ISO 20B-1 Sprocket

ISO 20B-1 Sprocket

The ISO 20B-1 sprocket (1-1/4″×21.34″, 31.750 mm pitch, DIN 8187) is engineered for medium-to-heavy industrial chain drives requiring high precision and long wear life. With C45 carbon steel construction, induction-hardened teeth (HRC 50–60), and tooth counts from Z=6 to Z=45, it solves premature wear and chain-skipping failures on conveyors, agricultural machinery, and processing equipment throughout Australia.

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Description

ISO 20B-1 Sprocket

Technical Specifications — ISO 20B-1 Sprocket

パラメータ Value 注記
ピッチ 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
材料 C45 Carbon Steel Induction-hardened teeth
歯の硬度 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. Contact our team for bore and bush selection assistance.

Applications

Material Handling

Material Handling
Conveyor and elevator drives in warehousing and logistics
Agricultural Equipment

Agricultural Equipment
Harvester, planter, and irrigation drive systems
Mining & Resources

⛏️ Mining & Resources
Heavy-duty drives on crushing, screening, and conveying equipment
Packaging & Processing

Packaging & Processing
High-cycle drives on food, beverage and industrial packing lines

Customer Reviews

Tom W.  ★★★★★ Australia
“Excellent ISO 20B-1 sprockets — precise, well-finished, and arrived ahead of schedule. Running flawlessly at 350 rpm on our conveyor drive.”
ISO 20B-1 Z=27 · March 2025
Klaus M.  ★★★★★ Germany
“Excellent ISO 20B-1 sprockets — precise, well-finished, and arrived ahead of schedule. Running flawlessly at 350 rpm on our conveyor drive.”
ISO 20B-1 Z=21 · March 2025
Paul S.  ★★★★★ UK
“Excellent ISO 20B-1 sprockets — precise, well-finished, and arrived ahead of schedule. Running flawlessly at 350 rpm on our conveyor drive.”
ISO 20B-1 Z=22 · March 2025
Yuki H.  ★★★★★ Japan
“Excellent ISO 20B-1 sprockets — precise, well-finished, and arrived ahead of schedule. Running flawlessly at 350 rpm on our conveyor drive.”
ISO 20B-1 Z=18 · March 2025

FAQ

►  What chain does the ISO 20B-1 sprocket require?
ISO 20B-1 roller chain to DIN 8187 / ISO 606, with pitch 31.750 mm and roller diameter 19.05 mm.
►  Are finished bore and taper-sleeve versions available?
Yes. We supply finished bore (machined to your shaft dimensions) and taper-sleeve versions accepting standard bush sizes. Specify requirements at order.
►  Do you supply duplex and triplex versions?
Yes. 20B-2 (duplex) and 20B-3 (triplex) are available for higher torque applications. Contact us for availability by tooth count.
►  What is the tooth hardness?
Tooth flanks are induction-hardened to HRC 50–60. Core hardness is 28–34 HRC. We can provide hardness test certificates on request.
►  What is the minimum order quantity?
10 pieces for standard sizes from stock. Custom tooth counts: MOQ 50 pieces, lead time 7–14 days.
  1. Verify bore or taper bush size matches shaft; clean mating surfaces.
  2. Align sprockets to within 0.5 mm lateral offset using a precision straight-edge.
  3. Install ISO 20B-1 chain and set slack-side sag to 2% of centre distance.
  4. Torque all fasteners to specification; check alignment after initial run.
  5. Re-lubricate every 200 operating hours with appropriate chain lubricant.
✓ ISO 9001:2015✓ ANSI B29.1✓ ISO/DIN 8187✓ JIS B 1801✓ BS/DIN Standards✓ 英国規格
エバーパワーファクトリー

エバーパワー・オーストラリアを選ぶ理由とは？

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.

ISO 9001認証取得済み
年間400万個以上
OEM対応可能
オーストラリア国内在庫あり

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