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

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