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Rex MA2300G 2000 series normal duty mounted spherical roller bearing with 3 in (76.2 mm) bore. Fixed cast iron 2-bolt pillow block housing, single setscrew locking collar, spring-loaded heavy contact lip seal. Type E bearing for industrial shaft support and self-alignment.
MODEL 10419805
Contact supplier for technical support on: 800-626-2120
$1,126.97 Each
Prices are subject to change
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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; G Triple Lip
Base Length (in)
10.44
Base to centerline height (in)
3 1/4 in
Base to Centerline Height (in)
3 1/4 in
Base Width (in)
3.19
Bearing Brand
REX ROLLER BEARING
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
Distance between bolt holes (in)
8 1/8 in
Distance Between Bolt Holes (in)
8 1/8 in
Distance from housing cast face to inner ring long hub face (in)
7/8 in
Distance from Housing Cast Face to Inner Ring Long Hub Face (in)
7/8 in
Fixed vs. Expansion
Fixed
Foot Height (in)
2
Grease Fitting Thread Size
1/8 NPT
Height
10.56
Housing Cast Face to Outermost Bearing Face (in)
0.88
Housing coating
Powder coated
Housing Coating
POWDER COATED
Housing Color
Black
Housing construction
Solid
Housing Construction
Solid
Housing material
Cast iron
Housing Material
Cast Iron
Housing style
Pillow block
Housing Style
Pillow Block
Housing type
Pillow Block, Two Bolt
Housing Type
Pillow Block, Two Bolt
Inner ring hub diameter (in)
3 3/8 in
Inner Ring Hub Diameter (in)
3 3/8 in
Inner Ring Outside Diameter (in)
3.37
Insert
2300UR
Length
6.56
Length Through Bore (in)
4
Locking collar outside diameter (in)
4 1/16 in
Locking Collar Outside Diameter (in)
4 1/16 in
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)
1700 rpm
Maximum Temperature (C)
107 C
Maximum Temperature (F)
225 F
Microlock kit
ML4
Microlock Kit
ML4
Misalignment Capability
±2.0° Misalignment - Dynamic
Misalignment Type
Dynamic
Mounting bolt hole slot length (in)
1 1/8 in
Mounting Bolt Hole Slot Length (in)
1 1/8 in
Mounting bolt size (in)
3/4 in
Mounting Bolt Size (in)
3/4 in
Mounting pad height (in)
2 in
Mounting Pad Height (in)
2 in
Mounting pad length (in)
10 7/16 in
Mounting Pad Length (in)
10 7/16 in
Mounting pad width (in)
3 3/16 in
Mounting Pad Width (in)
3 3/16 in
Net Weight
25.60
Overall Length (in)
10.44
Overall width
3.75
Primary seal
Buna spring loaded lip seal
Primary Seal
BUNA SPRING LOADED LIP SEAL
Radial Dynamic Load Capacity (lb)
57750 lb
Radial Static Load Capacity (lb)
71500 lb
Retainer material
Engineered Polymer
Retainer Material
Engineered Polymer
Rolling element
Spherical Roller
Seal kit
MS9
Seal Kit
MS9
Seal type
Heavy Contact Seal
Seal Type
Heavy Contact Seal
Series
Solid-housed Pillow Blocks
Setscrew torque (in-lbs)
680 in/lbs
Setscrew Torque (in-lbs)
680 in/lbs
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
1.275
Volume unit
GLL
Volume Unit
GLL
Weight unit
LB
Width
4.25
3" Mounted Spherical Roller Bearing, Fixed Cast Iron 2-Bolt Pillow Block, Single Setscrew Locking Collar, Spring Loaded Heavy Contact Seal, face locked cover
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.
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