# Nexen 968145 Spring Engaged Profile Rail Brake, HSR Series, 20 Frame, 800 N Holding Force, 77 mm Length, Black Oxide - MROSupply.com

***Nexen 968145 Spring Engaged Profile Rail Brake, HSR Series, 20 frame size. This safety-rated rail brake provides 800 N linear holding force with spring-engaged, air-released operation. Features black oxide finish, 77 mm length, 4 mm plastic tubing inlet, and CE/RoHS certifications. Suitable for infrequent e-stop applications, not for cyclic dynamic braking. NexSafe certified.***



## Product details:

- Catalog number: 968145
- SKU: 693872
- Price: ***$1,057.36*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Nexen](https://www.mrosupply.com/brands/nexen/)
- Category: 
    - [Guide Accessories](htts://www.mrosupply.com/linear-motion/linear-bearings-guides/guide-accessories/)
    - [Linear Bearings & Guides](htts://www.mrosupply.com/linear-motion/linear-bearings-guides/)
    - [Linear Motion](htts://www.mrosupply.com/linear-motion/)
- Unit of measure: each
- Weight: 2.000 lb
- Technicall support: contact supplier for technical support on 800 843 7445


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


## Product attributes;

  
- Air chamber volume: 4.700 cm³
  

  
- Approximate engagement response time: 44 ms
  

  
- Backlash: < 0.20 mm
  

  
- Badge: NexSafe
  

  
- CE certified: CE
  

  
- Engagement method: Spring
  

  
- Feedback sensors: No Sensors
  

  
- Finish: Black oxide
  

  
- Frame size: 20
  

  
- Inlet size: 4 mm, Plastic Tubing Fitting Screwed Into A M5 Port
  

  
- Length: 77.0 mm
  

  
- Linear holding force: 800 N
  

  
- Materials of construction: Black oxide
  

  
- Max ambient temperature (°F): 150
  

  
- Max intermittent ambient temperature (°F): 212
  

  
- Max operating pressure (bar): 6.9
  

  
- Min ambient temperature (°F): 33
  

  
- Min release pressure (bar): 5.5
  

  
- Open or enclosed design: Open
  

  
- Product features: Safety Rated, Spring Engaged, Air Released
  

  
- Product weight: 0.62 kg
  

  
- Rail manufacturer: THK
  

  
- Release method: Air
  

  
- Restrictions: Suitable For Infrequent E-Stops, Not For Use In Cyclic Dynamic Braking Applications
  

  
- RoHS compliant: RoHS
  

  
- Safety rating: NexSafe Certified
  

  
- Series: HSR
  

  
- Static b10/b10d cycle life: 2000000/4000000
  

  
- Unit height: 25.5 mm
  

  
- Unit width: 64.5 mm
  
## Product documents / software:

- [Application Guide](https://documents.mrosupply.com/product_documents/59/19/5919422/21706_VGYieY3.pdf)
- [PDF CAD Drawing](https://documents.mrosupply.com/product_documents/69/38/693872/968145S_G51U8NP.pdf)
- [Product Flyer](https://documents.mrosupply.com/product_documents/59/19/5919422/21707_qpC7i8l.pdf)
- [Technical Data Sheet](https://documents.mrosupply.com/product_documents/59/19/5919550/21327_Wum8YQK.pdf)
- [User Manual](https://documents.mrosupply.com/product_documents/59/19/5919423/21698_68rMgXO.pdf)
- [DXF CAD Drawing](https://documents.mrosupply.com/product_documents/69/38/693872/968145S_Zk3P6sH.dxf)
- [STEP CAD File](https://documents.mrosupply.com/product_documents/69/38/693872/1618099_NdZyW9r.stp)

## 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