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

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