Technical Gear Information
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ASA
Roller Chain
Chains & Sprockets |
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DESIGN FORMULAS FOR ASA
ROLLER CHAIN SPROCKETS
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| Symbol |
Description |
Formula |
Result |
| N |
#
of teeth |
Given |
20 |
| P |
Chain
pitch |
Given |
0.750 |
| Dr |
Roller
diameter |
Given |
0.4690 |
| CI |
Pitch
line clearance minimum |
07
(P-Dr)+.002 |
0.0217 |
| CIM |
Pitch
mine clearance maximum |
CI+.003
(Dr)+.005 |
0.0281 |
| Rm |
Seating
curve radius minimum |
5025(Dr)+.0025 |
0.2372 |
| RM. |
Seating
curve radius maximum |
Rm+.0015(Dr)+.0025 |
0.2404 |
| D |
Pitch
diameter |
P/(sin(180/N)) |
4.7943 |
| MM |
Minor
diameter maximum |
D-Dr |
4.3253 |
| Mm |
Minor
diameter minimum |
MM-(.001*P*SQRT(N)+.003) |
4.3190 |
| J |
J
dimension |
.3*P |
0.2250 |
| DO |
Outside
diameter |
P(.6+cot(180/N)) |
5.1852 |
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Reprinted
from Ash Gear & Supply
Omni Gear and
Machine Corporation - 90
Bissel Street - Joliet, Illinois 60432
Toll Free: (800) 876-7216 - Fax: (815) 723-9207
Copyright ©
2004
Omni Gear and Machine Corporation
All rights reserved.
