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An Industry First! Only Available from Nexen!
NexSafe™ Functional Safety Certified Servomotor Brake
Mount Directly to Servomotor Flange
Increased Safety for Processes & Machines!
Servomotor Brakes with Over 140 Models in 6 Different Frame Sizes available Off-the-Shelf.
“The Intertek Functional Safety mark provides customers like Nexen a way to illustrate reduced hazards and risks to operating personnel, machinery, and surrounding environments at a time when they are facing increased demands around functional safety. We're pleased to grant Nexen with this certification, the first of its kind in North America, and look forward to continuing to work with them, and others, as they provide their industry with high-quality products, as well as peace of mind."
-Pierrick Balaire, Global Business Line Leader at Intertek.
Learn more by watching the video
A New Standard in Performance
INDUSTRY 4.0 SOLUTION Nexen’s Servomotor Operating Mode Sensors for Engagement, Disengagement and Wear are Industry 4.0 compatible and can provide information to maximize machine efficiency. Having this information available aides with:
- Motor/Drive Programming
- Predictive Maintenance
- Operational Feedback
Nexen’s Spring Engaged, Air Released Servomotor Brakes are available safety certified to comply with international safety standard ISO 13849-1. Category Level up to 4 and Performance Level up to e, able to be achieved using NexSafe™ products in recommended configuration.
- Integral Clamp Collar with Backup Keyway
- 3 Operating Mode Sensors Available
- Multiple Engagement Springs
- Default to Lock
Servomotor Brake Functional Safety Certificate
“Nexen had the right brake, quick support and delivery time that easily integrated into our machine design. Whenever we need Nexen, they are always there!”
— Werner Bohner, President & Owner, Lorik Tool
- Need Assistance? Contact Customer Service at
- 800-843-7445 or send us a message
- Register your Nexen product
Servomotor Brake Sizes
Specifications shown as a range. Contact Nexen to make modifications to fit your application
For Details Select Model/Size
| Model/Size | Static Torque | Bore/Shaft Diameter |
Pilot Diameter |
Bolt Circle Diameter |
Minimum Release Pressure |
|---|---|---|---|---|---|
| Size 3 (fits NEMA 34) |
7.9 Nm [70 in-lbf] |
9 to 19 mm [.375 to .750 in] |
45 to 80 mm [1.77 to 3.15 in] |
85 to 115 mm [3.346 to 4.528 in] |
5.5 BAR [80 PSI] |
| Size 4 (fits NEMA 42) |
15.3 Nm [135 in-lbf] |
14 to 28 mm [.536 to 1.063 in] |
55.55 to 114.3 mm [2.178 to 4.50 in] |
110 to 150 mm [4.528 to 5.906 in] |
5.5 BAR [80 PSI] |
| Size 5 | 32.8 Nm [290 in-lbf] |
19 to 38 mm [.750 to 1.500 in] |
110 to 130 mm [4.33 to 5.12 in] |
149.2 to 186 mm [5.874 to 7.323 in] |
5.5 BAR [80 PSI] |
| Size 7 | 88.1 Nm [780 in-lbf] |
24 to 42 mm [1.000 to 1.625 in] |
114.3 to 180 mm [4.50 to 7.09 in] |
196.9 to 215 mm [7.75 to 8.46 in] |
5.5 BAR [80 PSI] |
| Size 9 | 88.1 Nm [780 in-lbf] |
32 to 55 mm [1.250 to 2.125 in] |
180 to 200 mm [7.09 to 7.87 in] |
215 to 235 mm [8.46 to 9.25 in] |
5.5 BAR [80 PSI] |
| Size 11 | 88.1 Nm [780 in-lbf] |
35 to 65 mm [1.375 to 2.500 in] |
230 to 250 mm [9.06 to 9.84 in] |
265 to 300 mm [10.43 to 11.81 in] |
5.5 BAR [80 PSI] |
