MBR3307

3000 Series 4-Bolt Flange Spherical Roller Bearing Cartridge Unit

Item #100739123

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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

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