All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Single Concentric Solid-Block Mounted Bearings > Single Concentric Two-Bolt Pillow Block > Part Number QAP18A308S  

Part Number QAP18A308S, Single Concentric Two-Bolt Pillow Block

    Download PDF Download PDF   
    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites
  

 




Specifications  · Dimensions  · Radial and Thrust Factors  · Engineering Seal Speed  · Engineering Bearing Attributes  · Engineering Internal Radial Clearance

Specifications

Engineering Group
Mounted Bearing

Bearing Number
22218

Shaft Size
3 1/2 in

Shaft Size Type
Imperial

Full Timken Part Number
QAP18A308SB
QAP18A308SC
QAP18A308SEB
QAP18A308SEC
QAP18A308SEM
QAP18A308SEN
QAP18A308SEO
QAP18A308SET
QAP18A308SM
QAP18A308SN
QAP18A308SO
QAP18A308ST
QAP18A308STNG

Locking Style
Single Concentric

Housing Construction
Two-Bolt Pillow Block

UPC Code
0883450045506
0883450045513
0883450045537
0883450045544
0883450045551
0883450045568
0883450045575
0883450045582
0883450187947
0883450188104
0883450265447
0883450265607
0883450472548


Dimensions

Dimension A
3.75 in
95.3 mm

Dimension B
7.69 in
195.3 mm

Dimension C
5.13 in
130.3 mm

Dimension D Min
9.38 in
238.3 mm

Dimension D Max
11.25 in
285.8 mm

Dimension F
13.5 in
342.9 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 KA
1.44 in
36.6 mm

Dimension L
4.3 in
109.2 mm

Dimension M
2.59 in
65.8 mm

Dimension RA
0.27 in
6.9 mm

Dimension SA
4.03 in
102.4 mm


Radial and Thrust Factors

C0 - Static Load
87200 lbf
388000 N

C - Dynamic Load (Basic)
79700 lbf
355000 N

e - Geometry Factor
0.23

Y1 - Geometry Factor
2.90

Y2 - Geometry Factor
4.31


Engineering Seal Speed

Oil Lubrication - M/N Seal
1400 rpm

Oil Lubrication - T Seal
2400 rpm

Oil Lubrication - B/C/O Seal
1000 rpm

Grease Lubrication - M/N Seal
1400 rpm

Grease Lubrication - T Seal
2000 rpm

Grease Lubrication - B/C/O Seal
1000 rpm


Engineering Bearing Attributes

Float
0.083 in
2.108 mm

Shaft Tolerance
0.0030 in
0.076 mm


Engineering Internal Radial Clearance

Eng Internal Radial Clearance - Min
0.0024

Eng Internal Radial Clearance - Max
0.0039

Pre Install Clearance Min
0.0024 in
0.060 mm

Pre Install Clearance Max
0.0039 in
0.100 mm



 DOWNLOADS 

Bearing Life Calculation Tool

Primary Sealing
(PDF, 411KB)

Secondary Sealing
(PDF, 720KB)

TIMKEN® SPHERICAL ROLLER BEARING SOLID-BLOCK MOUNTED BEARINGS