# Nexen 827804 Air Engaged Shaft Mount Brake, 25 mm Bore, 77 Nm Torque, 1800 RPM - MROSupply.com

***Nexen 827804 is an air engaged shaft mount brake with a 25 mm straight machined bore with keyway. It delivers 77 Nm of static brake torque and operates at speeds up to 1800 RPM. The open design features a black oxide finish and a high coefficient brake facing. This brake is suitable for cyclic dynamic, e-stop, and holding applications.***



## Product details:

- Catalog number: 827804
- SKU: 533749
- Price: ***$2,026.88*** 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;

  
- Anti rotation style: Flange, Optional Torque Pin Bracket
  

  
- Approximate brake facing life: 87 kWhr
  

  
- Approximate engagement response time: 70 ms
  

  
- 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: Purple
  

  
- Brake facing effective area: 77 cm²
  

  
- Brake facing type: High Coefficient
  

  
- Brake heat sink capacity: 41000 Joule
  

  
- Brake peak thermal input rate: 8.20 kW
  

  
- Brake response factor: 0.09
  

  
- Brake torque: 77 Nm
  

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

  
- CE certified: CE
  

  
- Enclosure: Open
  

  
- Engagement method: Air
  

  
- Finish: Black oxide
  

  
- Inlet size: 0.250 BSPT
  

  
- Input keyway: 8W x 7H x 63.5L mm
  

  
- Input shaft securement: 3, M6 x 1.0 , Set Screws @ 120°
  

  
- Length: 63.6 mm
  

  
- Materials of construction: Black oxide
  

  
- Max allowable pressure (bar): 8.3
  

  
- Max ambient temperature (°C): 66
  

  
- Max brake continuous thermal dissipation: 0.38 kW
  

  
- Max operating pressure (bar): 6.0
  

  
- Max Speed: 1800 RPM
  

  
- Max static brake torque: 77 Nm
  

  
- Min ambient temperature (°C): 0
  

  
- Min engagement pressure (bar): 0.2
  

  
- Mounting style: Flange, Shaft
  

  
- Open or enclosed design: Open
  

  
- Outer Diameter: 150.9 mm
  

  
- Output shaft style: None
  

  
- Product features: Air Engaged, Metric, Shaft Mount, Straight Bore
  

  
- Release method: Spring
  

  
- RoHS compliant: RoHS
  

  
- RPM: 1800
  

  
- Shaft inertia: 14 kgcm²
  

  
- Unit height: 4.75 in
  

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

- [Cutaway](https://documents.mrosupply.com/product_documents/82/827804/SBrakeCutaway.gif)
- [PDF Cad Drawing](https://documents.mrosupply.com/product_documents/82/827804/827804s.pdf)
- [Thermalgraph](https://documents.mrosupply.com/product_documents/82/827804/S450ThermalGraph.jpg)
- [Torquegraph](https://documents.mrosupply.com/product_documents/82/827804/S450HiTorqueGraph.jpg)
- [User Manual](https://documents.mrosupply.com/product_documents/88/887021/21180.pdf)

## 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.