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Rexnord MB2012GR48 is a 3/4" mounted spherical roller bearing with a fixed cast iron 3-bolt round flange block. It features a single setscrew locking collar and a spring loaded heavy contact seal with a special locking device on the threaded cover. This bearing is designed for normal duty applications requiring reliable shaft support and misalignment accommodation.
MODEL 10433632
Contact supplier for technical support on: 800-626-2120
$612.75 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable: See conditions
Ability to Relubricate
Yes
Available seal type
K Light Contact Lip Seal;M Spring Loaded Heavy Contact Lip Seal (Buna and Viton);Z Clearance Seal
Available Seal Type
K Light Contact Lip Seal; M Spring Loaded Heavy Contact Lip Seal (Buna and Viton); Z Clearance Seal
Bearing Brand
REX ROLLER BEARING
Bearing housing
FLANGE BLOCK 3 BOLT ROUND
Bearing housing material
Cast iron
Bearing Type
Spherical roller brg
Bolt circle radius (in)
2 1/16 in
Bolt Circle Radius (in)
2 1/16 in
Bolt hole circle diameter (in)
4 1/8 in
Bolt Hole Circle Diameter (in)
4 1/8 in
Bolt Size (in)
0.75 in
Bore length (in)
2 9/16 in
Bore Length (in)
2 9/16 in
Bore Size (in)
0.75 in
C dynamic load rating
15320 lb
Cage Material
Engineered Polymer
Clearance
C3 STANDARD
Co static load rating
14900 lb
Distance between bolt holes (in)
3 37/64 in
Distance Between Bolt Holes (in)
3 37/64 in
Distance from housing cast face to locking feature face (in)
9/16 in
Distance from Housing Cast Face to Locking Feature Face (in)
9/16 in
Fixed expansion
Fixed
Fixed vs. Expansion
Fixed
Foot Height (in)
0.56
Grease fitting size
1/8 NPT
Grease Fitting Thread Size
1/8 NPT
Height
3.25
Housing Cast Face to Outermost Bearing Face (in)
0.53
Housing coating
Powder coated
Housing Coating
POWDER COATED
Housing Construction
Solid
Housing Material
Cast Iron
Housing Outside Diameter (in)
5.13
Housing Style
Flange Block
Housing Type
Flange, Three Bolt
Inner ring hub diameter (in)
1 5/16 in
Inner Ring Hub Diameter (in)
1 5/16 in
Inner Ring Outside Diameter (in)
1.307
Insert
2012UR
Length
5.50
Length Through Bore (in)
2.56
Locking collar outside diameter (in)
1 3/4 in
Locking Collar Outside Diameter (in)
1 3/4 in
Locking device kit
SC2
Locking Device Kit
SC2
Locking Type
Single Set Collar
Lubrication type
EXXON RONEX MP STD
Lubrication Type
EXXON RONEX MP STD
Max Speed
4400 RPM
Max temperature (°F (°C))
225 (107) F (C)
Maximum Speed (RPM)
4400 rpm
Maximum Temperature (C)
107 C
Maximum Temperature (F)
225 F
Misalignment Capability
±2.0° Misalignment - Dynamic
Misalignment Type
Dynamic
Mounted clearance
C3 standard
Mounting bolt size (in)
3/8 in
Mounting Bolt Size (in)
3/8 in
Mounting pad height (in)
9/16 in
Mounting Pad Height (in)
9/16 in
Net Weight
4.30
Overall Length (in)
4.75
Overall width
4.75
Primary seal
Buna spring loaded lip seal
Primary Seal
BUNA SPRING LOADED LIP SEAL
Radial Dynamic Load Capacity (lb)
15320 lb
Radial Static Load Capacity (lb)
14900 lb
Retainer Material
Engineered Polymer
Retainer type
Engineered polymer
Seal kit
MS2
Seal Kit
MS2
Seal Type
Heavy Contact Seal
Service instructions
BR3-001 REX 2, 3, 5, 6, 9000
Setscrew torque (in-lbs)
185 in/lbs
Setscrew Torque (in-lbs)
185 in/lbs
Shaft diameter (in)
3/4 in
Shaft locking
Single set collar
Size code
2
Size Code
2
Standoff distance (in)
1/32 in
Standoff Distance (in)
1/32 in
Type of seal
Spring loaded heavy contact seal
Unit of dimension
in
Unit of Dimension
IN
Vibration frequency fundamental train
0.0068 cps
Vibration Frequency Fundamental Train
0.0068 cps
Vibration frequency inner ring defect
0.1286 cps
Vibration Frequency Inner Ring Defect
0.1286 cps
Vibration frequency outer ring defect
0.0880 cps
Vibration Frequency Outer Ring Defect
0.0880 cps
Vibration frequency roller spin
0.0406 cps
Vibration Frequency Roller Spin
0.0406 cps
Volume
0.426
Volume unit
GLL
Volume Unit
GLL
Weight unit
LB
Width
5.50
3/4" Mounted Spherical Roller Bearing, Fixed Cast Iron 3-Bolt Round Flange Block, Single Setscrew Locking Collar, Spring Loaded Heavy Contact Seal, Special Locking Device on Threaded Cover
SKU: 495479
Good orice
This stump grinder wheel bearing is expensive and I need two each time I change them. Best price I found anywhere and free shipping here at MRO Supply
Read moreSKU: 1303956
Great service-fast shipping
Awesome service. I would highly recommend doing business with MRO! Price was cheapest anywhere
Read moreHow do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
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SKU: 495479
Good orice
This stump grinder wheel bearing is expensive and I need two each time I change them. Best price I found anywhere and free shipping here at MRO Supply
Read moreSKU: 1303956
Great service-fast shipping
Awesome service. I would highly recommend doing business with MRO! Price was cheapest anywhere
Read more