MBR3307

3000 Series 4-Bolt Flange Spherical Roller Bearing Cartridge Unit

Item #100739123

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each One-time purchase

Product Details

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

Flange Type	4-Bolt Piloted Flange
Type	Spherical Roller Bearing
Locking Device	Eccentric Cam Locking Collar
Housing Length	10 1/4 in
Bearing Design	Non-Expansion
Length Through Bore	4.5625 in
Retainer Type	Engineered Polymer
Vibration Frequency Fundamental Train	0.0073 cps
Pilot Depth	1 1/4 in
Collar Extension	1 9/64 in
Collar O.D.	4 29/32 in
Static Load Rating	90700 lb
Misalignment Range	±1 1/2°
Vibration Frequency Roller Spin	0.0628 cps
Set Screw Torque	460 in lb
Shaft Locking	Eccentric Locking Collar
Housing Construction	1 Piece
Relubricatable	Yes
Shape	Round
Radial Dynamic Load Capacity	84330 lb
Bore Dia. [Min]	1 7/16 in
Size Code	10
Overall Width	6 3/64 in
Flange Thickness	15/16 in
Mounted Unit Duty	Heavy-Duty
End Type	Open End
Shaft Dia.	3 7/16 in
Flange Pilot Diameter	7 3/8 in
Bolt Circle Dia.	8 5/8 in
Housing Material	Cast Iron
Style	4-Bolt Piloted Flange
Duty	Heavy-Duty
Primary Seal	Buna Spring Loaded Lip Seal
Bearing Type	Spherical Roller
Temperature Range [Max]	225 °F
Inch/Metric	Inch
Lubrication Type	Exxon Ronex MP Std
Vibration Frequency Inner Ring Defect	0.1784 cps
Bolt Circle Radius	4 5/16 in
Vibration Frequency Outer Ring Defect	0.1383 cps
Grease Fitting Size	1/8 NPT
Bolt Hole Spacing	6 3/32 in
Housing Height	10 1/4 in
Lubricant Type	Exxon Ronex MP
RPM [Max]	1400 rpm
Series	3000
Lubrication	Relubricatable
Temperature Range [Min]	-40 °F
Bolt Size	3/4 in
Bore Dia. [Max]	3 15/16 in
Seal Type	Spring Loaded Heavy Contact Seals
Housing Coating	Powder Coated
Weight	34.0 LB
EAN or UPC	698210910891