About Roller Chain and Sprockets
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Sprockets for Metric Roller Chain
Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN roller chain. They come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size.
Quick-Disconnect (QD) Bushings
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 | ||||||||
| 25mm | 46mm | 8mm | 3.3mm | 108 | Steel | Clamping Screws | 0000000 | 000000 |
SDS Style Bushing | ||||||||
| 25mm | 35mm | 8mm | 3.3mm | 108 | Steel | Clamping Screws | 0000000 | 00000 |
SH Style Bushing | ||||||||
| 25mm | 33mm | 8mm | 3.3mm | 108 | Steel | Clamping Screws | 0000000 | 00000 |
SK Style Bushing | ||||||||
| 25mm | 49mm | 8mm | 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 | |
1210 Style Bushing | |||||||||
| 25mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 000000 |
1610 Style Bushing | |||||||||
| 25mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
2012 Style Bushing | |||||||||
| 25mm | 32mm | 8mm | 3.3mm | 8° | 280 | Steel | Set Screws | 000000000 | 00000 |
2517 Style Bushing | |||||||||
| 25mm | 44mm | 8mm | 3.3mm | 8° | 430 | Steel | Set Screws | 000000000 | 00000 |
Split-Tapered Bushings
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.
Keyway | |||||||
|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Overall Wd. | Wd. | Dp. | Taper | Fastener Tightening Torque, in.-lbs. | Each | |
Steel | |||||||
H Style Bushing | |||||||
| 25mm | 1 1/4" | 8mm | 3mm | 3° | 95 | 00000000 | 000000 |
Quick-Grip Screw-Clamp Bushings
Also known as Trantorque bushings, these tighten with a twist of the collar nut—no screws needed. As you tighten the collar nut, the inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear.
| For Shaft Dia. | OD | Overall Wd. | Max. Torque, in.-lbs. | Each | |
Zinc-Plated Steel | |||||
|---|---|---|---|---|---|
| 25mm | 45mm | 48mm | 3,450 | 0000000 | 0000000 |
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 Shaft Dia. | OD | Overall Wd. | Max. Torque, in.-lbs. | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
| 25mm | 43mm | 30mm | 3,000 | 90 | Steel | Clamping Screws | 0000000 | 000000 |
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 Shaft Dia. | OD | Overall Wd. | Max. Torque, in.-lbs. | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
| 25mm | 55mm | 40mm | 6,950 | 142 | 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.
Stainless steel bushings have excellent corrosion resistance and can withstand prolonged exposure to moisture.
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 Shaft Dia., mm | OD, mm | Overall Wd., mm | Max. Torque, in.-lbs. | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
| 25 | 50 | 26 | 3,750 | 150 | Nickel-Plated Steel | Clamping Screws | 0000000 | 0000000 |