# Rex ZFS92034078 2-3/16" Square Flange Expansion Mounted Spherical Roller Bearing, 9000 Series Adapter Mount, Cast Iron Housing, Clearance Seal - MROSupply.com ***Rex ZFS92034078 9000 series adapter-mounted spherical roller bearing in a square flange expansion housing. 2-3/16 in (55.56 mm) bore, cast iron 4-bolt flange block, standard Z clearance seal, drilled auxiliary cap variant. Designed for expansion applications requiring axial shaft movement.*** ## Product details: - Catalog number: 10427993 - SKU: 508650 - Price: ***$1,569.69*** 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: 19.400 lb - UPC: 793699331646 - 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 - Bearing Brand: REX ROLLER BEARING - Bearing housing: FLG BLK 4 BLT SQ TYPE ZF - Bearing housing material: Cast iron - Bearing Type: Spherical roller brg - Bolt circle radius (in): 3 9/16 in - Bolt Circle Radius (in): 3 9/16 in - Bolt hole circle diameter (in): 7 1/8 in - Bolt Hole Circle Diameter (in): 7 1/8 in - Bolt Size (in): 2.1875 in - Bore length (in): 3 11/32 in - Bore Length (in): 3 11/32 in - Bore Size (in): 2.1875 in - C dynamic load rating: 43240 lb - Cage Material: Steel - Clearance: C3 STANDARD - Co static load rating: 53500 lb - Distance between bolt holes (in): 5 1/32 in - Distance Between Bolt Holes (in): 5 1/32 in - Distance from housing cast face to locking feature face (in): 11/32 in - Distance from Housing Cast Face to Locking Feature Face (in): 11/32 in - Expansion Capability (in): 0.38 - Expansion lock plug: 105-95008-25 - Expansion Lock Plug: 105-95008-25 - Fixed expansion: EXP - Fixed vs. Expansion: Expansion - Foot Height (in): 0.75 - Grease fitting size: 1/8 NPT - Grease Fitting Thread Size: 1/8 NPT - Height: 6.88 - Housing Cast Face to Outermost Bearing Face (in): 0.34 - Housing coating: Powder coated - Housing Coating: POWDER COATED - Housing Construction: Solid - Housing Material: Cast Iron - Housing Style: Flange Block - Housing Type: Flange, Four Bolt - Housing width (in): 6 7/16 in - Housing Width (in): 6 7/16 in - Inner Ring Outside Diameter (in): 2.901 - Insert: 9203U78 - Length: 6.88 - Length Through Bore (in): 3.34 - Locking collar outside diameter (in): 3.38 - Locking device kit: AK8203 - Locking Device Kit: AK8203 - Locking Type: Tapered Adapter - Locknut outside diameter: 3 3/8 in - Locknut Outside Diameter (in): 3 3/8 in - Lubrication type: Preservative only - no grease - Lubrication Type: PRESERVATIVE ONLY - NO GREASE - Max Speed: 3300 rpm - Max temperature (°F (°C)): 225 (107) F (C) - Maximum Speed (RPM): 3300 rpm - Maximum Temperature (C): 107 C - Maximum Temperature (F): 225 F - Microlock kit: ML3 - Microlock Kit: ML3 - Misalignment Capability: ±2.0° Misalignment - Dynamic - Misalignment Type: Dynamic - Mounted clearance: C3 standard - Mounting bolt size (in): 5/8 in - Mounting Bolt Size (in): 5/8 in - Mounting pad height (in): 3/4 in - Mounting Pad Height (in): 3/4 in - Net Weight: 19.40 - Overall Length (in): 6.44 - Overall width: 6.44 - 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 Kit: ZS8 - Seal Type: Labyrinth Seal - Service instructions: BR3-001 REX 2, 3, 5, 6, 9000 - Shaft diameter (in): 2 3/16 in - Shaft locking: Tapered adapter mount - Shaft locking collar kit/adapter assembly: AK8203 - Shaft Locking Collar Kit/Adapter Assembly: AK8203 - Size code: 8 - Size Code: 8 - Special lube percent: 0% fill - Special Lube Percent: 0% FILL - Standoff distance (in): 5/16 in - Standoff Distance (in): 5/16 in - Threaded cover kit: TC8 - Type of seal: Clearance seal - 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: 0.998 - Volume unit: GLL - Volume Unit: GLL - Weight unit: LB - Width: 4.88 ## 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: - Parts ordered - We were very happy with the parts we ordered. - Mechanic - Great service and fast shipping and great quality of product. - A ok - Quick and correct. These days that is asking a lot. - Great service-fast shipping - Awesome service. I would highly recommend doing business with MRO! Price was cheapest anywhere ## 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.