Description
Technical Specifications — ISO 20B-1 Sprocket
| Parameter | Value | Notes |
|---|---|---|
| Pitch | 31.750 mm (1-1/4″×21.34″) | ISO 606 / DIN 8187 |
| Roller Diameter Φ | 19.05 mm | |
| Tooth Width B₁ | 19.56 mm | Simplex |
| Teeth Range | Z=6 – Z=45 | Simplex |
| Material | C45 Carbon Steel | Induction-hardened teeth |
| Tooth Hardness | HRC 50–60 | |
| Standard | ISO 606 / DIN 8187 |
Features & Advantages
| ⚙️ | CNC Precision Hobbing | Manufactured on CNC gear-hobbing machines to DIN Grade 6, delivering consistent pitch accuracy across the full Z=6–Z=45 tooth range. |
| Induction-Hardened Tooth Flanks | Surface hardness HRC 50–60 with thermal deformation ≤0.05 mm — validated by 100% hardness sampling on each production batch. | |
| Multiple Hub & Bore Options | Available in plain bore, finished bore, taper-sleeve (TS/TD/TT), and split taper bushing formats for every shaft installation requirement. | |
| ISO 606 / DIN 8187 Compliant | Full compliance with European and international standards ensures perfect interchangeability with imported machinery operating across Australian industry. |
Compatibility
For use with ISO/DIN 8187 20B-1 roller chain (pitch 31.750 mm, roller Φ 19.05 mm). Compatible with standard taper bushes and finished bore to your shaft specification. Contactez notre équipe for bore and bush selection assistance.
Applications
Customer Reviews
FAQ
- Verify bore or taper bush size matches shaft; clean mating surfaces.
- Align sprockets to within 0.5 mm lateral offset using a precision straight-edge.
- Install ISO 20B-1 chain and set slack-side sag to 2% of centre distance.
- Torque all fasteners to specification; check alignment after initial run.
- Re-lubricate every 200 operating hours with appropriate chain lubricant.
Why Choose Ever-power Australia?
We are a vertically integrated manufacturer with over 25 years of chain drive experience. Our facility spans 35,000 m² and produces over 4 million sprockets per year. We supply OEM partners, distributors, and direct industrial buyers across Australia, with products meeting GB, ISO, ANSI, JIS, DIN and BS standards.
4M+ pcs/year
Compatible avec les équipementiers
AU Stock Available
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Our engineering team is available 24/7 to assist with specifications, custom designs, and volume pricing for Australian businesses.


