# Nexen 835421 Air Engaged Modular Multi-Caliper Tension Brake - Shaft Mount, 1.625 in Bore, 2400 RPM - MROSupply.com

***Nexen 835421 air engaged modular multi-caliper tension brake with shaft mount design and 1.625 in machined bore with keyway. Features 14 in disc diameter, 7.26 lbft² shaft inertia, and maximum speed of 2400 RPM. Open design with blue powder paint finish supports continuous slip, e-stop, and holding braking capabilities. Up to seven calipers (sold separately) can be mounted for torque up to 9086 inlb.***



## Product details:

- Catalog number: 835421
- SKU: 535294
- Price: ***$1,905.00*** 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: 87.000 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: Multiple Calipers, Up to 7 Calipers, Sold Separately
  

  
- Anti rotation style: Standoff Studs
  

  
- Body length: 7.00 in
  

  
- Bore details: Straight
  

  
- Bore size: 1.625 in, Machined Bore with Keyway
  

  
- Bore style: Machined Bore with Keyway
  

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

  
- CE certified: CE
  

  
- Direction of rotation: Clockwise
  

  
- Disc diameter: 14 in
  

  
- Disc thickness: 2.06 in
  

  
- Enclosure: Open
  

  
- Engagement method: Air
  

  
- Finish: Blue Powder Paint
  

  
- Length: 10.74 in, With Guard 8.50 Without
  

  
- Materials of construction: Blue Powder Paint
  

  
- Max ambient temperature (°F): 150
  

  
- Max brake continuous thermal dissipation: 23.30 hp
  

  
- Max dynamic torque low coefficient: 4809 inlb
  

  
- Max dynamic torque standard coefficient: 9086 inlb
  

  
- Max number of calipers: 7
  

  
- Max operating pressure (psi): 85
  

  
- Max Speed: 2400 RPM
  

  
- Max torque with 1 low coefficient caliper (psi): 687 inlb, @ 80
  

  
- Max torque with 1 mid coefficient caliper (psi): 1118 inlb, @ 80 psi
  

  
- Max torque with 1 standard coefficient caliper (psi): 1118 inlb, @ 80
  

  
- Max torque with 1 ultra-low coefficient caliper (psi): 687 inlb, @ 80
  

  
- Min ambient temperature (°F): 32
  

  
- Min engagement pressure (psi): 1
  

  
- Min torque with 1 low coefficient caliper (psi): 9 inlb, @ 1
  

  
- Min torque with 1 mid coefficient caliper (psi): 14 inlb, @ 1 psi
  

  
- Min torque with 1 standard coefficient caliper (psi): 14 inlb, @ 1
  

  
- Min torque with 1 ultra-low coefficient caliper (psi): 9 inlb, @ 1
  

  
- Mounting style: Shaft
  

  
- Open or enclosed design: Open
  

  
- Outer Diameter: 22.06 in, With Guard 20.75 Without
  

  
- Output shaft style: None
  

  
- Product features: Air Engaged, Shaft Mount, Multi-Caliper, Air Cooled, Heavy Duty, Rotor-Hub Only
  

  
- Release method: N/A
  

  
- Restrictions: Disc Counter Rotation Reduces Thermal Performance By 10% For 0 - 500 RPM And 25% Above 500 RPM
  

  
- RoHS compliant: RoHS
  

  
- RPM: 2400
  

  
- Shaft inertia: 7.26 lbft²
  

  
- Unit height: 10.37 in
  

  
- Unit width: 18.5 in
  
## Product documents / software:

- [Catalog Pages](https://documents.mrosupply.com/product_documents/83/835421/XTB14.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.