TIMKEN QAATU18A308SM SRB Housed Unit

0.060 mm Shaft Size

3 1/2 in Shaft Tolerance:0.0030 in

0.076 mm Shaft dia (in)

3-1/2 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

92.2 mm Eng Internal Radial Clearance - Max

0.0039 Eng Internal Radial Clearance - Min:0.0024 Engineering group:Mounted Bearing Float:0.08 in

Bearing number

22218

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 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

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

0.08 in 2.03 mm

Full Timken Part Number

QAATU18A308SB QAATU18A308SC QAATU18A308SEB QAATU18A308SEC QAATU18A308SEM QAATU18A308SEN QAATU18A308SEO QAATU18A308SET QAATU18A308SM QAATU18A308SN QAATU18A308SO QAATU18A308ST

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

Housing Construction

Take-Up

Locking style

Double Concentric

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

0.0039 in 0.100 mm

Pre Install Clearance Min

0.0024 in 0.060 mm

Shaft dia (in)

3-1/2

Shaft Size

3 1/2 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