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

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