# Nexen 818800 Spring Engaged Shaft Mount Brake, 0.5 in Bore, 360 in-lb Torque, 1800 RPM - MROSupply.com

***Nexen 818800 spring engaged shaft mount brake with QD taper bushing bore (0.500 in to 1.000 in, customer bushing required). Open design with black oxide finish, rated 360 in-lb static torque at 1800 RPM max speed. Suitable for cyclic dynamic, e-stop, and holding applications. Air release at 72 psi minimum, 0.125 NPT inlet. CE and RoHS compliant.***



## Product details:

- Catalog number: 818800
- SKU: 535027
- Price: ***$1,015.59*** 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: 12.000 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: Anti-Rotation Holes, Optional Torque Pin Bracket
  

  
- Approximate brake facing life: 115 hphr
  

  
- Backlash: 37 ArcMin, Additional 3 ArcMin With Housing Anti-Rotation Torque Pin Bracket 819900
  

  
- Bore details: QD Type JA
  

  
- Bore size: 0.500 in to 1.000 in Customer Taper Bushing Required
  

  
- Bore style: Customer Taper Bushing Required
  

  
- Brake air chamber volume when new: 2.100 in³
  

  
- Brake air chamber volume when worn out: 0.900 in³
  

  
- Brake facing edge color code: Purple
  

  
- Brake facing effective area: 11.9 in²
  

  
- Brake facing type: High Coefficient
  

  
- Brake heat sink capacity: 30000 ftlb
  

  
- Brake peak thermal input rate: 11.00 hp
  

  
- Brake response factor: 0.09
  

  
- Brake torque: 360 inlb
  

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

  
- CE certified: CE
  

  
- Enclosure: Open
  

  
- Engagement method: Spring
  

  
- Finish: Black oxide
  

  
- Inlet size: 0.125 NPT
  

  
- Length: 3.75 in
  

  
- Materials of construction: Black oxide
  

  
- Max allowable pressure (psi): 120
  

  
- Max ambient temperature (°F): 150
  

  
- Max bore size: 25.4 mm
  

  
- Max brake continuous thermal dissipation: 0.52 hp
  

  
- Max Speed: 1800 RPM
  

  
- Max static brake torque: 360 inlb
  

  
- Min ambient temperature (°F): 32
  

  
- Min bore size: 12.7 mm
  

  
- Min release pressure (bar): 4.9644 bar
  

  
- Min release pressure (psi): 72
  

  
- Mounting style: Shaft
  

  
- Open or enclosed design: Open
  

  
- Outer Diameter: 5.94 in
  

  
- Output shaft style: None
  

  
- Product features: Spring Engaged, Shaft Mount, Taper Bore
  

  
- Release method: Air
  

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

  
- RoHS compliant: RoHS
  

  
- RPM: 1800
  

  
- Shaft inertia: 4.74 lbin²
  

  
- Unit height: 7 in
  

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

- [Cutaway](https://documents.mrosupply.com/product_documents/81/818800/TSEBrakeCutaway.gif)
- [PDF Cad Drawing](https://documents.mrosupply.com/product_documents/81/818800/818800s.pdf)
- [Thermalgraph](https://documents.mrosupply.com/product_documents/81/818800/TSE450ThermalGraph.jpg)
- [Torquegraph](https://documents.mrosupply.com/product_documents/81/818800/TSE450-8HiTorqueGraph.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.