Rexnord Corp.
MBR3315
3000 Series 4-Bolt Flange Spherical Roller Bearing Cartridge Unit
Item #102177860
each
Product details
- Spherical Roller Bearing Cartridge Unit
- 3 15/16 in Shaft Diameter
- Eccentric Cam Collar Locking Device
- Non-Expansion Bearing Design
- Spherical Roller Bearing Type
features
- Easy bearing clearance: can be field adjusted to meet application needs
- Mounting to suit the load and installation requirements
- Shaft ready: prelubricated with standard grease for normal operation
- other lubricants available for special conditions
- Fully self-aligning: spherical roller bearing to accommodate operational and installation misalignment
- Rugged housing: standard material – cast iron, steel or ductile iron available on request
- Carburized raceways: case-carburized inner races provide a hard, fatigue-resistant surface and a tough, crack-resistant ductile core
- Interchangeable seals: three types of seals to match the application requirements: Z seal, for the broad range of normal operating conditions
- K seal, for dusty, dirty conditions
- and M seal, for protection against liquid contamination
- For extra protection under severe conditions, auxiliary caps are also available
- Spherical bearing design accomodates continual misalignment.
- Collar is larger, thicker, and heavier to provide increased surface area contact with shaft.
- Threaded cover and microlock design allows bearing clearance adjustment, off-the-shelf units to meet special requirements.
- Wedges tight during operation, even if setscrews loosen.
- Carburized (case-hardened) inner ring resists fracturing, even under heavy loads
- Units are completely preassembled, preadjusted, greased, sealed, and ready to mount.
- Grips tight, even with undersized shafting.
Specifications
Pilot Depth | 1 1/2 in |
Bore Dia. [Min] | 1 7/16 in |
Seal Type | Spring Loaded Heavy Contact Seals |
Overall Width | 7 11/16 in |
Bolt Circle Dia. | 9 3/8 in |
Relubricatable | Yes |
Style | 4-Bolt Piloted Flange |
Shape | Round |
Misalignment Range | ±1 1/2° |
Size Code | 11 |
Bearing Type | Spherical Roller Bearing |
Collar Extension | 1.066667 in |
Type | Spherical Roller Bearing |
Flange Type | 4-Bolt Piloted Flange |
Bore Dia. [Max] | 3 15/16 in |
Flange Pilot Diameter | 8 1/8 in |
Temperature Range [Min] | -40 °F |
Grease Fitting Size | 1/8 in NPT |
Shaft Dia. | 3.9375 in |
Housing Material | Cast Iron |
Locking Device | Eccentric Cam Locking Collar |
Set Screw Torque | 460 in lb |
Mounted Unit Duty | Heavy-Duty |
Collar O.D. | 5 5/8 in |
Bolt Size | 3/4 in |
Bolt Hole Spacing | 6 5/8 in |
Inch/Metric | Inch |
Length Through Bore | 5.1875 in |
End Type | Open End |
Housing Construction | 1 Piece |
Housing Height | 10 7/8 in |
RPM [Max] | 1200 rpm |
Temperature Range [Max] | 225 °F |
Duty | Heavy-Duty |
Lubrication | Relubricatable |
Bolt Circle Radius | 4 11/16 in |
Lubricant Type | Exxon Ronex MP |
Bearing Design | Non-Expansion |
Housing Length | 10 7/8 in |
Series | 3000 |
Flange Thickness | 1 1/8 in |
Weight | 49.0 LB |
EAN or UPC | 698210910907 |