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

Pilot Depth	1 1/4 in
Lubrication	Relubricatable
Flange Type	4-Bolt Flange
Flange Thickness	0.75 in
Bore Dia. [Max]	3 15/16 in
Lubricant Type	Exxon Ronex MP
Temperature Range [Max]	225 °F
Bolt Circle Dia.	7 1/2 in
Style	4-Bolt Piloted Flange
RPM [Max]	1700 rpm
Inch/Metric	Inch
Series	3000
Shape	Round
Mounted Unit Duty	Heavy-Duty
Bearing Design	Non-Expansion
Bearing Type	Spherical Roller Bearing
Flange Pilot Diameter	6 3/8 in
Size Code	9
Grease Fitting Size	1/8 in NPT
Seal Type	Spring Loaded Heavy Contact Seals
Shaft Dia.	2.9375 in
Collar Extension	1 1/64 in
Set Screw Torque	460 in lb
Locking Device	Eccentric Cam Locking Collar
Housing Construction	1 Piece
Temperature Range [Min]	-40 °F
Housing Length	8 3/4 in
Housing Material	Cast Iron
Bolt Hole Spacing	5 19/64 in
Type	Spherical Roller Bearing
Misalignment Range	±1 1/2°
Duty	Heavy-Duty
Bolt Circle Radius	3 3/4 in
Bore Dia. [Min]	1 7/16 in
Housing Height	8 3/4 in
Bolt Size	5/8 in
Collar O.D.	4 1/16 in
Overall Width	5 in
End Type	Open End
Length Through Bore	4.20313 in
Weight	22.3 LB
EAN or UPC	698210910884