High-Torque Friction Torque Limiters
With rugged roller chains, these torque limiters handle more torque than other torque limiters. They have a disc that creates friction to prevent torque overload, control tension, and brake. If there’s too much torque, they’ll slip and only transmit the set torque. For example, they could be used in a machine that tightens a bottle cap to a certain torque without overtightening and breaking the bottle. Because they rely on friction, exposing them to moisture, oil, or lubricants can affect their performance. You can adjust the torque by rotating the hex nut on the hub.
They act as a flexible shaft coupling, so they reduce vibration and protect components from wear by compensating for angular and parallel misalignment. Fasten them to your shafts by tightening the set screws, which bite into each shaft to hold it.
Single-spring torque limiters let you make finer torque adjustments than double-spring torque limiters but can only withstand half as much torque.
Double-spring torque limiters handle twice as much torque as single-spring torque limiters but are not the best for making precise adjustments at low torques.
For technical drawings and 3-D models, click on a part number.
Torque, ft.-lbs. | Misalignment Capability | Roller Chain | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | For Shaft Type | Min. | Max. | Max. Speed, rpm | Parallel | Angular | OD | Overall Lg. | Keyway Wd. × Keyway Dp. | Drive Direction | Standard | Trade Size | Each | |
Single Spring | ||||||||||||||
12mm × 12mm | Keyed × Keyed | 0 | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4mm × 2mm 4mm × 2mm | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 0000000 |
12mm × 15mm | Keyed × Keyed | 0 | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4mm × 2mm 5mm × 2.5mm | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
15mm × 15mm | Keyed × Keyed | 0 | 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 5mm × 2.5mm 5mm × 2.5mm | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
15mm × 20mm | Keyed × Keyed | 0 | 75 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 5mm × 2.5mm 6mm × 3mm | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
20mm × 20mm | Keyed × Keyed | 0 | 75 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6mm × 3mm 6mm × 3mm | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
20mm × 25mm | Keyed × Keyed | 0 | 75 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6mm × 3mm 8mm × 4mm | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
25mm × 25mm | Keyed × Keyed | 0 | 75 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 8mm × 4mm 8mm × 4mm | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
Double Spring | ||||||||||||||
12mm × 12mm | Keyed × Keyed | 0 | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4mm × 2mm 4mm × 2mm | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
12mm × 15mm | Keyed × Keyed | 0 | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4mm × 2mm 5mm × 2.5mm | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
15mm × 15mm | Keyed × Keyed | 0 | 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 5mm × 2.5mm 5mm × 2.5mm | Clockwise and Counterclockwise | ANSI | 35-2 | 00000000 | 000000 |
15mm × 20mm | Keyed × Keyed | 0 | 150 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 5mm × 2.5mm 6mm × 3mm | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
20mm × 20mm | Keyed × Keyed | 0 | 150 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6mm × 3mm 6mm × 3mm | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
20mm × 25mm | Keyed × Keyed | 0 | 150 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6mm × 3mm 8mm × 4mm | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
25mm × 25mm | Keyed × Keyed | 0 | 150 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 8mm × 4mm 8mm × 4mm | Clockwise and Counterclockwise | ANSI | 40-2 | 00000000 | 000000 |
Linear Bearing Hand Brakes
For precise positioning in your linear motion system, add these brakes to manually lock a bearing in place on a shaft. Since they have a handle, you don’t need any tools to open and close them for quick adjustments. Their clamp applies even force around your shaft to maintain your system’s alignment during adjustments. To install, fasten the brake to the same mounting surface as your linear bearing.
For technical drawings and 3-D models, click on a part number.
Block | Mounting Holes | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Max. Clamping Force, lbs. | Lg. | Wd. | Ht. | Handle Lg. | Temp. Range, °F | Block Material | For Shaft Material | No. of | Thread Size | Mounting Fasteners Included | Each | |
12mm | 265 | 32mm | 43mm | 24mm | 44mm | 14° to 158° | Steel | Stainless Steel, Steel | 2 | M5 | No | 0000000 | 0000000 |
16mm | 265 | 38mm | 53mm | 29mm | 44mm | 14° to 158° | Steel | Stainless Steel, Steel | 2 | M6 | No | 0000000 | 000000 |
20mm | 265 | 44mm | 60mm | 32mm | 63mm | 14° to 158° | Steel | Stainless Steel, Steel | 2 | M8 | No | 0000000 | 000000 |
25mm | 265 | 52mm | 78mm | 38mm | 63mm | 14° to 158° | Steel | Stainless Steel, Steel | 2 | M10 | No | 0000000 | 000000 |