High-Torque, Zero Backlash Brake
Description
Model I-300 spring engaged, air released, power-off brake is designed to provide high torque for backlash-free holding and emergency stopping on indexers and positioning systems. The I-300’s high torque and short response time ensure the shortest possible stopping distance.
The brake connects to the shaft with tapered, keyless locking devices. It is normally engaged until air pressure is applied to release it. Nexen’s patented braking element locks and holds the shaft in position without any displacement upon engagement or reversing of the load.
Key features for the I-300 brake include:
- Zero Backlash for precise holding
- High dynamic torque: 5300 in-lbs. (600 Nm)
- Torsionally stiff: 6,152,148 ft-lbs. per radian (8,341,193 Nm/rad)
- Spring engaged, air released: 60 psi (4.1 bar)
- Engagement response time: 85 milliseconds
- Stackable for double the braking torque
- Horizontal or vertical mounting
- Flange mounts to machine frame
- Mounts to a bearing supported shaft
Specs
Features: | True Zero Backlash, High Torque, Spring Engaged Bake |
Comments: | IP67 Rated When End Mounted And Sealed To Machine Frame |
Comments: | Mounting Bushings Available From B-Loc, Lovejoy, Ringfeder, And Others. See Technical Data Sheet In Left Column. |
Actuator Cycle Life: | 1,000,000 Static Holding Cycles, E-Stops Or Dynamic Dynamic Stops Contact Nexen |
Open Or Enclosed Design: | Enclosed |
Bore Size: | 65 mm |
Bore Style: | Straight Keyless Bore With Customer Supplied Mechanical Compression Coupling |
Over All Length: | 105.0 mm |
Over All Diameter: | 280.0 mm |
Minimum Static Brake Torque: | 600 Nm |
Brake Peak Thermal Input Rate: | 17.00 hp |
Shaft Inertia: | 211.60 kgcm² |
Max Rpm: | 2000 |
Actuation/Return: | Spring/Air |
Port Size: | 0.250 BSPT |
Maximum Pressure: | 6.9 bar |
Minimum Release Pressure: | 4.1 Bar |
Temperature Range: | 4.4 - 93°C |
Coupling Brand/Type: | Mechanical Keyless Compression Bushing *Customer Supplied* |
Torsional Rigidity: | 8,341,193 Nm/rad |
Ratings: | IP67 When Input Is Sealed To Machine Frame, CE, And RoHS |
Finish: | Black Acrylic Paint |
Restrictions: | Not Recommended For Cyclic Dynamic Braking |
Other Bore Sizes Available Upon Request | |
Weight: | 66.0 LB |