Sprocket Catalog - U.S. Tsubaki, Inc.
Sprocket Catalog - U.S. Tsubaki, Inc.
Sprocket Catalog - U.S. Tsubaki, Inc.
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Idler <strong>Sprocket</strong>s—Chain Tensioners<br />
Bronze Bushed <strong>Sprocket</strong> Idlers<br />
for Use with All Steel Tighteners<br />
Dimensions are in inches unless otherwise indicated.<br />
No. Outside <strong>Catalog</strong> List Suggested ANSI Hub Bushed Wt.<br />
Teeth Diameter Number Price Tightener Chain No. Dia. LTB Bore Dia. Lbs.<br />
15<br />
13<br />
13<br />
13<br />
21<br />
19<br />
17<br />
15<br />
17<br />
15<br />
1.990<br />
2.329<br />
2.329<br />
2.911<br />
2.713<br />
3.296<br />
3.719<br />
3.979<br />
4.462<br />
5.305<br />
35B15T<br />
41B13T<br />
40B13T<br />
50B13T<br />
35B21T<br />
40B19T<br />
50B17T<br />
60B15T<br />
60B17T<br />
80B15T<br />
$41.00<br />
56.80<br />
58.00<br />
62.80<br />
54.80<br />
75.60<br />
85.00<br />
107.20<br />
144.00<br />
177.20<br />
0<br />
0<br />
0<br />
0<br />
1<br />
1<br />
1<br />
1<br />
2<br />
2<br />
35<br />
41<br />
40<br />
50<br />
35<br />
40<br />
50<br />
60<br />
60<br />
80<br />
NOTE: Idlers other than stock furnished on a made-to-order basis<br />
1³⁄₈<br />
1⁹⁄₁₆<br />
1⁹⁄₁₆<br />
2<br />
2¹⁄₈<br />
2⁷⁄₁₆<br />
2⁵⁄₈<br />
2¹¹⁄₁₆<br />
2⁷⁄₈<br />
3¹⁄₂<br />
¹⁵⁄₁₆<br />
¹⁵⁄₁₆<br />
¹⁵⁄₁₆<br />
¹⁵⁄₁₆<br />
1¹⁄₁₆<br />
1¹⁄₁₆<br />
1¹⁄₁₆<br />
1¹⁄₁₆<br />
1⁹⁄₁₆<br />
1⁹⁄₁₆<br />
¹⁄₂<br />
¹⁄₂<br />
¹⁄₂<br />
¹⁄₂<br />
⁷⁄₈<br />
⁷⁄₈<br />
⁷⁄₈<br />
⁷⁄₈<br />
1¹⁄₈<br />
1¹⁄₈<br />
.32<br />
.52<br />
.52<br />
.97<br />
.82<br />
1.50<br />
1.80<br />
2.50<br />
3.30<br />
5.60<br />
Bronze Bushed Idler <strong>Sprocket</strong>s<br />
with Steel Journals<br />
Dimensions are in inches<br />
unless otherwise indicated.<br />
No. Outside <strong>Catalog</strong> List Chain Stock E* Wt.<br />
Teeth Diameter Number Price Size Bore Dim. Lbs.<br />
15<br />
3.32 51E15 39.00 50 ¹⁄₂”<br />
.72” .70<br />
* Dimension E is minimum space for chain clearance<br />
You need Adjustable Idler <strong>Sprocket</strong>s to:<br />
• Obtain proper chain tension when neither driving nor driven<br />
shaft is adjustable, and to take up slack chain developed<br />
through normal chain wear<br />
• Guide chain around an obstruction<br />
• Prevent whipping action in the slack span of chain transmitting<br />
an uneven load<br />
• Bring about greater chain wrap around a small sprocket,<br />
particularly if it is the lower sprocket in a vertical drive<br />
• Provide for reversed direction of rotation of a sprocket in<br />
contact with the outside of the chain<br />
Idler sprockets should not rotate at greater speeds than are<br />
allowable for drive sprockets of the same size. They should be<br />
mounted in contact with the slack span of chain. Mount them on<br />
the outside of the chain when the arc of chain wrap on the<br />
smaller sprocket would otherwise be less than 120°.<br />
It is advisable that idler sprockets have at least three teeth in<br />
mesh with the chain. Inside mounted idlers usually account for<br />
quieter operation, especially if centers are short and speed is<br />
moderately high.<br />
• Machined steel sprockets<br />
• Hardened teeth<br />
• Hardened & ground steel journals<br />
• Oil-impregnated sintered bronze bushings<br />
NOTE: Idler rpm should not<br />
exceed 2500 and radial loading<br />
should be less than 50 pounds.<br />
Chain Tensioners<br />
Dimensions are in inches unless otherwise indicated.<br />
List Wt. Suggested<br />
Size Price A B C D E F G 2G H J K L M P Lbs. Chain<br />
#0-B<br />
#1-B<br />
#2-B<br />
#3-B<br />
$144.00<br />
216.00<br />
320.00<br />
536.00<br />
5⁷⁄₈<br />
9<br />
13<br />
14<br />
1¹⁄₂<br />
2<br />
3<br />
4<br />
5¹⁄₄<br />
8¹⁄₈<br />
11⁷⁄₈<br />
12⁵⁄₈<br />
.500<br />
.875<br />
1.125<br />
1.750<br />
1<br />
1³⁄₄<br />
2⁷⁄₈<br />
3¹⁄₈<br />
2¹⁄₂<br />
4¹⁄₂<br />
6<br />
6<br />
⁹⁄₃₂<br />
¹¹⁄₃₂<br />
⁹⁄₁₆<br />
⁹⁄₁₆<br />
³⁄₈<br />
¹⁄₂<br />
³⁄₄<br />
³⁄₄<br />
2¹³⁄₁₆<br />
4<br />
5¹¹⁄₁₆<br />
6¹⁄₄<br />
1⁵⁄₁₆<br />
1⁵⁄₈<br />
2⁵⁄₃₂<br />
2³⁄₁₆<br />
1³⁄₈<br />
1³⁄₄<br />
2⁷⁄₈<br />
3¹⁄₄<br />
1¹⁄₄<br />
1¹⁄₂<br />
2<br />
2<br />
³⁄₈<br />
¹⁄₂<br />
⁵⁄₈<br />
³⁄₄<br />
³⁄₄<br />
1<br />
1¹⁄₂<br />
2<br />
1.00<br />
2.50<br />
6.00<br />
12.00<br />
#35,40,41*<br />
#40,50,60*<br />
#80,100,120*<br />
#140,160,200*<br />
* Single-strand chain. For multiple-strand chain, use larger tensioner.<br />
73
Change language