# Rex ZAS2303 Adapter Spherical Pillow Block Bearing 3-3/16" Bore 80.96 mm 2000 Series Normal Duty - MROSupply.com

***Rex ZAS2303 adapter spherical pillow block bearing with 3-3/16 in (80.96 mm) bore, 2000 series normal duty, cast iron expansion 2-bolt pillow block housing, single setscrew locking collar, and standard clearance seal.***



## Product details:

- Catalog number: 10424893
- SKU: 507200
- Price: ***$1,586.09*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Rexnord](https://www.mrosupply.com/brands/rexnord/)
- Category: 
    - [2-Bolt Pillow Block Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/pillow-block-bearings/2-bolt-pillow-block-bearings/)
    - [Pillow Block Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/pillow-block-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: 41.800 lb
- UPC: 698210830328
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product attributes;

  
- Ability to Relubricate: Yes
  

  
- Available Seal Type: K Light Contact Lip Seal; M Spring Loaded Heavy Contact Lip Seal (Buna and Viton); Z Clearance Seal; G Triple Lip
  

  
- Base Length (in): 13
  

  
- Base to centerline height (in): 3.75
  

  
- Base Width (in): 3.44
  

  
- Bearing Brand: REX ROLLER BEARING
  

  
- Bearing housing: Pillow block 2 bolt RB
  

  
- Bearing housing material: Cast iron
  

  
- Bearing Type: Spherical roller brg
  

  
- Bolt Size (in): 7/8
  

  
- Bore Size (in): 3.1875 in
  

  
- C dynamic load rating: 84330 lb
  

  
- Cage Material: Engineered Polymer
  

  
- Clearance: C3 STANDARD
  

  
- Co static load rating: 90700 lb
  

  
- Distance between bolt holes (in): 10
  

  
- Expansion Capability (in): 0.38
  

  
- Expansion lock plug: BS225728A
  

  
- Expansion Lock Plug: BS225728A
  

  
- Fixed expansion: EXP
  

  
- Fixed vs. Expansion: Expansion
  

  
- Foot Height (in): 2.25
  

  
- Grease fitting size: 1/8 NPT
  

  
- Grease Fitting Thread Size: 1/8 NPT
  

  
- Height: 7.88
  

  
- Housing Cast Face to Outermost Bearing Face (in): 0.94
  

  
- Housing coating: Powder coated
  

  
- Housing Coating: POWDER COATED
  

  
- Housing Color: Black
  

  
- Housing Construction: Solid
  

  
- Housing Material: Cast Iron
  

  
- Housing Style: Pillow Block
  

  
- Housing Type: Pillow Block, Two Bolt
  

  
- Inner Ring Outside Diameter (in): 3.975
  

  
- Insert: ZCS2303
  

  
- Length: 13.50
  

  
- Length Through Bore (in): 4.38
  

  
- Locking collar outside diameter (in): 4.91
  

  
- Locking device kit: SC10
  

  
- Locking Device Kit: SC10
  

  
- Locking Type: Single Set Collar
  

  
- Lubrication type: EXXON RONEX MP STD
  

  
- Lubrication Type: EXXON RONEX MP STD
  

  
- Max Speed: 2400 rpm
  

  
- Maximum Speed (RPM): 2400 rpm
  

  
- Maximum Temperature (C): 107
  

  
- Maximum Temperature (F): 225
  

  
- Misalignment Capability: ±2.0° Misalignment - Dynamic
  

  
- Misalignment Type: Dynamic
  

  
- Mounted clearance: C3 standard
  

  
- Net Weight: 41.80
  

  
- Overall Length (in): 13
  

  
- Overall width: 4.38
  

  
- Primary seal: Steel clearance seal
  

  
- Primary Seal: STEEL CLEARANCE SEAL
  

  
- Radial Dynamic Load Capacity (lb): 84330 lb
  

  
- Radial Static Load Capacity (lb): 90700 lb
  

  
- Retainer Material: Engineered Polymer
  

  
- Retainer type: Engineered polymer
  

  
- Seal kit: ZS10
  

  
- Seal type: Clearance Seal
  

  
- Series: Solid-housed Pillow Blocks
  

  
- Service instructions: BR3-001 REX 2, 3, 5, 6, 9000
  

  
- Setscrew torque (in-lbs): 680
  

  
- Shaft locking: Single set collar
  

  
- Size code: 10
  

  
- Size Code: 10
  

  
- Slot Length (in): 1.63
  

  
- Unit of dimension: in
  

  
- Unit of Dimension: IN
  

  
- Vibration frequency fundamental train: 0.0073 cps
  

  
- Vibration Frequency Fundamental Train: 0.0073 cps
  

  
- Vibration frequency inner ring defect: 0.1784 cps
  

  
- Vibration Frequency Inner Ring Defect: 0.1784 cps
  

  
- Vibration frequency outer ring defect: 0.1383 cps
  

  
- Vibration Frequency Outer Ring Defect: 0.1383 cps
  

  
- Vibration frequency roller spin: 0.0628 cps
  

  
- Vibration Frequency Roller Spin: 0.0628 cps
  

  
- Volume: 2.301
  

  
- Volume unit: GLL
  

  
- Volume Unit: GLL
  

  
- Weight unit: LB
  

  
- Width: 5.00
  


## Product's reviews:
- Good - Good
- Great service-fast shipping - Awesome service. I would highly recommend doing business with MRO! Price was cheapest anywhere
- Mechanic - Great service and fast shipping and great quality of product.
- Rexnord idler pulley - Great pricing and fast shipping A +++++++++




## 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.