# Rex MAS2112 Mounted Adapter Spherical Pillow Block Bearing 1-3/4" Bore 44.45 mm 2000 Series Normal Duty Expansion - MROSupply.com

***Rex MAS2112 2000 series normal duty mounted adapter spherical pillow block bearing with 1-3/4 in (44.45 mm) bore. Cast iron expansion 2-bolt pillow block housing, single setscrew locking collar, spring-loaded heavy contact lip seal.***



## Product details:

- Catalog number: 10422869
- SKU: 503775
- Price: ***$1,377.99*** Each
- Quantity: This product has a minimum order quantity of 10.
This is the minimum order quantity available when purchasing this product.
- 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: 9.400 lb
- UPC: 698210828462
- 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 Seal
  

  
- Base Length (in): 7.13
  

  
- Base to centerline height (in): 2.125
  

  
- Base Width (in): 2.5
  

  
- 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): 1/2
  

  
- Bore Size (in): 1.75 in
  

  
- C dynamic load rating: 27820 lb
  

  
- Cage Material: Engineered Polymer
  

  
- Clearance: C3 STANDARD
  

  
- Co static load rating: 28700 lb
  

  
- Distance between bolt holes (in): 5.5
  

  
- Expansion Capability (in): 0.38
  

  
- Expansion lock plug: B224408A
  

  
- Expansion Lock Plug: B224408A
  

  
- Fixed expansion: EXP
  

  
- Fixed vs. Expansion: Expansion
  

  
- Foot Height (in): 1
  

  
- Grease fitting size: 1/8 NPT
  

  
- Grease Fitting Thread Size: 1/8 NPT
  

  
- Height: 4.50
  

  
- Housing Cast Face to Outermost Bearing Face (in): 0.69
  

  
- 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): 2.027
  

  
- Insert: MCS2112
  

  
- Length: 8.50
  

  
- Length Through Bore (in): 3.13
  

  
- Locking collar outside diameter (in): 2.58
  

  
- Locking device kit: SC5
  

  
- Locking Device Kit: SC5
  

  
- Locking Type: Single Set Collar
  

  
- Lubrication type: EXXON RONEX MP STD
  

  
- Lubrication Type: EXXON RONEX MP STD
  

  
- Max Speed: 2800 rpm
  

  
- Maximum Speed (RPM): 2800 rpm
  

  
- Maximum Temperature (C): 107
  

  
- Maximum Temperature (F): 225
  

  
- Misalignment Capability: ±2.0° Misalignment - Dynamic
  

  
- Misalignment Type: Dynamic
  

  
- Mounted clearance: C3 standard
  

  
- Net Weight: 9.40
  

  
- Overall Length (in): 7.13
  

  
- Overall width: 3.13
  

  
- Primary seal: Buna spring loaded lip seal
  

  
- Primary Seal: BUNA SPRING LOADED LIP SEAL
  

  
- Radial Dynamic Load Capacity (lb): 27820 lb
  

  
- Radial Static Load Capacity (lb): 28700 lb
  

  
- Retainer Material: Engineered Polymer
  

  
- Retainer type: Engineered polymer
  

  
- Seal kit: MS5
  

  
- Seal type: Heavy Contact Seal
  

  
- Series: Solid-housed Pillow Blocks
  

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

  
- Setscrew torque (in-lbs): 325
  

  
- Shaft locking: Single set collar
  

  
- Size code: 5
  

  
- Size Code: 5
  

  
- Slot Length (in): 0.88
  

  
- Unit of dimension: in
  

  
- Unit of Dimension: IN
  

  
- 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
  

  
- Volume: 0.58
  

  
- Volume unit: GLL
  

  
- Volume Unit: GLL
  

  
- Weight unit: LB
  

  
- Width: 3.50
  
## Product documents / software:

- [Rex 2000, 3000, 5000, 9000 Series Roller Bearings](https://documents.mrosupply.com/product_documents/BM/BMT52111/000-Series-Roller-Bearings_Installation-Manual_PK8BJAF.pdf)

## Product's reviews:
- Great service - easy to do business with, competitive pricing, excellent service and quick shipping.
- Jose - Really good customer service
- Falk ltg - Fast convenient shopping. Highly recommend. Prompt shipping. 👍🏼
- Good - Good




## 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.