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

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