# Rex ZB2204S Round Flange Cartridge Bearing 2-1/4" Bore 2000 Series Normal Duty Set Screw Locking - MROSupply.com ***Rex ZB2204S 2000 series normal duty round flange cartridge bearing with 2-1/4 in (57.15 mm) bore. Fixed cast iron 4-bolt round flange block with pilot, single setscrew locking collar, and standard clearance seal.*** ## Product details: - Catalog number: 10430807 - SKU: 507997 - Price: ***$876.63*** 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: 11.900 lb - UPC: 698210637934 - 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: DTC7 - Available End Cap: DTC7 - 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 RND WITH PILOT - Bearing housing material: Cast iron - Bearing Type: Spherical roller brg - Bolt circle radius (in): 3 3/16 in - Bolt Circle Radius (in): 3 3/16 in - Bolt hole circle diameter (in): 6 3/8 in - Bolt Hole Circle Diameter (in): 6 3/8 in - Bolt Size (in): 2.25 in - Bore length (in): 3 5/16 in - Bore Length (in): 3 5/16 in - Bore Size (in): 2.25 in - C dynamic load rating: 36370 lb - Cage Material: Engineered Polymer - Clearance: C3 STANDARD - Co static load rating: 44400 lb - Distance between bolt holes (in): 4 1/2 in - Distance Between Bolt Holes (in): 4 1/2 in - Distance from housing cast face to inner ring long hub face (in): 13/16 in - Distance from Housing Cast Face to Inner Ring Long Hub Face (in): 13/16 in - Fixed expansion: Fixed - Fixed vs. Expansion: Fixed - Foot Height (in): 0.69 - Grease fitting size: 1/8 NPT - Grease Fitting Thread Size: 1/8 NPT - Height: 7.25 - Housing Cast Face to Outermost Bearing Face (in): 0.78 - Housing coating: Powder coated - Housing Coating: POWDER COATED - Housing Construction: Solid - Housing Material: Cast Iron - Housing Outside Diameter (in): 7.75 - Housing Style: Flange Block - Housing Type: Flange, Four Bolt, Pilot - Inner ring hub diameter (in): 2 5/8 in - Inner Ring Hub Diameter (in): 2 5/8 in - Inner Ring Outside Diameter (in): 2.62 - Insert: 2204U - Length: 7.25 - Length Through Bore (in): 3.31 - Locking collar outside diameter (in): 3 1/4 in - Locking Collar Outside Diameter (in): 3 1/4 in - Locking device kit: SC7 - Locking Device Kit: SC7 - Locking Type: Single Set Collar - Lubrication type: EXXON RONEX MP STD - Lubrication Type: EXXON RONEX MP STD - Max Speed: 3650 RPM - Max temperature (°F (°C)): 225 (107) F (C) - Maximum Speed (RPM): 3650 rpm - Maximum Temperature (C): 107 C - Maximum Temperature (F): 225 F - Microlock kit: ML2 - Microlock Kit: ML2 - 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): 11/16 in - Mounting Pad Height (in): 11/16 in - Net Weight: 11.90 - Overall Length (in): 7.75 - Overall width: 7.75 - Pilot diameter (in): 5 in - Pilot Diameter (in): 5 in - Primary seal: Steel clearance seal - Primary Seal: STEEL CLEARANCE SEAL - Radial Dynamic Load Capacity (lb): 36370 lb - Radial Static Load Capacity (lb): 44400 lb - Retainer Material: Engineered Polymer - Retainer type: Engineered polymer - Seal kit: ZS7 - Seal Kit: ZS7 - Seal Type: Labyrinth Seal - Service instructions: BR3-001 REX 2, 3, 5, 6, 9000 - Setscrew torque (in-lbs): 460 in/lbs - Setscrew Torque (in-lbs): 460 in/lbs - Shaft diameter (in): 2 1/4 in - Shaft locking: Single set collar - Size code: 7 - Size Code: 7 - Standoff distance (in): 3/32 in - Standoff Distance (in): 3/32 in - Threaded cover kit: TC7 - 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: 0.1790 cps - Vibration Frequency Inner Ring Defect: 0.1790 cps - Vibration frequency outer ring defect: 0.1377 cps - Vibration Frequency Outer Ring Defect: 0.1377 cps - Vibration frequency roller spin: 0.0606 cps - Vibration Frequency Roller Spin: 0.0606 cps - Volume: 0.796 - Volume unit: GLL - Volume Unit: GLL - Weight unit: LB - Width: 3.50 ## Product's reviews: - Good orice - This stump grinder wheel bearing is expensive and I need two each time I change them. Best price I found anywhere and free shipping here at MRO Supply - Mechanic - Great service and fast shipping and great quality of product. - Good - Good - Good - On time good ## 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.