Montage of Timken Bearing Products 
Search Catalog
        
 All Product Types    Single Concentric Four-Bolt Pillow Block
View Cart View RFQs Express Ordering  | Shipping 
 | Tax 
 | Terms
 Shopping Cart 0 Items
 Request for Quote 0 Items
All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Mounted Solid-Block Spherical Roller Bearings > Single Concentric Solid-Block Mounted Bearings > Single Concentric Four-Bolt Pillow Block > Part Number QAPR18A308S  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites
Add To Cart Request Quote

Part Number QAPR18A308S, Single Concentric Four-Bolt Pillow Block


 



Unit of Measure: Imperial Metric Both

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
QAPR18A308SB
QAPR18A308SC
QAPR18A308SEB
QAPR18A308SEC
QAPR18A308SEM
QAPR18A308SEN
QAPR18A308SEO
QAPR18A308SET
QAPR18A308SETNG
QAPR18A308SM
QAPR18A308SN
QAPR18A308SO
QAPR18A308ST

Locking Style
Single Concentric

Housing Construction
Four-Bolt Pillow Block

UPC Code
0883450049306
0883450049313
0883450049337
0883450049344
0883450049351
0883450049368
0883450049375
0883450049382
0883450189811
0883450189927
0883450267175
0883450267281
0883450500128


Dimensions

Dimension A
3-3/4 in
95.3 mm

Dimension B
7.69 in
195.3 mm

Dimension C
5.13 in
130.3 mm

Dimension D Min
9.25 in
235 mm

Dimension D Max
11.25 in
285.8 mm

Dimension E
2.38 in
60.5 mm

Dimension F
13.63 in
346.2 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 KA
1.44 in
36.6 mm

Dimension L
4.47 in
113.5 mm

Dimension M
2.59 in
65.8 mm

Dimension RA
0.31 in
7.9 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

Eng Seal Temperatures

TIMKEN® SPHERICAL ROLLER BEARING SOLID-BLOCK MOUNTED BEARINGS


Add To Cart Request Quote
<