# Nexen 968251 SRG Spring Engaged Profile Rail Brake, Frame 55, 2600 N Holding Force, 127 mm Length, Stainless Steel - MROSupply.com

***Nexen 968251 SRG spring engaged, air released profile rail brake with frame size 55. Provides 2600 N linear holding force for fail-safe e-stop applications. Stainless steel construction, 127 mm length, 4 mm plastic tubing fitting inlet. Open design, < 0.20 mm backlash, 5.5 bar min release pressure, 6.9 bar max operating pressure. Not for cyclic dynamic braking.***



## Product details:

- Catalog number: 968251
- SKU: 5919425
- Price: ***$5,300.48*** 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
- 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: 28.600 cm³
  

  
- Approximate engagement response time: 225 ms
  

  
- Backlash: < 0.20 mm
  

  
- Engagement method: Spring
  

  
- Feedback sensors: No Sensors
  

  
- Finish: Stainless steel
  

  
- Frame size: 55
  

  
- Inlet size: 4 mm, Plastic Tubing Fitting
  

  
- Length: 127.0 mm
  

  
- Linear holding force: 2600 N
  

  
- Materials of construction: Stainless steel
  

  
- 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: Spring Engaged, Air Released
  

  
- Product weight: 5.21 kg
  

  
- Rail manufacturer: THK
  

  
- Release method: Air
  

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

  
- Safety rating: Standard
  

  
- Series: SRG
  

  
- Static b10/b10d cycle life: 1000000/2000000
  

  
- Unit height: 58 mm
  

  
- Unit width: 130 mm
  
## Product documents / software:

- [PDF CAD Drawing](https://documents.mrosupply.com/product_documents/59/19/5919425/968251S_4ionyZ0.pdf)
- [Technical Data Sheet](https://documents.mrosupply.com/product_documents/59/19/5919550/21327_Wum8YQK.pdf)
- [User Manual](https://documents.mrosupply.com/product_documents/59/19/5919509/21326_6xzB9JF.pdf)
- [DXF CAD Drawing](https://documents.mrosupply.com/product_documents/59/19/5919425/968251S_zXVQAz2.dxf)
- [STEP CAD File](https://documents.mrosupply.com/product_documents/59/19/5919425/1613522_eu5FSWU.stp)

## Product's reviews:
- None - all good
- 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.