55-Series Sprockets CA550 C55 SS55 Sprocket
55-Series Sprockets CA550 C55 SS55 Sprocket
55 series engineer class sprocket are used for a wide verity of chain sizes. These sizes include CA550, CA550HD, CA555, CA557, CA565, 55, C55, SS55, C55A Rooftop, C55B Rooftop, C55D Rooftop, and C55L. These sprockets are typically supplied as cast material but we can also supply them as steel for longer operation. The below chart shows the standard tooth counts as well as dimensions for each size.
55-Series Sprockets
| Sprocket Size | Tooth Count | Style | Pitch Diameter | Hub Diameter | Length Thru Bore | Maximum Bore | Weight |
|---|---|---|---|---|---|---|---|
| 55C5 | 5 | C | 2.77" | 2.00" | 2.00" | 0.94" | 2.0 LBS |
| 55C6 | 6 | C | 3.26" | 2.00" | 2.00" | 0.94" | 2.0 LBS |
| 55B7 | 7 | B | 3.76" | 2.50" | 2.00" | 1.63" | 3.0 LBS |
| 55B8 | 8 | B | 4.26" | 2.50" | 2.00" | 1.63" | 4.0 LBS |
| 55C9 | 9 | C | 4.76" | 3.00" | 2.00" | 1.94" | 5.0 LBS |
| 55C10 | 10 | C | 5.26" | 3.50" | 2.00" | 2.19" | 5.0 LBS |
| 55C11 | 11 | C | 5.77" | 4.50" | 3.00" | 2.88" | 6.0 LBS |
| 55C12 | 12 | C | 6.30" | 4.50" | 3.00" | 2.88" | 10.0 LBS |
| 55C13 | 13 | C | 6.80" | 4.50" | 3.00" | 2.88" | 10.0 LBS |
| 55C14 | 14 | C | 7.31" | 4.50" | 3.00" | 2.88" | 12.0 LBS |
| 55C15 | 15 | C | 7.83" | 4.50" | 3.00" | 2.88" | 13.0 LBS |
| 55C16 | 16 | C | 8.34" | 4.50" | 3.00" | 2.88" | 13.0 LBS |
| 55C17 | 17 | C | 8.85" | 4.50" | 3.00" | 2.88" | 17.0 LBS |
| 55C18 | 18 | C | 9.39" | 4.50" | 3.00" | 2.88" | 20.0 LBS |
| 55C19 | 19 | C | 9.92" | 4.50" | 3.00" | 2.88" | 20.0 LBS |
| 55C20 | 20 | C | 10.43" | 6.00" | 3.50" | 2.88" | 20.0 LBS |
| 55C21 | 21 | C | 10.94" | 6.00" | 3.50" | 4.00" | 23.0 LBS |
| 55C22 | 22 | C | 11.43" | 6.00" | 3.50" | 4.00" | 24.0 LBS |
| 55C23 | 23 | C | 11.97" | 6.00" | 3.50" | 4.00" | 29.0 LBS |
| 55C24 | 24 | C | 12.47" | 6.00" | 3.50" | 4.00" | 32.0 LBS |
| 55C25 | 25 | C | 13.00" | 8.00" | 4.00" | 6.00" | 31.0 LBS |
| 55C27 | 27 | C | 14.07" | 8.00" | 4.00" | 6.00" | 38.0 LBS |
| 55C28 | 28 | C | 14.54" | 8.00" | 4.00" | 6.00" | 42.0 LBS |
| 55C29 | 29 | C | 15.08" | 8.00" | 4.00" | 6.00" | 26.0 LBS |
| 55C30 | 30 | C | 15.59" | 8.00" | 4.00" | 6.00" | 54.0 LBS |
| 55C31 | 31 | C | 16.11" | 8.00" | 4.00" | 6.00" | 58.0 LBS |
| 55C32 | 32 | C | 16.63" | 8.00" | 4.00" | 6.00" | 63.0 LBS |
| 55C34 | 34 | C | 17.67" | 8.00" | 4.00" | 6.00" | 31.0 LBS |
| 55C35 | 35 | C | 18.20" | 8.00" | 4.00" | 6.00" | 69.0 LBS |
| 55C36 | 36 | C | 18.70" | 8.00" | 4.00" | 6.00" | 77.0 LBS |
| 55C38 | 38 | C | 19.75" | 8.00" | 4.00" | 6.00" | 35.0 LBS |
| 55C40 | 40 | C | 20.79" | 10.00" | 4.00" | 8.00" | 37.0 LBS |
| 55C41 | 41 | C | 21.31" | 10.00" | 4.00" | 8.00" | 36.0 LBS |
| 55C48 | 48 | C | 24.94" | 10.00" | 4.00" | 8.00" | 45.0 LBS |
| 55C50 | 50 | C | 25.98" | 10.00" | 4.00" | 8.00" | 47.0 LBS |
| 55C54 | 54 | C | 28.00" | 10.00" | 4.00" | 8.00" | 50.0 LBS |
Weld On Hub 55-Series Sprockets
| Sprocket Size | Tooth Count | Bore | Root Diameter | Outside Diameter | Hub Type Needed | Width (B) | Weight |
|---|---|---|---|---|---|---|---|
| 55W6 | 6 | 1-5/8" | 2.62" | 3-3/4" | W | 9/16" | 0.88 LBS |
| 55X7 | 7 | 2" | 3.11" | 4-1/4" | X | 9/16" | 1.00 LBS |
| 55X8 | 8 | 2" | 3.61" | 4-3/4" | X | 9/16" | 1.44 LBS |
| 55X9 | 9 | 2" | 4.12" | 5-1/4" | X | 9/16" | 2.06 LBS |
| 55X10 | 10 | 2" | 4.63" | 5-3/4" | X | 9/16" | 2.50 LBS |
| 55X11 | 11 | 2" | 5.14" | 6-1/4" | X | 9/16" | 3.32 LBS |
| 55X12 | 12 | 2" | 5.65" | 6-3/4" | X | 9/16" | 4.00 LBS |
| 55X13 | 13 | 2" | 6.16" | 7-1/4" | X | 9/16" | 5.00 LBS |
| 55X14 | 14 | 2" | 6.67" | 7-3/4" | X | 9/16" | 5.92 LBS |
| 55X15 | 15 | 2" | 7.19" | 8-1/4" | X | 9/16" | 6.77 LBS |
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