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Timken QMPL18J303ST is a low-profile two-bolt pillow block mounted spherical roller bearing. This housed unit features a heavy-duty cast iron housing, a spherical roller bearing insert for self-alignment, and a two-setscrew locking mechanism. It is designed for applications requiring a lower mounting height, such as conveyors, fans, and industrial machinery where space is constrained.
MODEL QMPL18J303ST
$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 3/16 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
QMPL18J303SB QMPL18J303SC QMPL18J303SEB QMPL18J303SEC QMPL18J303SEM QMPL18J303SEN QMPL18J303SEO QMPL18J303SET QMPL18J303SM QMPL18J303SN QMPL18J303SO QMPL18J303ST
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 3/16 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
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