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Spherical Roller Bearing Solid-Block Housed Units
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Housed Unit Bearings
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Spherical Roller Bearing Solid-Block Housed Units
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Timken Part Number QAATU20A315S
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Timken Part Number QAATU20A315S, Double Concentric
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Spherical Roller Bearing Solid-Block Housed Units feature rugged cast-steel housings and double-row spherical roller bearings. Designed to offer protection from contaminants, these housed units accommodate shaft sizes from 1-7/16” to 7” (40 mm to 180 mm) and most metric sizes. This product line was formerly known as “QM Blue Brute Bearings.”
Note:
Some products have both imperial and metric dimensions. Selecting “Metric” below will hide the imperial dimensions. Selecting “Both” will display all dimensions.
Unit of Measure:
Imperial |
Metric |
Both
Specifications
·
Dimensions
·
Radial and Thrust Factors
·
Eng Seal Speed
·
Eng Bearing Attributes
·
Eng Internal Radial Clearance
Specifications
Engineering Group
Mounted Bearing
Bearing Number
22220
Shaft Size
3-15/16 in
Shaft Size Type
Imperial
Weight
58.000 lb
Locking Style
Double Concentric
Full Timken Part Number
QAATU20A315S
QAATU20A315SB
QAATU20A315SC
QAATU20A315SEB
QAATU20A315SEC
QAATU20A315SEM
QAATU20A315SEN
QAATU20A315SEO
QAATU20A315SET
QAATU20A315SM
QAATU20A315SN
QAATU20A315SO
QAATU20A315ST
Dimensions
Dimension A
4.1300 in
Dimension C
1.13 in
Dimension D
9.440 in
Dimension E
8.6300 in
Dimension F
2.130 in
Dimension G
2.060 in
Dimension J
5.6300 in
Dimension L
11.6900 in
Dimension M
2.97 in
Dimension N
4.79 in
Dimension P
7.00 in
Dimension S
2.06 in
Radial and Thrust Factors
C - Dynamic Load (Basic)
97700 lb
435 kN
C0 - Dynamic Load (Static)
113000 lb
502 kN
e - Geometry Factor
0.24
Y1 - Geometry Factor
2.84
Y2 - Geometry Factor
4.23
Eng Seal Speed
Oil Lubrication - M/N Seal
1200 rpm
Oil Lubrication - T Seal
2000 rpm
Oil Lubrication - B/C/O Seal
900 rpm
Grease Lubrication - M/N Seal
1200 rpm
Grease Lubrication - T Seal
1600 rpm
Grease Lubrication - B/C/O Seal
900 rpm
Eng Bearing Attributes
Float
0.083 in
2.108 mm
Shaft Tolerance
0.003 in
0.076 mm
Eng Internal Radial Clearance
Eng Internal Radial Clearance - Min
0.0030
Eng Internal Radial Clearance - Max
0.0047
Pre Install Clearance Min
0.075 mm
Pre Install Clearance Max
0.120 mm
DOWNLOADS
Eng Seal Temperatures
(JPG, 26KB)
Eng Mounted Bearing Load Ratings
(JPG, 25KB)
QAATU20A315S.dxf
QAATU20A315S.igs
QAATU Series IPart.ipt
Bearing Life Calculator
Bearing Life Calculator
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The Timken Company. ©
The Timken Company. 
©
The Timken Company.