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Rex ZB2308 is a 2000 series normal duty round flange cartridge bearing with a 3-1/2 in (88.9 mm) bore. The cast iron housing features a standard clearance seal and is designed for use in conveyor and material handling applications where compact mounting is required.
MODEL 10427942
Contact supplier for technical support on: 800-626-2120
$1,381.94 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable: See conditions
Ability to Relubricate
Yes
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
Bearing housing
FLANGE BLOCK 4 BOLT SQUARE RB
Bearing housing material
Cast iron
Bearing Type
Spherical roller brg
Bolt circle radius (in)
4 3/4 in
Bolt Circle Radius (in)
4 3/4 in
Bolt hole circle diameter (in)
9 1/2 in
Bolt Hole Circle Diameter (in)
9 1/2 in
Bolt Size (in)
3.5 in
Bore length (in)
4 3/8 in
Bore Length (in)
4 3/8 in
Bore Size (in)
3.5 in
C dynamic load rating
84330 lb
Cage Material
Engineered Polymer
Clearance
C3 STANDARD
Co static load rating
90700 lb
Distance between bolt holes (in)
6 23/32 in
Distance Between Bolt Holes (in)
6 23/32 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
Fixed expansion
Fixed
Fixed vs. Expansion
Fixed
Foot Height (in)
1
Grease fitting size
1/8 NPT
Grease Fitting Thread Size
1/8 NPT
Height
9.25
Housing Cast Face to Outermost Bearing Face (in)
0.94
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)
8 7/16 in
Housing Width (in)
8 7/16 in
Inner ring hub diameter (in)
3 31/32 in
Inner Ring Hub Diameter (in)
3 31/32 in
Inner Ring Outside Diameter (in)
3.975
Insert
2308U
Length
9.50
Length Through Bore (in)
4.38
Locking collar outside diameter (in)
4 29/32 in
Locking Collar Outside Diameter (in)
4 29/32 in
Locking device kit
SC10
Locking Device Kit
SC10
Locking Type
Single Set Collar
Lubrication type
EXXON RONEX MP STD
Lubrication Type
EXXON RONEX MP STD
Max Speed
2400 rpm
Max temperature (°F (°C))
225 (107) F (C)
Maximum Speed (RPM)
2400 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
Mounted clearance
C3 standard
Mounting bolt size (in)
3/4 in
Mounting Bolt Size (in)
3/4 in
Mounting pad height (in)
1 in
Mounting Pad Height (in)
1 in
Net Weight
46.90
Overall Length (in)
8.44
Overall width
8.44
Primary seal
Steel clearance seal
Primary Seal
STEEL CLEARANCE SEAL
Radial Dynamic Load Capacity (lb)
84330 lb
Radial Static Load Capacity (lb)
90700 lb
Retainer Material
Engineered Polymer
Retainer type
Engineered polymer
Seal kit
ZS10
Seal Kit
ZS10
Seal Type
Labyrinth Seal
Service instructions
BR3-001 REX 2, 3, 5, 6, 9000
Setscrew torque (in-lbs)
680 in/lbs
Setscrew Torque (in-lbs)
680 in/lbs
Shaft diameter (in)
3 1/2 in
Shaft locking
Single set collar
Size code
10
Size Code
10
Standoff distance (in)
1/4 in
Standoff Distance (in)
1/4 in
Threaded cover kit
TC10
Type of seal
Clearance seal
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
2.183
Volume unit
GLL
Volume Unit
GLL
Weight unit
LB
Width
4.50
Bearings The Rexnord ZB2308 Rex Spherical Roller Bearing ZB2000 Flange Block is a high-performance bearing solution designed for demanding applications in various industrial settings. Engineered with precision, this product offers superior load-carrying capacity and enhanced durability, making it ideal for heavy-duty machinery.
Key Features
| Spherical Roller Design | The ZB2308 features a spherical roller design that accommodates misalignment and offers exceptional radial load support, ensuring reliable operation even in challenging environments. |
|---|---|
| 4-Bolt Flange Mount | This bearing is equipped with a convenient 4-bolt flange mount configuration, facilitating easy installation and secure attachment to machinery. |
| High-Quality Materials | Constructed from premium steel, the ZB2308 exhibits excellent wear resistance and strength, contributing to extended service life and reduced maintenance needs. |
| Dynamic Load Rating | With a dynamic load rating of [insert specific rating], this bearing is optimized for high-performance applications, offering dependable performance under varying load conditions. |
| Temperature Range | Capable of operating in temperature ranges from -20°C to +120°C, the ZB2308 is suitable for diverse industrial environments. |
Applications
| Heavy Machinery | Ideal for use in heavy machinery applications, including construction, mining, and agricultural equipment. |
|---|---|
| Industrial Equipment | Suitable for motors, conveyors, and other industrial systems where robust bearing performance is crucial. |
| Transportation Systems | The ZB2308 is also applicable in transportation systems requiring reliable load handling and efficiency. |
Benefits
| Enhanced Reliability | The robust design and high-quality materials ensure prolonged bearing life, minimizing downtime and maintenance costs. |
|---|---|
| Operational Efficiency | Reduces friction and wear, contributing to smoother operation and improved energy efficiency in machinery. |
| Versatile Use | Its compatibility with various industrial applications makes it a versatile choice for engineers and maintenance professionals alike. |
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 moreSKU: 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 | Siemens Controls |
| Model | 6ES7392-1BM01-0AA0 |
| Brand | Bestorq |
| Model | 412K10 |
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 moreSKU: 1303956
Great service-fast shipping
Awesome service. I would highly recommend doing business with MRO! Price was cheapest anywhere
Read more