iron	Clamping Screws, Machine Key	00000000	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
2517 Style Bushing
2 1/4"	1 3/4"	1/2"	1/4"	8°	430	Steel	Set Screws	000000000	000000

Ultra-High-Strength Poly Chain Timing Belt Pulleys

Curved teeth with a high pitch provide superior load distribution and reduce wear. They mount with a bushing for a more secure grip on the shaft than set screws. Bushing is not included. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.

Bushing Mount

For 12 mm Max. Belt Wd.
OD, mm	Number of Teeth	Pitch, mm	ID	Bore Type	For Bushing Style	Inside Wd., mm	Outside Wd., mm	Overall Wd., mm	Pitch Dia., mm	Number of Flanges	Fabrication	Material		Each
101.6	36	8	2.25"	Finished	Taper-Lock Style 1610	18.29	25.4	25.4	92	2	Machined	Black-Oxide Iron	0000000	0000000
For 21 mm Max. Belt Wd.
101.6	36	8	2.25"	Finished	Taper-Lock Style 1610	23.37	30.48	30.48	92	2	Machined	Black-Oxide Iron	0000000	000000
For 36 mm Max. Belt Wd.
100.03	36	8	2.25"	Finished	Taper-Lock Style 1610	40.89	42.24	47.2	91.67	2	Cast	Black-Oxide Iron	00000000	000000