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Timken QMPL18J308SB is a low-profile two-bolt pillow block mounted spherical roller bearing unit. This housed unit features an adapter mount (SB) locking style for secure shaft attachment and is built on a heavy-duty frame size 18. It is designed for applications requiring a lower profile housing with high load capacity and self-alignment, such as conveyors, fans, and industrial machinery.
MODEL QMPL18J308SB
$851.14 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
235 mm Dimension J (Bolt Size)
0.875 in
24 mm Dimension R
0.28 in
273.1 mm Dimension D Min
9.25 in
7.1 mm Eng Internal Radial Clearance - Max
0.0039 Eng Internal Radial Clearance - Min:0.0024 Engineering group:Mounted Bearing Float:0.083 in
95.3 mm Dimension D Max
10.75 in
Bearing number
22218 C - Dynamic Load (Basic):79700 lbf 355000 N C0 - Static Load:87200 lbf 388000 N Dimension:3.75 in
Bearing Number
22218
C - Dynamic Load (Basic)
79700 lbf 355000 N
C0 - Static Load
87200 lbf 388000 N
Dimension A
3.75 in 95.3 mm
Dimension B
7.69 in 195.3 mm
Dimension C
4.76 in 120.9 mm
Dimension D Max
10.75 in 273.1 mm
Dimension D Min
9.25 in 235 mm
Dimension F
13 in 330.2 mm
Dimension G
3.41 in 86.6 mm
Dimension H
1.88 in 47.8 mm
Dimension J (Bolt Size)
0.875 in 24 mm
Dimension K
1.44 in 36.6 mm
Dimension L
4.3 in 109.2 mm
Dimension M
2.59 in 65.8 mm
Dimension R
0.28 in 7.1 mm
Dimension S
4.03 in 102.4 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
QMPL18J308SB QMPL18J308SC QMPL18J308SEB QMPL18J308SEC QMPL18J308SEM QMPL18J308SEN QMPL18J308SEO QMPL18J308SET QMPL18J308SM QMPL18J308SN QMPL18J308SO QMPL18J308ST
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
Two-Bolt Pillow Block
Locking Style
Eccentric
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
2-Bolt Pillow Block Bearings The TIMKEN QMPL18J308SB SRB Housed Unit is a premium-quality 2-bolt pillow block bearing designed to offer superior performance in various industrial applications. This robust bearing unit combines Timken's innovative engineering with a proven design to deliver exceptional reliability, efficiency, and ease of installation.
Key Features
- Durable Construction: Manufactured with high-quality materials, the QMPL18J308SB features a robust housing designed to withstand harsh operating conditions.
- Precision Engineering: This bearing unit is engineered for precise alignment and load distribution, ensuring optimal performance in demanding applications.
- Easy Installation: The 2-bolt design allows for quick and straightforward mounting, making it suitable for various industrial setups.
- Versatile Compatibility: Ideal for use in diverse environments, the pillow block bearing can accommodate a wide range of shaft sizes and configurations.
- Enhanced Lubrication: Integrated lubrication grooves promote efficient grease distribution, reducing wear and extending service life.
Applications
- Industrial Machinery: Perfect for conveyor systems, gearboxes, and various machinery requiring reliable and robust bearing solutions.
- Automotive: Suitable for applications in automotive manufacturing and maintenance where high load capacities and precision are critical.
- Aerospace: Effective in aerospace components where reliability and performance under extreme conditions are paramount.
Benefits
- Increased Reliability: Timken's engineering expertise ensures that the QMPL18J308SB operates consistently, reducing the risk of downtime and maintenance costs.
- Extended Service Life: The quality construction and advanced design features contribute to a longer lifespan, providing excellent value over time.
- Improved Operational Efficiency: The precision and reliability of this bearing unit enhance overall machine performance, leading to increased 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