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Rex MBR531540 is a 5000 series heavy duty mounted spherical roller bearing in a fixed cast iron 4-bolt round flange cartridge bracket. It features a 3-15/16" bore, double setscrew locking collar, and spring-loaded heavy contact lip seal.
MODEL 10415361
Contact supplier for technical support on: 800-626-2120
$3,443.77 Each
Prices are subject to change
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Returnable: See conditions
Available end cap
DTC11
Available End Cap
DTC11
Available Seal Type
K Light Contact Lip Seal; M Spring Loaded Heavy Contact Lip Seal (Buna and Viton); Z Clearance Seal; G Triple Lip
Bearing Brand
REX ROLLER BEARING
Bolt circle radius (in)
4 11/16 in
Bolt Circle Radius (in)
4 11/16 in
Bolt hole circle diameter (in)
9 3/8 in
Bolt Hole Circle Diameter (in)
9 3/8 in
Bolt Size (in)
3.9375 in
Bore length (in)
6 1/8 in
Bore Length (in)
6 1/8 in
Bore size (in)
3.9375 in
Bore Size (in)
3.9375 in
Cage Material
Engineered Polymer
Clearance
C3 STANDARD
Distance between bolt holes (in)
6 5/8 in
Distance Between Bolt Holes (in)
6 5/8 in
Fixed vs. Expansion
Fixed
Grease Fitting Thread Size
1/8 NPT
Height
11.25
Housing coating
Powder coated
Housing Coating
POWDER COATED
Housing construction
Solid
Housing Construction
Solid
Housing material
Cast iron
Housing Material
Cast Iron
Housing style
Flange block
Housing Style
Flange Block
Housing type
Flange, Cartridge
Housing Type
Flange, Cartridge
Insert
5315U
Length
11.50
Length Through Bore (in)
6.13
Locking device kit
SC11 QTY 2
Locking Device Kit
SC11 QTY 2
Locking Type
Double Set Collar
Lubrication type
Preservative only - no grease
Lubrication Type
PRESERVATIVE ONLY - NO GREASE
Maximum Speed (RPM)
1200 rpm
Mounting bolt size (in)
3/4 in
Mounting Bolt Size (in)
3/4 in
Net Weight
53.00
Primary seal
Buna spring loaded lip seal
Primary Seal
BUNA SPRING LOADED LIP SEAL
Radial Dynamic Load Capacity (lb)
130970 lb
Radial Static Load Capacity (lb)
137000 lb
Retainer material
Engineered Polymer
Retainer Material
Engineered Polymer
Series
Flanged Cartridge Blocks
Size code
11
Size Code
11
Special lube percent
0% fill
Special Lube Percent
0% FILL
Unit of dimension
in
Unit of Dimension
IN
Vibration frequency fundamental train
0.0071 cps
Vibration Frequency Fundamental Train
0.0071 cps
Vibration frequency inner ring defect
0.1717 cps
Vibration Frequency Inner Ring Defect
0.1717 cps
Vibration frequency outer ring defect
0.1283 cps
Vibration Frequency Outer Ring Defect
0.1283 cps
Vibration frequency roller spin
0.0548 cps
Vibration Frequency Roller Spin
0.0548 cps
Volume
3.36
Volume unit
GLL
Volume Unit
GLL
Weight unit
LB
Width
6.00
3 15/16" Mounted Spherical Roller Bearing, Fixed Cast Iron 4-Bolt Round Flange Cartridge Block, Double Setscrew Locking Collar, Spring Loaded Heavy Contact Seal, No Grease
How 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.