# Rex ZBR21120540 Round Flange Cartridge Bracket 2000 Series Normal Duty Spherical Roller Bearing - MROSupply.com

***Rex ZBR21120540 2000 series normal duty round flange cartridge bracket for spherical roller bearings. Cast iron housing with standard Z clearance seal, designed for use with Rex mounted bearing inserts. Compact flanged mounting for cartridge-style bearing support.***



## Product details:

- Catalog number: 10434243
- SKU: 507708
- Price: ***$1,862.71*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Rexnord](https://www.mrosupply.com/brands/rexnord/)
- Category: 
    - [Piloted Flange](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/flanged-mounted-bearings/piloted-flange/)
    - [Flanged Mounted Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/flanged-mounted-bearings/)
    - [Mounted Roller Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/)
    - [Mounted Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 0.008 lb
- UPC: 698210912253
- Technicall support: contact supplier for technical support on 800-626-2120


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- Available end cap: DTC5
  

  
- Available End Cap: DTC5
  

  
- Bearing Brand: REX ROLLER BEARING
  

  
- Bore size (in): 1.75 in
  

  
- Bore Size (in): 1.75 in
  

  
- Cage Material: Engineered Polymer
  

  
- Clearance: C4 INCREASED
  

  
- Fixed vs. Expansion: Fixed
  

  
- Grease Fitting Thread Size: 1/8 NPT
  

  
- Housing coating: Powder coated
  

  
- Housing Coating: POWDER COATED
  

  
- Housing construction: Solid
  

  
- Housing Construction: Solid
  

  
- Housing material: Cast iron
  

  
- Housing Material: Cast Iron
  

  
- Housing style: Flange block
  

  
- Housing Style: Flange Block
  

  
- Housing type: Flange, Cartridge
  

  
- Housing Type: Flange, Cartridge
  

  
- Insert: 2112U
  

  
- Locking device kit: SC5
  

  
- Locking Device Kit: SC5
  

  
- Locking Type: Single Set Collar
  

  
- Lubrication type: Preservative only - no grease
  

  
- Lubrication Type: PRESERVATIVE ONLY - NO GREASE
  

  
- Maximum Speed (RPM): 4450 rpm
  

  
- Net Weight: 8.10
  

  
- Primary seal: Steel clearance seal
  

  
- Primary Seal: STEEL CLEARANCE SEAL
  

  
- Radial Dynamic Load Capacity (lb): 27820 lb
  

  
- Radial Static Load Capacity (lb): 28700 lb
  

  
- Retainer material: Engineered Polymer
  

  
- Retainer Material: Engineered Polymer
  

  
- Series: Flanged Cartridge Blocks
  

  
- Size code: 5
  

  
- Size Code: 5
  

  
- Special lube percent: 0% fill
  

  
- Special Lube Percent: 0% FILL
  

  
- Vibration frequency fundamental train: 0.0069 cps
  

  
- Vibration Frequency Fundamental Train: 0.0069 cps
  

  
- Vibration frequency inner ring defect: 0.1361 cps
  

  
- Vibration Frequency Inner Ring Defect: 0.1361 cps
  

  
- Vibration frequency outer ring defect: 0.0972 cps
  

  
- Vibration Frequency Outer Ring Defect: 0.0972 cps
  

  
- Vibration frequency roller spin: 0.0466 cps
  

  
- Vibration Frequency Roller Spin: 0.0466 cps
  

  
- Weight unit: LB
  


## Product's reviews:
- Excellent - very fast, very good!!! A+++
- Good - Good
- Falk ltg - Fast convenient shopping. Highly recommend. Prompt shipping. 👍🏼
- Great service-fast shipping - Awesome service. I would highly recommend doing business with MRO! Price was cheapest anywhere




## FAQ:

- How do I choose the right type of bearing for my application?: Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints.
For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials.
In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.