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SKU: 08B1-12
Pilot Bore Simplex Sprockets
08B1-12 1/2″ Simplex P/B Sprocket
£5.76
ex. VAT · £6.91 inc. VAT
JS9 Tight Fit Anti-Roll
H7 Precision Transition Fit
ISO 9001 Quality Assured
Technical Specifications
Chain Size
08B
Pitch
1/2"
Number of Teeth
12
Strand
Simplex
Bore Type
Pilot Bore
Outer Diameter (de)
40.0 mm
Pitch Diameter (dp)
36.8 mm
Hub Diameter (dm)
25 mm
Stock Bore (D1)
8 mm
Weight
0.21kg
Standards & Fit
JS9
JS9 Keyway
Tight fit anti-roll standard
H7
Precision Transition Fit
Precision bore fit
ISO
ISO 9001:2015
Quality Assured
| Parameter | Value | Notes |
|---|---|---|
| SKU | 08B1-12 | Aroflex part number |
| Chain Size | 08B | |
| Pitch | 1/2" | |
| Number of Teeth | 12 | |
| Strand | Simplex | |
| Bore Type | Pilot Bore | |
| Outer Diameter (de) | 40.0 mm | |
| Pitch Diameter (dp) | 36.8 mm | |
| Hub Diameter (dm) | 25 mm | |
| Stock Bore (D1) | 8 mm | |
| Weight | 0.21 kg | |
| Bore Tolerance | H7 | Precision transition fit |
| Material | Steel / Friction disc | Standard construction |
| Certification | ISO 9001:2015 | Quality assured |
08B1-12 1/2″ Simplex Pilot Bore Sprocket
The 08B1-12 is a precision-manufactured 12-tooth Simplex Pilot Bore Sprocket designed for BS 08B roller chain with a 1/2″ pitch. Manufactured to BS/ISO standards and suited to single-strand power transmission drives in a wide range of industrial applications. Supplied with a pilot bore, it is ready for finish-boring and keying to your exact shaft dimensions, offering maximum installation flexibility.
Product Features & Specifications
- Number of Teeth: 12
- Chain Standard: BS 08B (1/2″ pitch) — Simplex (single-strand)
- Outer Diameter (de): 40.0 mm
- Pitch Diameter (dp): 36.8 mm
- Hub Diameter (dm): 25 mm
- Length Through Bore (A): 25 mm
- Stock Bore (D1): 8 mm
- Bore Type: Pilot Bore — supplied with a small pilot bore, ready to be finish-bored and keyed to your exact shaft specification.
- Machining Service: Need a finished bore and keyway? Use our In-House Machining Services for a precision-finished sprocket to your specification.
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