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