| Customization: | Available |
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| Standard Or Nonstandard: | Standard |
| Application: | Motor, Motorcycle, Machinery, Agricultural Machinery, Car |
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1240 series engineer class sprocket is used for a wide verity of chain sizes. These sizes include 1240, ROA1242, 1244, R1248, ROA124, SS124, IS-4110, IS-4106, LXS1242 and 1241 size chains. 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.
Tooth Face at Pitch Line: 1.750" - Roller Diameter: 1.750"
| Sprocket Size | Tooth Count | Pitch Diameter | Style | Hub Diameter | Length Thru Bore | Maximum Bore | Weight (LBS) |
|---|---|---|---|---|---|---|---|
| 1240C6 | 6 | 8.13" | C | 4.00" | 4.00" | 2.31" | 30.0 LBS |
| 1240C7 | 7 | 13.83" | C | 5.25" | 4.75" | 3.25" | 39.0 LBS |
| 1240C8 | 8 | 10.82" | C | 6.50" | 5.00" | 4.06" | 52.0 LBS |
| 1240C9 | 9 | 11.88" | C | 6.50" | 5.00" | 4.06" | 61.0 LBS |
| 1240C10 | 10 | 13.15" | C | 6.50" | 5.00" | 4.06" | 69.0 LBS |
| 1240C11 | 11 | 14.42" | C | 6.50" | 5.00" | 4.06" | 78.0 LBS |
| 1240C12 | 12 | 15.70" | C | 7.00" | 6.00" | 4.56" | 96.0 LBS |
| 1240C13 | 13 | 16.98" | C | 7.00" | 6.00" | 4.56" | 102.0 LBS |
| 1240C14 | 14 | 18.26" | C | 7.00" | 6.00" | 4.56" | 112.0 LBS |
| 1240C15 | 15 | 19.54" | C | 7.00" | 6.00" | 4.56" | 122.0 LBS |
| 1240C16 | 16 | 20.82" | C | 8.00" | 6.25" | 5.31" | 140.0 LBS |
| 1240C17 | 17 | 22.11" | C | 8.00" | 6.25" | 5.31" | 142.0 LBS |
| 1240C18 | 18 | 23.40" | C | 8.00" | 6.25" | 5.31" | 161.0 LBS |
| 1240C19 | 19 | 24.68" | C | 8.00" | 6.25" | 5.31" | 175.0 LBS |
| 1240C21 | 21 | 27.26" | C | 8.00" | 6.25" | 5.31" | 210.0 LBS |
| 1240C22 | 22 | 28.55" | C | 8.00" | 6.25" | 5.31" | 218.0 LBS |
| 1240C28 | 28 | 36.29" | C | 9.00" | 6.25" | 6.06" | 310.0 LBS |
| 1240C29 | 29 | 37.58" | C | 9.00" | 6.75" | 6.06" | 330.0 LBS |
| 1240C30 | 30 | 38.87" | C | 10.00" | 6.75" | 7.13" | 346.0 LBS |
| 1240C32 | 32 | 41.45" | C | 10.00" | 6.75" | 7.13" | 378.0 LBS |
| 1240C34 | 34 | 44.03" | C | 10.00" | 6.75" | 7.13" | 402.0 LBS |
Services we can provide
1. Produce strictly following standard dimension
2. Material: 1045 Steel / Alloy Steel / Stainless Steel 304 & 316
3. Standard: ANSI, DIN, JINS, ISO, KANA, Standard America, or customer's drawing
4. Pilot bore, finished bore, taper bore, and special bore.
5. Bright surface / high precision / Blacking /Electrophoretic-Coated
6. Advanced heat treatment and surface treatment craft
7. Best quality and competitive price.
8. Welcome OEM / ODM
9. Processing Equipment: Hobbing machine, Slotting machine, CNC lathes, and other equipment.
10. Sprocket Models: Contains special sprocket according to customer's drawings, standard sprocket (American standard and metric).
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