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MBR3307

3000 Series 4-Bolt Flange Spherical Roller Bearing Cartridge Unit

Item #100739123
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Product details

  • Spherical Roller Bearing Cartridge Unit
  • 3 7/16 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

Relubricatable Yes
Grease Fitting Size 1/8 in NPT
Bearing Type Spherical Roller Bearing
Housing Construction 1 Piece
Collar Extension 1 9/64 in
Type Spherical Roller Bearing
Flange Pilot Diameter 7 3/8 in
End Type Open End
Size Code 10
Flange Thickness 15/16 in
Bolt Circle Radius 4 5/16 in
Length Through Bore 4.5625 in
Mounted Unit Duty Heavy-Duty
Series 3000
Housing Height 10 1/4 in
Seal Type Spring Loaded Heavy Contact Seals
Bearing Design Non-Expansion
Bolt Size 3/4 in
Style 4-Bolt Piloted Flange
Bolt Hole Spacing 6 3/32 in
Bore Dia. [Max] 3 15/16 in
Bolt Circle Dia. 8 5/8 in
Misalignment Range ±1 1/2°
Pilot Depth 1 1/4 in
Housing Length 10 1/4 in
Overall Width 6 3/64 in
Inch/Metric Inch
Bore Dia. [Min] 1 7/16 in
Shaft Dia. 3.4375 in
Lubricant Type Exxon Ronex MP
Shape Round
Flange Type 4-Bolt Piloted Flange
Set Screw Torque 460 in lb
RPM [Max] 1400 rpm
Collar O.D. 4 29/32 in
Duty Heavy-Duty
Housing Material Cast Iron
Temperature Range [Min] -40 °F
Locking Device Eccentric Cam Locking Collar
Temperature Range [Max] 225 °F
Lubrication Relubricatable
Weight 34.0 LB
EAN or UPC 698210910891
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