We never sell your data to third parties
Rex MBR5303 5000 series heavy duty round flange cartridge bracket for mounted spherical roller bearings, 3-3/16 in (80.96 mm) bore, cast iron housing, double setscrew locking collar, spring-loaded heavy contact lip seal.
MODEL 10407856
Contact supplier for technical support on: 800-626-2120
$2,215.04 Each
Prices are subject to change
FREE SHIPPING ON ORDERS OVER $100
Select Quantity
Typically Ships in: 1 day
Returnable: See conditions
Available end cap
DTC10
Available End Cap
DTC10
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 5/16 in
Bolt Circle Radius (in)
4 5/16 in
Bolt hole circle diameter (in)
8 5/8 in
Bolt Hole Circle Diameter (in)
8 5/8 in
Bolt Size (in)
3.1875 in
Bore length (in)
5 5/16 in
Bore Length (in)
5 5/16 in
Bore size (in)
3.1875 in
Bore Size (in)
3.1875 in
Cage Material
Engineered Polymer
Clearance
C3 STANDARD
Distance between bolt holes (in)
6 3/32 in
Distance Between Bolt Holes (in)
6 3/32 in
Distance from housing cast face to inner ring long hub face (in)
15/16 in
Distance from Housing Cast Face to Inner Ring Long Hub Face (in)
15/16 in
Distance from mounting surface to end of pilot end (in)
2 15/16 in
Distance from Mounting Surface to End of Pilot End (in)
2 15/16 in
Distance from mounting surface to outer most bearing face (in)
2 3/8 in
Distance from Mounting Surface to Outer Most Bearing Face (in)
2 3/8 in
Fixed vs. Expansion
Fixed
Foot Height (in)
0.94
Grease Fitting Thread Size
1/8 NPT
Height
11.25
Housing Cast Face to Outermost Bearing Face (in)
0.94
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
5303U
Length
11.50
Length Through Bore (in)
5.31
Locking collar outside diameter (in)
4 29/32 in
Locking Collar Outside Diameter (in)
4 29/32 in
Locking device kit
SC10 QTY 2
Locking Device Kit
SC10 QTY 2
Locking Type
Double Set Collar
Lubrication type
EXXON RONEX MP STD
Lubrication Type
EXXON RONEX MP STD
Maximum Speed (RPM)
1400 rpm
Maximum Temperature (C)
107 C
Maximum Temperature (F)
225 F
Microlock kit
ML4
Microlock Kit
ML4
Mounting bolt size (in)
3/4 in
Mounting Bolt Size (in)
3/4 in
Mounting pad height (in)
15/16 in
Mounting Pad Height (in)
15/16 in
Mounting Surface to End of Housing (in)
2.94
Net Weight
38.00
Pilot depth (in)
1 1/4 in
Pilot Depth (in)
1 1/4 in
Pilot diameter (in)
7.375 in
Pilot Diameter (in)
7.375 in
Primary seal
Buna spring loaded lip seal
Primary Seal
BUNA SPRING LOADED LIP SEAL
Radial Dynamic Load Capacity (lb)
84330 lb
Radial Static Load Capacity (lb)
90700 lb
Retainer material
Engineered Polymer
Retainer Material
Engineered Polymer
Seal kit
MS10
Seal Kit
MS10
Seal type
Heavy Contact Seal
Seal Type
Heavy Contact Seal
Series
Flanged Cartridge Blocks
Setscrew torque (in-lbs)
680 in/lbs
Setscrew Torque (in-lbs)
680 in/lbs
Size code
10
Size Code
10
Unit of dimension
in
Unit of Dimension
IN
Vibration frequency fundamental train
0.0073 cps
Vibration Frequency Fundamental Train
0.0073 cps
Vibration frequency inner ring defect
0.1784 cps
Vibration Frequency Inner Ring Defect
0.1784 cps
Vibration frequency outer ring defect
0.1383 cps
Vibration Frequency Outer Ring Defect
0.1383 cps
Vibration frequency roller spin
0.0628 cps
Vibration Frequency Roller Spin
0.0628 cps
Volume
3.36
Volume unit
GLL
Volume Unit
GLL
Weight unit
LB
Width
6.00
3 3/16" Mounted Spherical Roller Bearing, Cast Iron 4-Bolt Round Flange Cartridge Block, Double Setscrew Locking Collar, Spring Loaded Heavy Contact Seal
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 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.
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 more