No. 40
QD ® SPROCKET DIMENSIONS
U.S. TSUBAKI STOCK SPROCKETS
HOW TO ORDER
U.S. Tsubaki Stock Sprockets
All dimensions in inches unless noted.
Chain Selection Data Size Chain Data
No. 40 QD ® Sprockets Dia.
Dimensional Data
40
No. 40 1/2" Pitch: QD ®
MAX Bore* 1.250 1.250 1.250 1.250 1.250 1.688 1.688 1.688 1.688 1.688 1.688 1.688 1.688 1.688 1.688 1.688 1.688 2.000 2.000 2.000 2.000 2.000 2.000 2.000 2.625 2.625 2.625 2.625 2.625 2.625
No. Teeth
Outside Diameter
Hub Diameter 2.063 ¨ 2.063 ¨ 2.188 ¨ 2.250 ¨ 2.250 ¨ 2.750 ¨ 2.750 ¨
Hub Style
Weight Lbs.
Pitch
1/2˝ 1/2" 5/16" 5/16˝ .312˝ 0.312" 0.284" .284˝
Bushing #
LTB
X
Y
L
F
Inside Width
15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 35 36 40 42 45 48 54 60 70 72 80 84 96
2.650 2.810 2.980 3.140 3.300 3.460 3.620 3.780 3.940 4.100 4.260 4.420 4.580 4.740 5.060 5.360 5.860 6.020 6.660 6.970 7.450 7.930 8.890 9.840
JA JA JA JA JA SH SH SH SH SH SH SH SH SH SH SH SH
0.625 1.125 1.125 0.719 2.063 0.625 1.125 1.125 0.719 2.063 0.625 1.125 1.125 0.719 2.063 0.625 1.125 1.125 0.719 2.063 0.625 1.125 1.125 0.719 2.063 0.813 1.438 1.438 0.969 2.688 0.813 1.438 1.438 0.969 2.688 0.813 1.438 1.438 0.969 2.688 0.813 1.438 1.438 0.969 2.688 0.813 1.438 1.438 0.969 2.688 0.813 1.438 1.438 0.969 2.688 0.813 1.438 1.438 0.969 2.688 0.813 1.438 1.438 0.969 2.688 0.813 1.438 1.438 0.969 2.688 0.813 1.438 1.438 0.969 2.688 0.813 1.438 1.438 0.969 2.688 0.813 1.438 1.438 0.969 3.000 0.750 1.500 1.500 1.032 3.188 0.750 1.500 1.500 1.032 3.188 0.750 1.500 1.500 1.032 3.188 0.750 1.500 1.500 1.032 3.188 0.750 1.500 1.500 1.032 3.188 0.750 1.500 1.500 1.032 3.188 0.750 1.500 1.500 1.032 3.188 1.250 2.125 2.125 1.594 3.875 1.250 2.125 2.125 1.594 3.875 1.250 2.125 2.125 1.594 3.875 1.250 2.125 2.125 1.594 3.875 1.250 2.125 2.125 1.594 3.875 1.250 2.125 2.125 1.594 3.875
S S S S S S S S S S S S S S S S S E E E E E E E E E E E E E
0.34 0.40 0.48 0.54 0.60 0.76 0.84 0.92 1.14 1.22 1.30 1.44 1.46 1.54 1.72 1.90 2.22 2.20 2.72 2.92 3.32 3.70 4.78 5.86 8.68 8.84
Roller Diameter
Nominal Tooth Width:
A 40 JA 19 How to Order Code: Example Model # for 40 Pitch QD ® Carbon Steel Sprockets
3.000 3.000 3.000 3.000 3.000 3.000 3.000 3.000 3.000 3.000 3.500 3.500 3.500 3.500 3.500 3.500 3.500 4.250 4.250 4.250 4.250 4.250 4.250
Altered !!
Chain Pitch in Inches
Number of Teeth
QD ® Hub Type
15
17
19
JA: QD ® Hub 15 - 19 tooth sprocket
16
18
20
23
26
30
SH: QD ® Hub 20 - 35 tooth sprocket
21
24
27
32
A: Alteration Required
40: 1/2" Pitch
22
25
28
35
SDS SDS SDS SDS SDS SDS SDS
36
42
48
60
SDS: QD ® Hub 36 - 60 tooth sprocket
40
45
54
70
80
96
SK: QD ® Hub 70 - 112 tooth sprocket
72
84
112
!! Alteration field only to be denoted if a deviation from standard is required. Please reference Alterations in engineering section, page 210.
11.430 11.750 13.030 13.660 15.570 18.120
SK SK SK SK SK SK
11.20 11.56 15.76 20.28
QD ® bushing is not included with the sprocket. They are to be ordered separately. Please refer to the table below for general guidelines. Specific details are found in the Bushing Section of this catalog beginning on page 188.
Y
Y
TOOTH (NOMINAL) .284˝ NOMINAL
TOOTH (NOMINAL) .284˝ NOMINAL
LTB
LTB
112
* Please reference QD ® bushing dimension table on page 196 for specific information on MAX Bore and keyway data. ¨ Has recessed groove in hub for chain clearance
QD ® Bushings
Bushing #
Bore Range
JA SH
0.500 - 1.250" 0.500 - 1.688" 0.500 - 2.000" 0.500 - 2.625"
L
L
SDS
STYLEE TYPEB X
STYLES TYPEB X
SK
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QD ® is a registered trademark of, and is used under license agreement from Emerson Electric Co.
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