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

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