# Rex ZA220778 2-7/16" 2000 Series Normal Duty Pillow Block Bearing, 2-Bolt, Fixed, Single Setscrew Locking Collar, Clearance Seal - MROSupply.com

***Rex ZA220778 2000 series normal duty mounted spherical roller bearing in a fixed cast iron 2-bolt pillow block housing. Features a 2-7/16 in (61.91 mm) bore, single setscrew locking collar, and standard clearance seal with steel retainer. Suitable for moderate load applications requiring self-alignment.***



## Product details:

- Catalog number: 10440305
- SKU: 507465
- Price: ***$1,575.66*** 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: 15.700 lb
- UPC: 793699333404
- 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): 9.13
  

  
- Base to centerline height (in): 2.75
  

  
- Base Width (in): 2.69
  

  
- 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): 5/8
  

  
- Bore Size (in): 2.4375 in
  

  
- C dynamic load rating: 43240 lb
  

  
- Cage Material: Steel
  

  
- Clearance: C3 STANDARD
  

  
- Co static load rating: 53500 lb
  

  
- Distance between bolt holes (in): 7.13
  

  
- Fixed expansion: Fixed
  

  
- Fixed vs. Expansion: Fixed
  

  
- Foot Height (in): 1.63
  

  
- Grease fitting size: 1/8 NPT
  

  
- Grease Fitting Thread Size: 1/8 NPT
  

  
- Height: 5.50
  

  
- Housing Cast Face to Outermost Bearing Face (in): 0.88
  

  
- 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): 2.901
  

  
- Insert: 2207UR78
  

  
- Length: 9.56
  

  
- Length Through Bore (in): 3.5
  

  
- Locking collar outside diameter (in): 3.56
  

  
- Locking device kit: SC8
  

  
- Locking Device Kit: SC8
  

  
- Locking Type: Single Set Collar
  

  
- Lubrication type: EXXON RONEX MP STD
  

  
- Lubrication Type: EXXON RONEX MP STD
  

  
- Max Speed: 3300 rpm
  

  
- Maximum Speed (RPM): 3300 rpm
  

  
- Maximum Temperature (C): 107
  

  
- Maximum Temperature (F): 225
  

  
- Microlock kit: ML3
  

  
- Misalignment Capability: ±2.0° Misalignment - Dynamic
  

  
- Misalignment Type: Dynamic
  

  
- Mounted clearance: C3 standard
  

  
- Net Weight: 15.70
  

  
- Overall Length (in): 9.13
  

  
- Overall width: 3.5
  

  
- Primary seal: Steel clearance seal
  

  
- Primary Seal: STEEL CLEARANCE SEAL
  

  
- Radial Dynamic Load Capacity (lb): 43240 lb
  

  
- Radial Static Load Capacity (lb): 53500 lb
  

  
- Retainer Material: Steel
  

  
- Retainer type: Steel
  

  
- Seal kit: ZS8
  

  
- 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: 8
  

  
- Size Code: 8
  

  
- Slot Length (in): 0.94
  

  
- Threaded cover kit: TC8
  

  
- Unit of dimension: in
  

  
- Unit of Dimension: IN
  

  
- Vibration frequency fundamental train: 0.0072 cps
  

  
- Vibration Frequency Fundamental Train: 0.0072 cps
  

  
- Vibration frequency inner ring defect: 0.1791 cps
  

  
- Vibration Frequency Inner Ring Defect: 0.1791 cps
  

  
- Vibration frequency outer ring defect: 0.1376 cps
  

  
- Vibration Frequency Outer Ring Defect: 0.1376 cps
  

  
- Vibration frequency roller spin: 0.0607 cps
  

  
- Vibration Frequency Roller Spin: 0.0607 cps
  

  
- Volume: 0.911
  

  
- Volume unit: GLL
  

  
- Volume Unit: GLL
  

  
- Weight unit: LB
  

  
- Width: 4.00
  
## 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)
## Alternate products to `Rex ZA220778 2-7/16" 2000 Series Normal Duty Pillow Block Bearing, 2-Bolt, Fixed, Single Setscrew Locking Collar, Clearance Seal - MROSupply.com`:
- [Dodge 070351 P2B-S2-207LE two-bolt pillow block bearing with 2-7/16" bore, set screw locking, spherical roller insert, cast iron housing, expansion (float) design, labyrinth seal, 2250 RPM max speed, black oxide finish, bolt centerline range 6-15/16" to 7-5/16", shaft centerline height 2-3/4".](https://www.mrosupply.com/products/128915/as-markdown/)
- [Dodge 070305 P2B-S2-207RE two-bolt pillow block bearing with 2-7/16" bore, S-2000 spherical roller insert, set screw locking, and expansion (float) capability. Cast iron housing with black oxide finish, Trident triple-lip seal, and 1740 rpm maximum speed. Bolt centerline range 6-15/16" to 7-5/16", shaft centerline height 2-3/4". Sensor-ready design for industrial conveyor and heavy-duty applications.](https://www.mrosupply.com/products/133498/as-markdown/)
- [Moline 19121207 2-7/16" M2000 Spherical Roller Bearing, Expansion, 2-Bolt Pillow Block. Standard contact seal. Cast iron housing for industrial conveying and air handling applications.](https://www.mrosupply.com/products/2491016/as-markdown/)
- [Rex ZAS2207 adapter spherical pillow block bearing, 2000 series normal duty, 2-7/16 in (61.91 mm) bore, cast iron expansion 2-bolt pillow block housing, single setscrew locking collar, standard clearance seal.](https://www.mrosupply.com/products/507158/as-markdown/)
- [Link-Belt PEB22439HK54 (mfg part 10424532) is a 2-bolt expansion pillow block spherical roller bearing with a 2-7/16" bore, adapter sleeve mount, and cast iron housing. It features a steel clearance seal, C4 internal clearance, and a powder-coated housing. Designed for heavy-duty industrial applications requiring axial float.](https://www.mrosupply.com/products/495912/as-markdown/)
- [Rex MAS220778 2000 series normal duty mounted adapter spherical pillow block bearing with a 2-7/16 in (61.91 mm) bore. Features a cast iron expansion 2-bolt pillow block housing, single setscrew locking collar, and spring-loaded heavy contact lip seal with steel retainers.](https://www.mrosupply.com/products/503802/as-markdown/)
- [Rex ZAS220778 2000 series adapter spherical pillow block bearing with 2-7/16" bore. Expansion unit features cast iron 2-bolt pillow block housing, single setscrew locking collar, clearance seal, and steel retainer. Designed for normal duty applications.](https://www.mrosupply.com/products/507170/as-markdown/)

## Product's reviews:
- Parts ordered - We were very happy with the parts we ordered.
- Excellent - very fast, very good!!! A+++
- Good - Good
- Falk ltg - Fast convenient shopping. Highly recommend. Prompt shipping. 👍🏼




## 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.