# Nexen 820604 Air Engaged Tension Brake - Shaft Mount, 0.5 in Bore, 1800 RPM, 840 in-lb Max Static Torque - MROSupply.com

***Nexen 820604 air engaged tension brake with shaft mount design and 0.5 in bore requiring customer taper bushing (QD Type SH). Open, single caliper brake delivers 840 in-lb max static torque and 714 in-lb max dynamic torque at 1800 RPM. Features black oxide finish, 0.250 NPT inlet, CE and RoHS compliance. Suitable for continuous slip, cyclic dynamic, e-stop, and holding applications.***



## Product details:

- Catalog number: 820604
- SKU: 533174
- Price: ***$991.87*** 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: 14.000 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: 572 hphr
  

  
- Bore details: QD Type SH
  

  
- Bore size: 0.500 to 1.375 in Customer Taper Bushing Required
  

  
- Bore style: Customer Taper Bushing Required
  

  
- Brake air chamber volume when new: 1.024 in³
  

  
- Brake air chamber volume when worn out: 2.108 in³
  

  
- Brake facing edge color code: Red
  

  
- Brake facing effective area: 18.6 in²
  

  
- Brake facing type: Standard coefficient
  

  
- Brake heat sink capacity: 108202 ftlb
  

  
- Brake peak thermal input rate: 17.00 hp
  

  
- Brake response factor: 0.124
  

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

  
- CE certified: CE
  

  
- Enclosure: Open
  

  
- Engagement method: Air
  

  
- Finish: Black oxide
  

  
- Inlet size: 0.250 NPT
  

  
- Length: 3.21 in
  

  
- Materials of construction: Black oxide
  

  
- Max allowable pressure (psi): 120
  

  
- Max ambient temperature (°F): 150
  

  
- Max bore size: 34.925 mm
  

  
- Max brake continuous thermal dissipation: 4.96 hp
  

  
- Max dynamic torque: 714 inlb
  

  
- Max operating pressure (psi): 80
  

  
- Max Speed: 1800 RPM
  

  
- Max static torque: 840 inlb
  

  
- Min ambient temperature (°F): 32
  

  
- Min bore size: 12.7 mm
  

  
- Min engagement pressure (psi): 3
  

  
- Mounting style: Flange, Shaft
  

  
- Open or enclosed design: Open
  

  
- Outer Diameter: 7.19 in
  

  
- Output shaft style: None
  

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

  
- Release method: Spring
  

  
- Restrictions: This Brake Should Not Be Flange Mounted Or May Be Damaged
  

  
- RoHS compliant: RoHS
  

  
- RPM: 1800
  

  
- Shaft inertia: 18.68 lbin²
  

  
- Unit height: 5.5 in
  

  
- Unit width: 10 in
  
## Product documents / software:

- [PDF Cad Drawing](https://documents.mrosupply.com/product_documents/82/820604/820604s.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.
- 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.