MBR3215

3000 Series 4-Bolt Flange Spherical Roller Bearing Cartridge Unit

Item #100739118

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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

Collar Extension	1 1/64 in
Overall Width	5 in
Mounted Unit Duty	Heavy-Duty
Bolt Circle Dia.	7 1/2 in
Radial Dynamic Load Capacity	57750 lb
Series	3000
Housing Coating	Powder Coated
Vibration Frequency Roller Spin	0.0591 cps
Lubricant Type	Exxon Ronex MP
Seal Type	Spring Loaded Heavy Contact Seals
Temperature Range [Max]	225 °F
Housing Material	Cast Iron
Flange Type	4-Bolt Piloted Flange
Shaft Locking	Eccentric Locking Collar
Bearing Type	Spherical Roller
Bearing Design	Non-Expansion
Style	4-Bolt Piloted Flange
Size Code	9
Housing Height	8 3/4 in
Vibration Frequency Fundamental Train	0.0072 cps
Lubrication	Relubricatable
Housing Construction	1 Piece
Temperature Range [Min]	-40 °F
Duty	Heavy-Duty
Inch/Metric	Inch
Bore Dia. [Max]	3 15/16 in
Flange Pilot Diameter	6 3/8 in
Bolt Hole Spacing	5 19/64 in
Bolt Size	5/8 in
Shape	Round
Pilot Depth	1 1/4 in
Flange Thickness	0.75 in
Bore Dia. [Min]	1 7/16 in
Lubrication Type	Exxon Ronex MP Std
Collar O.D.	4 1/16 in
Static Load Rating	71500 lb
Relubricatable	Yes
Shaft Dia.	2 15/16 in
Primary Seal	Buna Spring Loaded Lip Seal
Bolt Circle Radius	3 3/4 in
Locking Device	Eccentric Cam Locking Collar
Type	Spherical Roller Bearing
RPM [Max]	1700 rpm
Housing Length	8 3/4 in
Length Through Bore	4.20313 in
Vibration Frequency Outer Ring Defect	0.1299 cps
Grease Fitting Size	1/8 NPT
Set Screw Torque	460 in lb
Retainer Type	Engineered Polymer
End Type	Open End
Vibration Frequency Inner Ring Defect	0.1701 cps
Misalignment Range	±1 1/2°
Weight	22.3 LB
EAN or UPC	698210910884