# Nexen 845500 Air Engaged Drum Brake - Open, Fixed Top, 3750 inlb Max Static Torque - MROSupply.com

***Nexen 845500 Air Engaged Drum Brake with open design and fixed top housing. Features black oxide finish, spring release, and standard coefficient brake facing. Rated for 3750 inlb max static torque with continuous slip, cyclic dynamic, e-stop, and holding braking capability. Includes 0.125 NPT inlet and 17.25 in length.***



## Product details:

- Catalog number: 845500
- SKU: 534231
- Price: ***$1,560.05*** 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: 28.560 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: Slot for Pin, No Foot Mounting Bracket Available
  

  
- Approximate brake facing life: 1714 hphr
  

  
- Brake air chamber volume when new: 6.283 in³
  

  
- Brake air chamber volume when worn out: 12.566 in³
  

  
- Brake facing edge color code: Red
  

  
- Brake facing effective area: 4.4 in²
  

  
- Brake facing type: Standard coefficient
  

  
- Brake heat sink capacity: 278000 ftlb
  

  
- Brake peak thermal input rate: 4.00 hp
  

  
- Brake torque: 3750 inlb
  

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

  
- CE certified: CE
  

  
- Enclosure: Open
  

  
- Engagement method: Air
  

  
- Finish: Black oxide
  

  
- Housing type: Fixed Top
  

  
- Inlet size: 0.125 NPT
  

  
- Length: 17.25 in
  

  
- Materials of construction: Black oxide
  

  
- Max allowable pressure (psi): 120
  

  
- Max ambient temperature (°F): 150
  

  
- Max brake continuous thermal dissipation: 3.00 hp
  

  
- Max operating pressure (psi): 80
  

  
- Max static brake torque: 3750 inlb
  

  
- Min ambient temperature (°F): 32
  

  
- Min engagement pressure (psi): 2
  

  
- Open or enclosed design: Open
  

  
- Product features: Air Engaged, Hinge Top, Shoe Only, Drum Required
  

  
- Release method: Spring
  

  
- RoHS compliant: RoHS
  

  
- Shaft inertia: 465.1 lbin²
  

  
- Unit height: 9.5 in
  

  
- Unit width: 17.25 in
  
## Product documents / software:

- [Cutaway](https://documents.mrosupply.com/product_documents/84/845500/KBrakeCutaway.gif)
- [PDF Cad Drawing](https://documents.mrosupply.com/product_documents/84/845500/845500s.pdf)
- [Thermalgraph](https://documents.mrosupply.com/product_documents/84/845500/12KThermalGraph.jpg)
- [Torquegraph](https://documents.mrosupply.com/product_documents/84/845500/12KStTorqueGraph.jpg)
- [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.
- 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.
- None - all good