# Rex MAFS5207 2-7/16" Mounted Spherical Roller Bearing, Expansion Cast Iron 2-Bolt Pillow Block, Double Setscrew Locking Collar, Spring Loaded Heavy Contact Seal - MROSupply.com

***Rex MAFS5207 2-7/16" (61.91 mm) bore mounted spherical roller bearing with expansion cast iron 2-bolt pillow block housing. Features double setscrew locking collar and spring-loaded heavy contact seal. 5000 series heavy duty bearing for high-load applications requiring self-alignment and thermal expansion accommodation.***



## Product details:

- Catalog number: 10411830
- SKU: 503717
- Price: ***$533.88*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Rexnord](https://www.mrosupply.com/brands/rexnord/)
- Category: 
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 32.500 lb
- UPC: 793699725025
- 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 end cap: DTC8
  

  
- Available End Cap: DTC8
  

  
- 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): 11.13
  

  
- Base to centerline height (in): 3 1/4 in
  

  
- Base to Centerline Height (in): 3 1/4 in
  

  
- Base Width (in): 3.13
  

  
- Bearing Brand: REX ROLLER BEARING
  

  
- Bolt Size (in): 2.4375 in
  

  
- Bore length (in): 4 3/8 in
  

  
- Bore Length (in): 4 3/8 in
  

  
- Bore size (in): 2.4375 in
  

  
- Bore Size (in): 2.4375 in
  

  
- Cage Material: Engineered Polymer
  

  
- Clearance: C3 STANDARD
  

  
- Distance Between Bolt Holes [Max] (in): 9 5/8 in
  

  
- Distance Between Bolt Holes [Min] (in): 8 5/8 in
  

  
- Distance from housing cast face to inner ring long hub face (in): 7/8 in
  

  
- Distance from Housing Cast Face to Inner Ring Long Hub Face (in): 7/8 in
  

  
- Expansion Capability (in): 0.38
  

  
- Expansion lock plug: 105-95008-11
  

  
- Expansion Lock Plug: 105-95008-11
  

  
- Fixed vs. Expansion: Expansion
  

  
- Foot Height (in): 1.25
  

  
- Grease Fitting Thread Size: 1/8 NPT
  

  
- Height: 7.88
  

  
- 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 Construction: Solid
  

  
- Housing material: Cast iron
  

  
- Housing Material: Cast Iron
  

  
- Housing style: Pillow block
  

  
- Housing Style: Pillow Block
  

  
- Housing type: Pillow Block, Two Bolt, SAF Style
  

  
- Housing Type: Pillow Block, Two Bolt, SAF Style
  

  
- Inner Ring Outside Diameter (in): 2.901
  

  
- Insert: 5207U
  

  
- Length: 13.50
  

  
- Length Through Bore (in): 4.38
  

  
- Locking collar outside diameter (in): 3 9/16 in
  

  
- Locking Collar Outside Diameter (in): 3 9/16 in
  

  
- Locking device kit: SC8 QTY 2
  

  
- Locking Device Kit: SC8 QTY 2
  

  
- Locking Type: Double Set Collar
  

  
- Lubrication type: EXXON RONEX MP STD
  

  
- Lubrication Type: EXXON RONEX MP STD
  

  
- Max distance between bolt holes (in): 9 5/8 in
  

  
- Maximum Speed (RPM): 2000 rpm
  

  
- Maximum Temperature (C): 107 C
  

  
- Maximum Temperature (F): 225 F
  

  
- Microlock kit: ML3
  

  
- Microlock Kit: ML3
  

  
- Min distance between bolt holes (in): 8 5/8 in
  

  
- Misalignment Capability: ±2.0° Misalignment - Dynamic
  

  
- Misalignment Type: Dynamic
  

  
- Mounting bolt hole slot length (in): 1 3/16 in
  

  
- Mounting Bolt Hole Slot Length (in): 1 3/16 in
  

  
- Mounting bolt size (in): 5/8 in
  

  
- Mounting Bolt Size (in): 5/8 in
  

  
- Mounting pad height (in): 1 1/4 in
  

  
- Mounting Pad Height (in): 1 1/4 in
  

  
- Mounting pad length (in): 11.125 in
  

  
- Mounting Pad Length (in): 11.125 in
  

  
- Mounting pad width (in): 3 1/8 in
  

  
- Mounting Pad Width (in): 3 1/8 in
  

  
- Net Weight: 32.50
  

  
- Overall Length (in): 11.13
  

  
- Overall width: 4.38
  

  
- Primary seal: Buna spring loaded lip seal
  

  
- Primary Seal: BUNA SPRING LOADED LIP SEAL
  

  
- Radial Dynamic Load Capacity (lb): 43240 lb
  

  
- Radial Static Load Capacity (lb): 53500 lb
  

  
- Retainer material: Engineered Polymer
  

  
- Retainer Material: Engineered Polymer
  

  
- Rolling element: Spherical Roller
  

  
- Seal kit: MS8
  

  
- Seal Kit: MS8
  

  
- Seal type: Heavy Contact Seal
  

  
- Seal Type: Heavy Contact Seal
  

  
- Series: Solid-housed Pillow Blocks
  

  
- Setscrew torque (in-lbs): 680 in/lbs
  

  
- Setscrew Torque (in-lbs): 680 in/lbs
  

  
- Size code: 8
  

  
- Size Code: 8
  

  
- 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: 2.301
  

  
- Volume unit: GLL
  

  
- Volume Unit: GLL
  

  
- Weight unit: LB
  

  
- Width: 5.00
  
## 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 MAFS5207 2-7/16" Mounted Spherical Roller Bearing, Expansion Cast Iron 2-Bolt Pillow Block, Double Setscrew Locking Collar, Spring Loaded Heavy Contact Seal - MROSupply.com`:
- [Rex MB2315S 2000 series normal duty round flange cartridge bearing with 3-15/16 in (100.01 mm) bore. Cast iron housing with spring-loaded heavy contact lip (M) seal and expansion configuration. Spherical roller bearing unit for self-aligning moderate load applications.](https://www.mrosupply.com/products/504574/as-markdown/)
- [Link-Belt LER102 10411807 LER Type multi-labyrinth seal ring for mounted bearing housings. Constructed from cast iron, this seal ring provides effective labyrinth sealing for industrial applications. Designed as a replacement component for Link-Belt mounted bearing units.](https://www.mrosupply.com/products/847166/as-markdown/)
- [Rexnord MA2215 Rex 2000 series normal duty mounted spherical roller bearing, 2-15/16 in (74.61 mm) bore, cast iron fixed 2-bolt pillow block housing, single setscrew locking collar, spring-loaded heavy contact lip seal for moderate load applications.](https://www.mrosupply.com/products/504041/as-markdown/)
- [Rexnord 114-1182-1 N5996 molded non-split sprocket with a 2.5" square shaft-ready bore and 12.245" (311.02 mm) pitch diameter. Constructed from acetal thermoplastic, this sprocket features a block body style and is designed for MatTop and TableTop chain systems.](https://www.mrosupply.com/products/523140/as-markdown/)
- [Rexnord 114-1182-2 N5996 molded non-split sprocket with a 3.5" square shaft-ready bore and 12.245" (311.02 mm) pitch diameter. Constructed from acetal thermoplastic, this block-style sprocket is designed for MatTop and TableTop chain systems.](https://www.mrosupply.com/products/850459/as-markdown/)
- [Rex MAS5215 5000 series heavy duty mounted adapter spherical pillow block bearing with 2-15/16 in (74.61 mm) bore. Cast iron expansion 2-bolt pillow block housing, double setscrew locking collar, and spring-loaded heavy contact lip seal for demanding applications.](https://www.mrosupply.com/products/503878/as-markdown/)
- [Link-Belt MFS235E1 (10411895) is a 4-bolt flange ball bearing with a 2-3/16" bore, set screw locking, and a cast iron housing. This medium-duty mounted ball bearing features a Viton single lip contact seal, powder-coated housing, and C5 increased clearance. It is designed for fixed (non-expansion) applications in general industrial machinery.](https://www.mrosupply.com/products/2363903/as-markdown/)
- [Link-Belt MCLG247NLPA (Mfg #10411859) is an MCLG200 series unmounted medium-duty ball bearing insert with a 2-15/16" bore and Centrik-Lok two-piece locking collar. Features a Buna single-lip contact seal, nylon retainer, and C3 internal clearance. Black oxide coated inner ring. Suitable for replacement in Link-Belt mounted bearing assemblies.](https://www.mrosupply.com/products/2364294/as-markdown/)

## Product's reviews:
- 1st timer - 1st purchase with MRO good product selection at best price. Will check in for my next purchase.
- A ok - Quick and correct. These days that is asking a lot.
- Excellent - very fast, very good!!! A+++
- 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.