# Rex ZFS5307S 3-7/16" Square Flange Expansion Mounted Spherical Roller Bearing, 5000 Series Heavy Duty, Cast Iron, Double Setscrew Locking, Clearance Seal - MROSupply.com ***Rex ZFS5307S 5000 series heavy duty mounted spherical roller bearing in a square flange expansion housing. The 3-7/16 in (87.31 mm) bore is secured by a double setscrew locking collar. The cast iron 4-bolt flange block includes a pilot and a standard clearance seal for general industrial applications.*** ## Product details: - Catalog number: 10423543 - SKU: 508595 - Price: ***$2,818.40*** Each - Shipping: ***FREE SHIPPING*** ON ORDERS OVER $100 - Typically Ships in: 1 day - Brand: [Rexnord](https://www.mrosupply.com/brands/rexnord/) - Category: - [4-Bolt Flange](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/flanged-mounted-bearings/4-bolt-flange/) - [Flanged Mounted Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-roller-bearings/flanged-mounted-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: 44.400 lb - UPC: 698210714956 - 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: DTC10 - Available End Cap: DTC10 - Available Seal Type: K Light Contact Lip Seal; M Spring Loaded Heavy Contact Lip Seal (Buna and Viton); Z Clearance Seal; G Triple Lip - Bearing Brand: REX ROLLER BEARING - Bearing housing: FB 4 BLT SQ TYPE ZF WITH PILOT - Bearing housing material: Cast iron - Bearing Type: Spherical roller brg - Bolt circle radius (in): 4 3/4 in - Bolt Circle Radius (in): 4 3/4 in - Bolt hole circle diameter (in): 9 1/2 in - Bolt Hole Circle Diameter (in): 9 1/2 in - Bolt Size (in): 3.4375 in - Bore length (in): 5 5/16 in - Bore Length (in): 5 5/16 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): 6 23/32 in - Distance Between Bolt Holes (in): 6 23/32 in - Expansion Capability (in): 0.5 - Expansion lock plug: 105-95008-23 - Expansion Lock Plug: 105-95008-23 - 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: 6.25 - Housing Cast Face to Outermost Bearing Face (in): 0.94 - Housing coating: Powder coated - Housing Coating: POWDER COATED - Housing Construction: Solid - Housing Material: Cast Iron - Housing Style: Flange Block - Housing Type: Flange, Four Bolt, Pilot - Housing width (in): 8.44 - Inner Ring Outside Diameter (in): 3.975 - Insert: 5307U - Length: 9.69 - Length Through Bore (in): 5.31 - Locking collar outside diameter (in): 4.91 - Locking device kit: SC10 QTY 2 - Locking Device Kit: SC10 QTY 2 - Locking Type: Double 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 - Microlock kit: ML3 - Misalignment Capability: ±2.0° Misalignment - Dynamic - Misalignment Type: Dynamic - Mounted clearance: C3 standard - Mounting bolt size (in): 3/4 in - Mounting Bolt Size (in): 3/4 in - Net Weight: 44.40 - Overall Length (in): 8.44 - Overall width: 8.44 - Pilot diameter (in): 8 - 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 - Service instructions: BR3-001 REX 2, 3, 5, 6, 9000 - Setscrew torque (in-lbs): 680 - Shaft diameter (in): 3 7/16 in - Shaft locking: Double set collar - Size code: 10 - Size Code: 10 - Standoff distance (in): 0.25 - Threaded cover kit: TC10 - 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: 2.539 - Volume unit: GLL - Volume Unit: GLL - Weight unit: LB - Width: 9.69 ## 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: - Falk ltg - Fast convenient shopping. Highly recommend. Prompt shipping. 👍🏼 - Rexnord idler pulley - Great pricing and fast shipping A +++++++++ - Hydro coupler - Part went on beautifully! I'm very happy with purchase thank u - 1st timer - 1st purchase with MRO good product selection at best price. Will check in for my next purchase. ## 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.