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Product Specifications:
| Item | Ball Bearing Idler Sprocket |
| Bore Dia. | 1/2" |
| Chain Size | #40 |
| Hub Dia. | 2.15" |
| Length Through Bore | 0.72" |
| Material | Plastic |
| No. Of Teeth | 17 |
| Pitch | 1/2" |
| Pitch Dia. | 2.7211" |
| Product Datasheet | martin-sprocket-100a10.pdf |
Shipping Info:
| Ship weight (kg) | 0.11 |
| Ship height (cm) | 1.83 |
| Ship length (cm) | 7.57 |
| Ship width (cm) | 7.57 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | No. Of Teeth | Length Through Bore | Bore Dia. | Pitch Dia. | Pitch | Hub Dia. | Chain Size | Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
50BB18NM 5/8 | 18 | 0.72" | 5/8" | 3.5992" | 5/8" | 2 3/4" | #50 | Plastic | €252.77 | |
![]() |
60BB15NM 1/2 | 15 | 0.72" | 1/2" | 3.6073" | 3/4" | 2 1/2" | #60 | Plastic | €256.53 | |
![]() |
60BB16NM 5/8 | 16 | 0.72" | 5/8" | 3.8444" | 3/4" | 2 3/4" | #60 | Plastic | €264.01 | |
![]() |
80BB12NM 3/4 | 12 | 0.96" | 3/4" | 3.8637" | 1" | 2.66" | #80 | Plastic | €266.93 | |
![]() |
40BB18NM 5/8 | 18 | 0.72" | 5/8" | 2.879" | 1/2" | 2 1/4" | 40 | Plastic | €233.87 | |
![]() |
50BB17NM 1/2 | 17 | 0.72" | 1/2" | 3.4014" | 5/8" | 2 5/8" | #50 | Plastic | €250.27 |
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MARTIN SPROCKET 40BB17NM 1/2 Ball Bearing Idler Sprocket, 17 Teeth, 2.721 Inch Pitch Dia., Plastic
€233.87 /unit






