Rexnord MB6303 Flange Blocks Rex Spherical Roller Bearings - MB6303
Part #:10410872
Catalog #:MB6303
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Product Specifications
Dimensions
| Overall Height (in): | 5.28 in | Overall Length (in): | 8.44 in |
| Overall Width (in): | 8.44 in | Bolt Size (in): | 3/4 in |
| Foot Height (in): | 1 in | Housing Width (in): | 8.44 in |
| Bore Diameter (in): | 3.1875 in | Locking Collar Outside Diameter (in): | 4.95 in |
| Standoff Distance (in): | 0.25 in | Inner Ring Outside Diameter (in): | 3.975 in |
| Bolt Spacing (in): | 6.72 in | Length Through Bore (in): | 5.03 in |
| Bolt Circle (in): | 9.5 in | Housing Cast Face to Outermost Bearing Face (in): | 1.59 in |
Technical Specifications
| Seal Type: | Heavy Contact Seal | Housing Color: | Black |
| Rolling Element: | Spherical Roller | Static Load Rating (lb): | 90,700 lb |
| Housing Construction: | Solid | Housing Style: | Flange Block |
| Product: | ZB6000 | Misalignment Type: | Dynamic |
| Shaft Locking Type: | Adapter Mount | Radial Clearance: | C3 STANDARD |
| Housing Material: | Cast Iron | Housing Type: | Flange, Four Bolt |
| End Cap: | NEED EXT EC | Radial Dynamic Load Capacity (lb): | 84,330 lb |
| Cage Material: | Engineered Polymer | Series: | Flange Blocks |
| Fixed/Expansion: | Fixed | Seal Kit: | MS10 |
| Wrench Style Shurlok Install Tool: | 105-90420-51 | Microlock Kit: | ML4 |
| Setscrew Torque (in-lbs): | 165-185 in/lbs | Available Seal Type: | K Light Contact Lip Seal; M Spring Loaded Heavy Contact Lip Seal (Buna and Viton); Z Clearance Seal; G Triple Lip |
| Ability to Relubricate: | Yes | Maximum Speed (RPM): | 1400 rpm |
| Lubricant: | Lithium Complex NLGI 2 Grease | Size Code: | 10 |
| Vibration Frequency Roller Spin: | 0.0628 cps | Vibration Frequency Fundamental Train: | 0.0073 cps |
| Housing Coating: | POWDER COATED | Impact Style Shurlok Install Tool: | 105-90425-51 |
| Grease Fitting Thread Size: | 1/8 NPT | Vibration Frequency Outer Ring Defect: | 0.1383 cps |
| Primary Seal: | BUNA SPRING LOADED LIP SEAL | Insert: | 6303U |
| Misalignment Capability: | ±2.0° Misalignment - Dynamic | Max Operating Temperature (C): | 107 °C |
| Vibration Frequency Inner Ring Defect: | 0.1784 cps | Max Operating Temperature (F): | 225 °F |
| Locking Device Kit: | AK106303 | Shaft Locking Collar Kit/Adapter Assembly: | AK106303 |
General Specifications
| UPC: | 793699906950 | Weight: | 34.60 LB |
| Packaged Length: | 9.50 IN | Packaged Width: | 4.50 IN |
| Packaged Height: | 9.25 IN | HTC: | 84833080 |

