QD ® BUSHING SELECTION CHART
QD ® WELD-ON HUBS
QD ® Bushing
Bore Size in Inches
Item Code JA SH SDS SD SK SF E F
J
M N P
Tsubaki offers the most complete line of “QD ® ” Style weld-on hubs for insertion and welding to produce “B” style sprockets, sheaves, and other applications. To provide greater strength for this type of shaft locking mechanism and reduce heat distortion caused by welding, these hubs are dimensionally the same as our sprocket items. Special dimensional hubs are available per your specifications on a made- to-order basis. All Tsubaki hubs are made from steel bar stock (not powdered or sintered metal). The “QD ® ” Style Weld-On hubs listed below include appropriate tapered bores and mounting holes. QD ® Weld-On hubs are manufactured with a step for assistance in locating the attached plate. This is shown as the “T” dimension and depending on the width of the plate, the result is either a B-style or C-style sprocket.
3-13/16"
3M 3P 3R
S S S N
• S S S S S S S S S S S
• • • • • • • • • • • • • • • • • S S S S S S S S S S S
• • • • • • • • • • • • • • • • • • • • • S S S S S S S S S S S S S S S
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • S S S S S S S S S S S S S S S S S
3-7/8"
3-15/16"
4"
4
4-1/16" 4-1/8" 4-3/16" 4-1/4" 4-5/16" 4-3/8" 4-7/16" 4-1/2" 4-9/16" 4-5/8" 4-11/16"
4A 4B 4C 4D 4E 4F 4G 4H
All dimensions in inches unless noted.
L
Dim. D
Dim. P
Dim. L
Dim. T
4I
Use with Bushing #
Hub Type
Wt. Lbs.
Catalog Number
4J 4K 4L
35SHW
SH
3.00
2.875
0.813
0.141
B
.90
4-3/4"
4-13/16"
4M 4P 4R
40SDSW SDS
3.500 3.125 4.250 3.875 3.625 3.438 4.250 4.125 5.000 4.625 3.500 3.125 4.250 3.875 5.000 4.625 6.250 5.875 5.000 4.625 6.250 5.875 7.000 6.625 6.250 5.875 6.250 5.875 7.000 6.625 6.250 5.875 7.000 6.625 8.000 7.500 7.000 6.625 8.000 7.500 10.000 9.500
0.750 1.250 0.750 1.250 1.250 0.750 1.250 1.250 1.625 1.250 1.625 2.500 1.625 1.625 2.500 1.625 2.500 3.188 2.500 3.188 5.188
0.250 0.250 0.313 0.313 0.313 0.438 0.438 0.438 0.438 0.563 0.563 0.563 0.688 0.688 0.688 0.875 0.875 0.875 1.094 1.125 2.250
B B B B B B B B B B C C B C C B C C B C
1.00 2.40 1.00 2.40 3.70 1.00 2.40 3.60 7.80 3.50 7.70
4-7/8"
40SKW
SK
4-15/16"
50SDSW SDS
5"
5
50SKW 50SFW
SK SF
5-1/16" 5-1/8" 5-3/16" 5-1/4" 5-5/16" 5-3/8" 5-7/16" 5-1/2" 5-9/16" 5-5/8" 5-11/16"
5A 5B 5C 5D 5E 5F 5G 5H
60SDSW SDS
60SKW 60SFW
SK SF
T
Type C
60EW
E
80SFW
SF
L
5I
80EW 80FW
E F E E F E F J F J
5J 5K 5L
14.70
100EWB 100EWC 100FW 120EW 120FW 120JW 160FW 160JW 160MW
7.50 7.50
5-3/4"
5-13/16"
5M
5-7/8"
5
14.60
5-15/16"
5R
7.40
6"
6
14.30 23.70 14.00 23.30 59.30
6-1/16" 6-1/8" 6-3/16" 6-1/4" 6-5/16" 6-3/8" 6-7/16" 6-1/2" 6-9/16" 6-5/8" 6-11/16"
6A 6B 6C 6D 6E 6F 6G 6H
T
M
C1
Type B and Type C 1
6I
6J 6K 6L
6-3/4"
6-13/16"
6M 6P 6R
6-7/8"
6-15/16"
7"
7
See page 195 for Shallow keyway dimensions.
S = Shallow keyway in hub
N = No keyway in hub
www. ustsubaki .com
198
199
QD ® is a registered trademark of, and is used under license agreement from Emerson Electric Co.
QD ® is a registered trademark of, and is used under license agreement from Emerson Electric Co.
Made with FlippingBook Digital Proposal Creator