# Nexen 827821 Air Engaged Tension Brake - Shaft Mount, 25 mm Bore, 1800 RPM - MROSupply.com

***Nexen 827821 air engaged tension brake with shaft mount design and 25 mm straight machined bore with keyway. Open-style brake features black oxide finish, single caliper, and air-cooled operation. Delivers 33 Nm max static torque and 25 Nm max dynamic torque, with max speed of 1800 RPM. Suitable for continuous slip, cyclic dynamic, e-stop, and holding applications.***



## Product details:

- Catalog number: 827821
- SKU: 533172
- Price: ***$775.17*** 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: 9.000 lb
- Technicall support: contact supplier for technical support on 800 843 7445


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


## Product attributes;

  
- Actuation type: Single Actuator
  

  
- Anti rotation style: Flange, Optional Torque Pin Bracket
  

  
- Approximate brake facing life: 343.0 kWhr
  

  
- Bore details: Straight
  

  
- Bore size: 25 mm, Machined Bore with Keyway
  

  
- Bore style: Machined Bore with Keyway
  

  
- Brake air chamber volume when new: 10.310 cm³
  

  
- Brake air chamber volume when worn out: 23.300 cm³
  

  
- Brake facing edge color code: Green
  

  
- Brake facing effective area: 77 cm²
  

  
- Brake facing type: Low Coefficient
  

  
- Brake heat sink capacity: 71491 Joule
  

  
- Brake peak thermal input rate: 8.20 kW
  

  
- Brake response factor: 0.09
  

  
- Braking capability: Continuous Slip, Cyclic Dynamic, E-Stop, Holding
  

  
- CE certified: CE
  

  
- Enclosure: Open
  

  
- Engagement method: Air
  

  
- Finish: Black oxide
  

  
- Inlet size: 0.250 BSPT
  

  
- Length: 64.0 mm
  

  
- Materials of construction: Black oxide
  

  
- Max allowable pressure (bar): 8.3
  

  
- Max ambient temperature (°F): 150
  

  
- Max brake continuous thermal dissipation: 1.42 kW
  

  
- Max dynamic torque: 25 Nm
  

  
- Max operating pressure (bar): 6.0
  

  
- Max Speed: 1800 RPM
  

  
- Max static torque: 33 Nm
  

  
- Min ambient temperature (°F): 32
  

  
- Min engagement pressure (bar): 0.2
  

  
- Mounting style: Flange, Shaft
  

  
- Open or enclosed design: Open
  

  
- Outer Diameter: 151.0 mm
  

  
- Output shaft style: None
  

  
- Product features: Air Engaged, Shaft Mount, Single Caliper, Air Cooled, Straight Bore
  

  
- Release method: Spring
  

  
- RoHS compliant: RoHS
  

  
- RPM: 1800
  

  
- Shaft inertia: 800 kgcm²
  

  
- Unit height: 4.75 in
  

  
- Unit width: 7 in
  
## Product documents / software:

- [Cutaway](https://documents.mrosupply.com/product_documents/82/827821/SBrakeCutaway.gif)
- [PDF Cad Drawing](https://documents.mrosupply.com/product_documents/82/827821/827821s.pdf)
- [Technical Data Sheet](https://documents.mrosupply.com/product_documents/92/927507/21181.pdf)
- [Thermalgraph](https://documents.mrosupply.com/product_documents/82/827821/S450AThermalGraph.jpg)
- [User Manual](https://documents.mrosupply.com/product_documents/88/887021/21180.pdf)

## Product's reviews:
- None - all good
- 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.
- Great service - Provide great pricing, accurate order processing, and timely delivery. I recommend MRO for your electronic needs.