Rexnord 10430203 — 2-Bolt Pillow Block Bearings
Rex MAS5307 5000 series heavy duty mounted adapter spherical pillow block bearing with 3-7/16 in (87.31 mm) bore. Cast iron expansion 2-bolt pillow bl
Rex MAS5307 5000 series heavy duty mounted adapter spherical pillow block bearing, 3-7/16 in (87.31 mm) bore, cast iron expansion 2-bolt housing, double setscrew locking collar, spring-loaded heavy contact seal.
| 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 in |
| Base to centerline height (in) | 3.75 |
| Base Width (in) | 3.44 in |
| 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 in |
| Bore Size (in) | 3.4375 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 in |
| Expansion lock plug | BS225728A |
| Fixed expansion | EXP |
| Fixed vs. Expansion | Expansion |
| Foot Height (in) | 2.25 in |
| Grease fitting size | 1/8 NPT |
| Grease Fitting Thread Size | 1/8 NPT |
| Height | 7.88 mm |
| Housing Cast Face to Outermost Bearing Face (in) | 0.94 |
| 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 in |
| Insert | MCS5307 |
| Length | 13.50 ft |
| Length Through Bore (in) | 5.31 in |
| Locking Collar Outside Diameter (in) | 4.91 in |
| Locking device kit | SC10 QTY 2 |
| Locking Type | Double Set Collar |
| Lubrication Type | EXXON RONEX MP STD |
| Max Speed | 1400 RPM |
| Maximum Speed (RPM) | 1400 rpm rpm |
| Maximum Temperature (C) | 107 |
| Maximum Temperature (F) | 225 |
| Misalignment Capability | ±2.0° Misalignment - Dynamic |
| Misalignment Type | Dynamic |
| Mounted clearance | C3 standard |
| Net weight | 43.00 |
| Overall Length (in) | 13 in |
| Overall Width | 5.31 |
| Primary seal | BUNA SPRING LOADED LIP 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 | MS10 |
| Seal Type | Heavy Contact Seal |
| Series | Solid-housed Pillow Blocks |
| Service instructions | BR3-001 REX 2, 3, 5, 6, 9000 |
| Setscrew Torque (in-lbs) | 680 in/lbs |
| Shaft locking | Double set collar |
| Size Code | 10 |
| Slot Length (in) | 1.63 in |
| Unit of dimension | IN |
| Vibration Frequency Fundamental Train | 0.0073 cps cps |
| Vibration Frequency Inner Ring Defect | 0.1784 cps cps |
| Vibration Frequency Outer Ring Defect | 0.1383 cps cps |
| Vibration Frequency Roller Spin | 0.0628 cps cps |
| Volume | 2.301 |
| Volume unit | GLL |
| Weight unit | LB |
| Width | 5.00 mm |
Request a quote for this part
Email [email protected] or call (825) 454-5367 for pricing and availability.
Frequently Asked Questions
How do I get pricing for 10430203?
KKM Solutions is a quote-based industrial supplier, so prices are not listed online. Send the quote form on this page with your quantity, or email [email protected], and our order desk will reply with pricing and availability within 1 business day.
Who manufactures the 10430203?
10430203 is a Rexnord part. KKM Solutions sources Rexnord components to the exact manufacturer specification and cross-checks every order against manufacturer part data before it ships.
Is 10430203 discontinued, and can I still get one?
KKM Solutions does not publish a manufacturer lifecycle status for 10430203 — check Rexnord's own product page for whether it is current, superseded, or end-of-life. It does not change what we can do: we source current-production, superseded and long-obsolete parts the same way, and where a part is genuinely unavailable we identify a form-fit-function equivalent. Send the part number through the quote form on this page, or use our obsolete part lookup at https://kkmsolutions.com/tools/obsolete-part-lookup/.
What are the key specifications of 10430203?
Key specifications include 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 in; Base to centerline height (in): 3.75. The full specification table on this page lists every published attribute for this part.
How quickly can 10430203 ship?
In-stock items are dispatched the same business day for orders placed by 11 AM; sourced and quoted items ship per the quoted lead time. KKM Solutions ships worldwide — to your site, warehouse, or freight forwarder.
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