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Rex ZFS92034078 9000 series adapter-mounted spherical roller bearing in a square flange expansion housing. 2-3/16 in (55.56 mm) bore, cast iron 4-bolt flange block, standard Z clearance seal, drilled auxiliary cap variant. Designed for expansion applications requiring axial shaft movement.
MODEL 10427993
Contact supplier for technical support on: 800-626-2120
$1,569.69 Each
Prices are subject to change
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Typically Ships in: 1 day
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
Bearing Brand
REX ROLLER BEARING
Bearing housing
FLG BLK 4 BLT SQ TYPE ZF
Bearing housing material
Cast iron
Bearing Type
Spherical roller brg
Bolt circle radius (in)
3 9/16 in
Bolt Circle Radius (in)
3 9/16 in
Bolt hole circle diameter (in)
7 1/8 in
Bolt Hole Circle Diameter (in)
7 1/8 in
Bolt Size (in)
2.1875 in
Bore length (in)
3 11/32 in
Bore Length (in)
3 11/32 in
Bore Size (in)
2.1875 in
C dynamic load rating
43240 lb
Cage Material
Steel
Clearance
C3 STANDARD
Co static load rating
53500 lb
Distance between bolt holes (in)
5 1/32 in
Distance Between Bolt Holes (in)
5 1/32 in
Distance from housing cast face to locking feature face (in)
11/32 in
Distance from Housing Cast Face to Locking Feature Face (in)
11/32 in
Expansion Capability (in)
0.38
Expansion lock plug
105-95008-25
Expansion Lock Plug
105-95008-25
Fixed expansion
EXP
Fixed vs. Expansion
Expansion
Foot Height (in)
0.75
Grease fitting size
1/8 NPT
Grease Fitting Thread Size
1/8 NPT
Height
6.88
Housing Cast Face to Outermost Bearing Face (in)
0.34
Housing coating
Powder coated
Housing Coating
POWDER COATED
Housing Construction
Solid
Housing Material
Cast Iron
Housing Style
Flange Block
Housing Type
Flange, Four Bolt
Housing width (in)
6 7/16 in
Housing Width (in)
6 7/16 in
Inner Ring Outside Diameter (in)
2.901
Insert
9203U78
Length
6.88
Length Through Bore (in)
3.34
Locking collar outside diameter (in)
3.38
Locking device kit
AK8203
Locking Device Kit
AK8203
Locking Type
Tapered Adapter
Locknut outside diameter
3 3/8 in
Locknut Outside Diameter (in)
3 3/8 in
Lubrication type
Preservative only - no grease
Lubrication Type
PRESERVATIVE ONLY - NO GREASE
Max Speed
3300 rpm
Max temperature (°F (°C))
225 (107) F (C)
Maximum Speed (RPM)
3300 rpm
Maximum Temperature (C)
107 C
Maximum Temperature (F)
225 F
Microlock kit
ML3
Microlock Kit
ML3
Misalignment Capability
±2.0° Misalignment - Dynamic
Misalignment Type
Dynamic
Mounted clearance
C3 standard
Mounting bolt size (in)
5/8 in
Mounting Bolt Size (in)
5/8 in
Mounting pad height (in)
3/4 in
Mounting Pad Height (in)
3/4 in
Net Weight
19.40
Overall Length (in)
6.44
Overall width
6.44
Primary seal
Steel clearance seal
Primary Seal
STEEL CLEARANCE SEAL
Radial Dynamic Load Capacity (lb)
43240 lb
Radial Static Load Capacity (lb)
53500 lb
Retainer Material
Steel
Retainer type
Steel
Seal kit
ZS8
Seal Kit
ZS8
Seal Type
Labyrinth Seal
Service instructions
BR3-001 REX 2, 3, 5, 6, 9000
Shaft diameter (in)
2 3/16 in
Shaft locking
Tapered adapter mount
Shaft locking collar kit/adapter assembly
AK8203
Shaft Locking Collar Kit/Adapter Assembly
AK8203
Size code
8
Size Code
8
Special lube percent
0% fill
Special Lube Percent
0% FILL
Standoff distance (in)
5/16 in
Standoff Distance (in)
5/16 in
Threaded cover kit
TC8
Type of seal
Clearance seal
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
0.1791 cps
Vibration Frequency Inner Ring Defect
0.1791 cps
Vibration frequency outer ring defect
0.1376 cps
Vibration Frequency Outer Ring Defect
0.1376 cps
Vibration frequency roller spin
0.0607 cps
Vibration Frequency Roller Spin
0.0607 cps
Volume
0.998
Volume unit
GLL
Volume Unit
GLL
Weight unit
LB
Width
4.88
2 3/16" Mounted Spherical Roller Bearing, Expansion Cast Iron 4-Bolt Square Flange Block, Adapter Mounted, Clearance Seal, No Grease, Steel Retainers
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.
