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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 QAC20A400S
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Timken Part Number QAC20A400S, Single 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
4 in
Shaft Size Type
Imperial
Weight
43.000 lb
Locking Style
Single Concentric
Full Timken Part Number
QAC20A400S
QAC20A400SB
QAC20A400SC
QAC20A400SEB
QAC20A400SEC
QAC20A400SEM
QAC20A400SEN
QAC20A400SEO
QAC20A400SET
QAC20A400SM
QAC20A400SN
QAC20A400SO
QAC20A400ST
Dimensions
Dimension BC
9.38 in
Dimension B Fix
2.84 in
Dimension B Exp
2.92 in
Dimension C
6.00 in
Dimension D
8.760 in
Dimension E
6.6300 in
Dimension F
10.880 in
Dimension G
8.125 in
Dimension H
1.0000 in
Dimension J
0.7500 in
Dimension KA
1.63 in
Dimension L Exp
5.04 in
Dimension L Fix
4.96 in
Dimension M
2.97 in
Dimension N
2.13 in
Dimension RA
0.37 in
Dimension SA
4.59 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)
QAC Series Ipart.ipt
QAC20A400S.dxf
QAC20A400S.igs
Bearing Life Calculator
Bearing Life Calculator
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The Timken Company. ©
The Timken Company. 
©
The Timken Company.