# Nexen 964940 Spring Engaged Ball Screw Brake - Motor or Reducer Mount, 16 to 32 mm Bore, Zero Backlash, IP67 - MROSupply.com

***Nexen 964940 spring engaged ball screw brake with zero backlash, enclosed design, and motor or reducer mounting. Accepts Nexen couplings with 16 to 32 mm input bore, provides 45 Nm static torque, and rated for 10000 RPM. Black anodized construction, IP67 protection, CE/RoHS compliant. Suitable for holding and e-stop applications.***



## Product details:

- Catalog number: 964940
- SKU: 533058
- Price: ***$2,130.69*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 3 days
- Brand: [Nexen](https://www.mrosupply.com/brands/nexen/)
- Category: 
    - [Pneumatic Brakes](htts://www.mrosupply.com/clutches-and-brakes/pneumatic-clutches-brakes/pneumatic-brakes/)
    - [Pneumatic Clutches & Brakes](htts://www.mrosupply.com/clutches-and-brakes/pneumatic-clutches-brakes/)
    - [Clutches and Brakes](htts://www.mrosupply.com/clutches-and-brakes/)
- Unit of measure: each
- Weight: 13.000 lb
- Technicall support: contact supplier for technical support on 800 843 7445


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- Anti rotation style: Flange
  

  
- Approximate engagement response time: 60 ms
  

  
- Approximate release response time: 100 ms
  

  
- Backlash: 0 ArcSec
  

  
- Backlash rating: Zero Backlash
  

  
- Bore details: Straight Bore
  

  
- Bore size: 16.000 to 32.000 mm Bore Nexen Couplings Available, Sold Separately
  

  
- Bore style: Bore Accepts Nexen Coupling
  

  
- Braking capability: E-Stop, Holding
  

  
- CE certified: CE
  

  
- Coupling type: Elastomer/Clamp Collar
  

  
- Enclosure: Enclosed
  

  
- Engagement method: Spring
  

  
- Feedback sensors: No Sensors
  

  
- Finish: Black Anodized
  

  
- IEC IP rating: IP67
  

  
- Inlet size: 0.125 NPT
  

  
- Input bore diameter: 16 to 32 mm, See Couplings
  

  
- Input pilot diameter: 131.0 mm
  

  
- Length: 127.0 mm
  

  
- Materials of construction: Black Anodized
  

  
- Max allowable pressure (bar): 8.3
  

  
- Max ambient temperature (°F): 150
  

  
- Max angular misalignment: 0.8 °
  

  
- Max axial float: ± 2 mm
  

  
- Max bore size: 32 mm
  

  
- Max input bolt circle diameter: 186 mm
  

  
- Max lateral misalignment: 0.10 mm
  

  
- Max Speed: 10000 RPM
  

  
- Min ambient temperature (°F): 32
  

  
- Min bore size: 16 mm
  

  
- Min input bolt circle diameter: 150 mm
  

  
- Min release pressure (bar): 5.5
  

  
- Min static brake torque: 45 Nm
  

  
- Mounting style: Motor or Reducer
  

  
- Open or enclosed design: Enclosed
  

  
- Output shaft style: None
  

  
- Product features: Spring Engaged, Zero Backlash, Coupling Required
  

  
- Release method: Air
  

  
- Restrictions: Not Recommended For Cyclic Dynamic Braking
  

  
- RoHS compliant: RoHS
  

  
- RPM: 10000
  

  
- Shaft inertia: 11.4 kgcm²
  

  
- Static b10/b10d cycle life: 1000000/2000000
  

  
- Torsional rigidity: 9750 Nm/Rad, With Coupling
  

  
- Unit height: 9 in
  

  
- Zero backlash: Show All, Zero Backlash
  
## Product documents / software:

- [PDF Cad Drawing](https://documents.mrosupply.com/product_documents/96/964940/964940s.pdf)
- [Technical Data Sheet](https://documents.mrosupply.com/product_documents/92/927507/21181.pdf)
- [User Manual](https://documents.mrosupply.com/product_documents/88/887021/21180.pdf)

## Product's reviews:
- Great service - Provide great pricing, accurate order processing, and timely delivery. I recommend MRO for your electronic needs.
- Great prices and great service - I continue to use MRO for various production parts I need. They beat the competition hands down. And the delivery is timely.
- None - all good