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Timken QMPF18J307SM is a piloted flange cartridge mounted spherical roller bearing with a 3 7/16 inch bore and eccentric locking style. This housed unit features a 22218 spherical roller bearing insert within a frame size 18 housing, designed for heavy-duty applications requiring high radial load capacity and self-alignment. The piloted flange mounting provides precise location and stability for industrial drives and machinery.
MODEL QMPF18J307SM
$1,249.26 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable:No
0.060 mm Shaft Size
3 7/16 in Shaft Tolerance:0.0030 in
0.076 mm Shaft dia (in)
3 7/16 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
20 mm Dimension R
0.32 in
225.6 mm Dimension J (Bolt Size)
0.75 in
276.4 mm Dimension D Min
8.88 in
8.1 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
10.88 in
Bearing number
22218
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
10.88 in 276.4 mm
Dimension D Min
8.88 in 225.6 mm
Dimension E
2 in 50.8 mm
Dimension F
12.3 in 312.4 mm
Dimension G
3.75 in 95.3 mm
Dimension H
1.56 in 39.6 mm
Dimension J (Bolt Size)
0.75 in 20 mm
Dimension K
1.44 in 36.6 mm
Dimension L
4.46 in 113.3 mm
Dimension M
2.59 in 65.8 mm
Dimension R
0.32 in 8.1 mm
Dimension S
4.03 in 102.4 mm
e - Geometry Factor
0.23
Eng Internal Radial Clearance - Max
0.0039
Eng Internal Radial Clearance - Min
0.0024
Engineering group
Mounted Bearing
Engineering Group
Mounted Bearing
Float
0.083 in 2.108 mm
Full Timken Part Number
QMPF18J307SB QMPF18J307SC QMPF18J307SEB QMPF18J307SEC QMPF18J307SEM QMPF18J307SEN QMPF18J307SEO QMPF18J307SET QMPF18J307SM QMPF18J307SN QMPF18J307SO QMPF18J307ST
Grease Lubrication - B/C/O Seal
1000 rpm
Grease Lubrication - M/N Seal
1400 rpm
Grease Lubrication - T Seal
2000 rpm
Housing construction
Four-Bolt Pillow Block
Housing Construction
Four-Bolt Pillow Block
Locking style
Eccentric
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 dia (in)
3 7/16
Shaft Size
3 7/16 in
Shaft size type
Imperial
Shaft Size Type
Imperial
Shaft Tolerance
0.0030 in 0.076 mm
Y1 - Geometry Factor
2.90
Y2 - Geometry Factor
4.31
Full timken part number: QMPF18J307SB QMPF18J307SC QMPF18J307SEB QMPF18J307SEC QMPF18J307SEM QMPF18J307SEN QMPF18J307SEO QMPF18J307SET QMPF18J307SM QMPF18J307SN QMPF18J307SO QMPF18J307ST
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