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Rex MAS2203C 2000 series normal duty mounted adapter spherical pillow block bearing with 2-3/16 in (55.56 mm) bore. This expansion unit features a cast steel 2-bolt pillow block housing, single setscrew locking collar, and spring-loaded heavy contact lip seal with closed end cap.
MODEL 10407831
This product has a minimum order quantity of (10 minimum) This is the minimum order quantity available when purchasing this product.
Contact supplier for technical support on: 800-626-2120
$1,695.34 Each
Prices are subject to change
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Select Quantity(10 minimum)
Typically Ships in: 1 day
Returnable: See conditions
Ability to Relubricate
Yes
Auxiliary cap kit
C7
Auxiliary seals
1 CLOSED CAP STEEL SHORT HUB
Auxiliary Seals
1 CLOSED CAP STEEL SHORT HUB
Available end cap
C7
Available End Cap
C7
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)
8.63
Base to centerline height (in)
2 1/2 in
Base to Centerline Height (in)
2 1/2 in
Base Width (in)
2.56
Bearing Brand
REX ROLLER BEARING
Bolt Size (in)
2.1875 in
Bore length (in)
3 5/16 in
Bore Length (in)
3 5/16 in
Bore size (in)
2.1875 in
Bore Size (in)
2.1875 in
Cage Material
Engineered Polymer
Clearance
C3 STANDARD
Distance between bolt holes (in)
6 3/4 in
Distance Between Bolt Holes (in)
6 3/4 in
Expansion Capability (in)
0.38
Expansion lock plug
B224408A
Expansion Lock Plug
B224408A
Fixed vs. Expansion
Expansion
Foot Height (in)
1.63
Grease Fitting Thread Size
1/8 NPT
Height
5.50
Housing Cast Face to Outermost Bearing Face (in)
0.78
Housing coating
Powder coated
Housing Coating
POWDER COATED
Housing Color
Black
Housing construction
Solid
Housing Construction
Solid
Housing material
Cast steel
Housing Material
Cast Steel
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)
2 5/8 in
Inner Ring Hub Diameter (in)
2 5/8 in
Inner Ring Outside Diameter (in)
2.62
Insert
MCS2203C
Length
9.56
Length Through Bore (in)
3.32
Locking collar outside diameter (in)
3 1/4 in
Locking Collar Outside Diameter (in)
3 1/4 in
Locking device kit
SC7
Locking Device Kit
SC7
Locking Type
Single Set Collar
Lubrication type
EXXON RONEX MP STD
Lubrication Type
EXXON RONEX MP STD
Maximum Speed (RPM)
2200 rpm
Maximum Temperature (C)
107 C
Maximum Temperature (F)
225 F
Misalignment Capability
±2.0° Misalignment - Dynamic
Misalignment Type
Dynamic
Mounting bolt hole slot length (in)
1 in
Mounting Bolt Hole Slot Length (in)
1 in
Mounting bolt size (in)
5/8 in
Mounting Bolt Size (in)
5/8 in
Mounting pad height (in)
1 5/8 in
Mounting Pad Height (in)
1 5/8 in
Mounting pad length (in)
8 5/8 in
Mounting Pad Length (in)
8 5/8 in
Mounting pad width (in)
2 9/16 in
Mounting Pad Width (in)
2 9/16 in
Net Weight
13.50
Overall Length (in)
8.63
Overall width
3.32
Primary seal
Buna spring loaded lip seal
Primary Seal
BUNA SPRING LOADED LIP SEAL
Radial Dynamic Load Capacity (lb)
36370 lb
Radial Static Load Capacity (lb)
44400 lb
Retainer material
Engineered Polymer
Retainer Material
Engineered Polymer
Rolling element
Spherical Roller
Seal kit
MS7
Seal Kit
MS7
Seal type
Heavy Contact Seal
Seal Type
Heavy Contact Seal
Series
Solid-housed Pillow Blocks
Setscrew torque (in-lbs)
460 in/lbs
Setscrew Torque (in-lbs)
460 in/lbs
Size code
7
Size Code
7
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
0.1790 cps
Vibration Frequency Inner Ring Defect
0.1790 cps
Vibration frequency outer ring defect
0.1377 cps
Vibration Frequency Outer Ring Defect
0.1377 cps
Vibration frequency roller spin
0.0606 cps
Vibration Frequency Roller Spin
0.0606 cps
Volume
0.911
Volume unit
GLL
Volume Unit
GLL
Weight unit
LB
Width
4.00
2 3/16" Mounted Spherical Roller Bearing, Expansion Cast Steel 2-Bolt Pillow Block Unit, Single Setscrew Locking Collar, Spring Loaded Heavy Contact Seal, Closed End Cap
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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