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Rexnord KBR2300 is a 3" bore Rex bearing insert for spherical roller bearings. It features a cast iron 4-bolt round flange cartridge block housing, single setscrew locking collar, and single lip light contact seal. This insert is designed for normal duty applications requiring reliable shaft support and self-alignment.
MODEL 10442588
Contact supplier for technical support on: 800-626-2120
$1,289.45 Each
Prices are subject to change
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Available end cap
DTC9
Available End Cap
DTC9
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)
3 3/4 in
Bolt Circle Radius (in)
3 3/4 in
Bolt hole circle diameter (in)
7 1/2 in
Bolt Hole Circle Diameter (in)
7 1/2 in
Bolt Size (in)
3 in
Bore length (in)
4 in
Bore Length (in)
4 in
Bore size (in)
3 in
Bore Size (in)
3 in
Cage Material
Engineered Polymer
Clearance
C3 STANDARD
Fixed vs. Expansion
Fixed
Grease Fitting Thread Size
1/8 NPT
Height
8.63
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
2300U
Length
8.63
Locking device kit
SC9
Locking Device Kit
SC9
Locking Type
Single Set Collar
Lubrication type
EXXON RONEX MP STD
Lubrication Type
EXXON RONEX MP STD
Maximum Speed (RPM)
1900 rpm
Mounting bolt size (in)
5/8 in
Mounting Bolt Size (in)
5/8 in
Net Weight
21.80
Primary seal
BUNA SGL lip light contact
Primary Seal
BUNA SGL LIP LIGHT CONTACT
Radial Dynamic Load Capacity (lb)
57750 lb
Radial Static Load Capacity (lb)
71500 lb
Retainer material
Engineered Polymer
Retainer Material
Engineered Polymer
Series
Flanged Cartridge Blocks
Size code
9
Size Code
9
Unit of dimension
in
Unit of Dimension
IN
Vibration frequency fundamental train
0.0072 cps
Vibration Frequency Fundamental Train
0.0072 cps
Vibration frequency inner ring defect
0.1701 cps
Vibration Frequency Inner Ring Defect
0.1701 cps
Vibration frequency outer ring defect
0.1299 cps
Vibration Frequency Outer Ring Defect
0.1299 cps
Vibration frequency roller spin
0.0591 cps
Vibration Frequency Roller Spin
0.0591 cps
Volume
0.048
Volume unit
Hectoliter
Volume Unit
Hectoliter
Weight unit
LB
Width
3.94
3" Mounted Spherical Roller Bearing, Cast Iron 4-Bolt Round Flange Cartridge Block, Single Setscrew Locking Collar, Single Lip Light Contact Seal
SKU: 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.
| Brand | PT Coupling |
| Model | 60624018L2 |
SKU: 1303956
Great service-fast shipping
Awesome service. I would highly recommend doing business with MRO! Price was cheapest anywhere
Read more