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0.0024 mm Shaft Size
3 1/2 in Shaft Tolerance:0.0030 in
0.0039 mm Pre Install Clearance Min
0.060 in
0.076 mm Shaft size type
Imperial Y1 - Geometry Factor:2.90 Y2 - Geometry Factor:4.31 e - Geometry Factor:0.23
106.4 mm Dimension RAA
1 in
108.5 mm Dimension L Fix
4.19 in
130.2 mm Dimension B Exp
2.96 in
131.8 mm Eng Internal Radial Clearance - Max
0.0039 Eng Internal Radial Clearance - Min:0.0024 Engineering group:Mounted Bearing Float:0.083 in
20 mm Dimension L Exp
4.27 in
219.2 mm Dimension J (Bolt Size)
0.75 in
25.4 mm Dimension SAA
5.19 in
73.2 mm Dimension BC
8.63 in
75.2 mm Dimension B Fix
2.88 in
Bearing number
22218 C - Dynamic Load (Basic):79700 lbf 355000 N C0 - Static Load:87200 lbf 388000 N Dimension:5.125 in
Bearing Number
22218
C - Dynamic Load (Basic)
79700 lbf 355000 N
C0 - Static Load
87200 lbf 388000 N
Dimension B Exp
2.96 in 75.2 mm
Dimension B Fix
2.88 in 73.2 mm
Dimension BC
8.63 in 219.2 mm
Dimension C
5.125 in 130.2 mm
Dimension D
7.38 in 187.5 mm
Dimension E
6.1 in 154.9 mm
Dimension F
10.34 in 262.6 mm
Dimension G
7.375 in 187.3 mm
Dimension H
1 in 25.4 mm
Dimension J (Bolt Size)
0.75 in 20 mm
Dimension L Exp
4.27 in 108.5 mm
Dimension L Fix
4.19 in 106.4 mm
Dimension M
2.59 in 65.8 mm
Dimension N
1.31 in 33.3 mm
Dimension RAA
1 in 25.4 mm
Dimension SAA
5.19 in 131.8 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
0.083 in 2.108 mm
Full Timken Part Number
QAAC18A308SB QAAC18A308SC QAAC18A308SEB QAAC18A308SEC QAAC18A308SEM QAAC18A308SEN QAAC18A308SEO QAAC18A308SET QAAC18A308SM QAAC18A308SN QAAC18A308SO QAAC18A308ST
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
Piloted Flange Cartridge
Locking Style
Double 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
0.100 in 0.0039 mm
Pre Install Clearance Min
0.060 in 0.0024 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
# Bearings The **Timken QAAC18A308ST SRB Housed Unit** is a high-performance piloted flange bearing designed to provide exceptional reliability and efficiency in various industrial applications. Engineered with precision, this housed unit integrates a robust design and advanced materials to ensure optimal performance under demanding conditions. ## Key Features • **High Load Capacity:** Designed to handle significant radial and axial loads, ensuring durability and longevity in tough operational environments. • **Sealed Design:** Equipped with effective sealing solutions to prevent contamination and retain lubrication, thereby reducing maintenance intervals. • **Robust Construction:** Made from high-quality materials that enhance wear resistance and extend the service life of the bearing. • **Easy Installation:** The piloted flange design facilitates straightforward mounting and alignment, minimizing installation time and complexity. • **Versatile Applications:** Suitable for a wide range of industrial applications, including conveyors, material handling, and manufacturing equipment. ## Applications • **Industrial Machinery:** Ideal for use in manufacturing equipment, where heavy loads and continuous operation are common. • **Material Handling Systems:** Perfect for conveyors and other material handling systems that require reliable and efficient motion. • **Automotive Applications:** Compatible with various automotive systems that demand high-performance bearings for smooth operation. ## Benefits • **Increased Reliability:** Timken's engineering excellence ensures that the QAAC18A308ST provides superior performance, reducing the risk of unexpected downtime. • **Enhanced Efficiency:** The optimized design reduces friction and energy consumption, contributing to overall system efficiency. • **Longer Service Life:** With advanced sealing and robust construction, this bearing unit is built to last, minimizing the need for frequent replacements. --- *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
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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