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Timken QATU18A308ST is a spherical roller take-up bearing unit (SRB housed unit) with a frame size 18. This mounted bearing features a setscrew locking style for shaft attachment. It is designed for adjustable conveyor and power transmission applications requiring heavy radial load capacity and self-alignment.
MODEL QATU18A308ST
$995.91 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable:No
0.060 mm Shaft Size
3 1/2 in Shaft Tolerance:0.0030 in
0.076 mm Shaft size type
Imperial Y1 - Geometry Factor:2.90 Y2 - Geometry Factor:4.31 e - Geometry Factor:0.23
0.100 mm Pre Install Clearance Min
0.0024 in
25.4 mm Dimension A1
3.63 in
36.6 mm Eng Internal Radial Clearance - Max
0.0039 Eng Internal Radial Clearance - Min:0.0024 Engineering group:Mounted Bearing Float:0.08 in
92.2 mm Dimension KA
1.44 in
Bearing number
22218 C - Dynamic Load (Basic):79700 lbf 355000 N C0 - Static Load:87200 lbf 388000 N Dimension:1 in
Bearing Number
22218
C - Dynamic Load (Basic)
79700 lbf 355000 N
C0 - Static Load
87200 lbf 388000 N
Dimension A1
3.63 in 92.2 mm
Dimension C
1 in 25.4 mm
Dimension D
7.63 in 193.8 mm
Dimension E
6.81 in 173 mm
Dimension F
1.81 in 46 mm
Dimension G
1.88 in 47.8 mm
Dimension J
4.88 in 124 mm
Dimension KA
1.44 in 36.6 mm
Dimension L
10.12 in 257 mm
Dimension M
2.59 in 65.8 mm
Dimension N
4.22 in 107.2 mm
Dimension P
6.25 in 158.8 mm
Dimension S
1.81 in 46 mm
Dynamic Load (Basic)
79700 lbf
e - Geometry Factor
0.23
Eng Internal Radial Clearance - Max
0.0039
Eng Internal Radial Clearance - Min
0.0024
Eng Internal Radial ClearancMax
0.0039
Eng Internal Radial ClearancMin
0.0024
Engineering Group
Mounted Bearing
Float
0.08 in 2.03 mm
Full Timken Part Number
QATU18A308SB QATU18A308SC QATU18A308SEB QATU18A308SEC QATU18A308SEM QATU18A308SEN QATU18A308SEO QATU18A308SET QATU18A308SM QATU18A308SN QATU18A308SO QATU18A308ST
Geometry Factor
4.31
Grease Lubrication - B/C/O Seal
1000 rpm
Grease Lubrication - M/N Seal
1400 rpm
Grease Lubrication - T Seal
2000 rpm
Housing Construction
Take-Up
Locking Style
Single Concentric
Oil Lubrication - B/C/O Seal
1000 rpm
Oil Lubrication - M/N Seal
1400 rpm
Oil Lubrication - T Seal
2400 rpm
Pre Install Clearance Max
0.0039 in 0.100 mm
Pre Install Clearance Min
0.0024 in 0.060 mm
Shaft Size
3 1/2 in
Shaft Size Type
Imperial
Shaft Tolerance
0.0030 in 0.076 mm
Static Load
87200 lbf
Y1 - Geometry Factor
2.90
Y2 - Geometry Factor
4.31
Take-Up Bearing Units The TIMKEN QATU18A308ST SRB Housed Unit is a high-performance bearing solution designed to deliver exceptional reliability and efficiency in various industrial applications. Engineered by Timken, a leader in the bearings industry, this unit is ideal for systems requiring robust support and precise alignment.
Key Features
- Durable Construction: Built from high-grade materials, this housed unit features a heavy-duty steel housing that provides excellent resistance to wear and fatigue, ensuring long-lasting performance in demanding environments.
- Precision Engineering: Designed with Timken's advanced manufacturing techniques, the QATU18A308ST guarantees optimal alignment and minimal friction, contributing to smoother operations and extended service life.
- Sealed Design: The integrated seals protect against contaminants and moisture, making this bearing unit suitable for harsh operating conditions and reducing maintenance needs.
- Easy Installation: The take-up design allows for straightforward adjustments and installations, simplifying maintenance processes and reducing downtime.
- Versatile Compatibility: This unit is compatible with various shaft sizes, offering flexibility in application across multiple industries.
Applications
- Industrial Machinery: Ideal for conveyor systems, processing equipment, and material handling applications where reliable performance is crucial.
- Automotive: Suitable for automotive manufacturing processes that demand precision and durability in component support.
- Aerospace and Energy: The QATU18A308ST can be employed in high-stakes environments, ensuring consistent performance under rigorous conditions.
Benefits
- Enhanced Reliability: Timken's commitment to quality ensures that this bearing unit operates efficiently over extended periods, minimizing unexpected failures.
- Improved Performance: With reduced friction and effective sealing, users experience lower energy consumption and better overall system efficiency.
- Cost-Effective Solution: The durable design and easy installation procedures translate to lower maintenance costs and minimized operational disruptions, ultimately enhancing productivity. --- Product information compiled with AI assistance for reference purposes.
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
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.
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SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more