ISO 08B-1 Sprocket

ISO 08B-1 Sprocket

这 ISO 08B-1 sprocket (1/2"×5/16", 12.7 mm pitch) is the most widely specified European-standard roller chain sprocket across Australian manufacturing, conveyors, and agricultural equipment. Manufactured in C45 steel with precision-hobbed, induction-hardened teeth, it is available as simplex, duplex, triplex, finished bore, and taper-sleeve versions — eliminating down-time caused by chain skipping, premature tooth wear, and installation delays.

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Description

ISO 08B-1 Sprocket

Technical Specifications — ISO 08B-1 Sprocket (Simplex / Duplex / Triplex)

范围 08B-1 Simplex 08B-2 Duplex 08B-3 Triplex Unit
沥青 12.700 12.700 12.700 mm
Roller Φ 8.51 8.51 8.51 mm
Tooth Width b₁/b₂ 7.2 / — 7.2 / 7.75 7.2 / 7.75 mm
Teeth Range Z 8 – 125 8 – 125 8 – 76 —
Outer Dia. Z=18 77.8 / 73.14 77.8 / 73.14 77.8 / 73.14 mm
Hub Width (W, large Z) 28 38 43 mm
材料 C45 C45 C45 steel
牙齿硬度 HRC 50–60 HRC 50–60 HRC 50–60 —
标准 ISO 606 / DIN 8187 ISO 606 ISO 606 —

Key Product Features

Most Popular ISO Sprocket Size
12.7 mm pitch (1/2 inch) is the global standard for medium-duty chain drives, with the largest selection of chain types and complementary components readily available.
Induction-Hardened Teeth
HRC 50–60 surface hardness with ≤0.05 mm thermal deformation ensures 3× the wear life of untreated sprockets at comparable cost.
Complete Format Range
Available as finished bore, pilot bore, taper-sleeve (TS, TD, TT bush types), split taper bushing, and welded hub — every installation scenario covered.
Simplex, Duplex & Triplex
Single, double, and triple-strand options allow graduated torque capacity from light-duty (08B-1) to heavy industrial (08B-3) without changing sprocket diameter or chain pitch.

Compatibility & Chain Selection

The ISO 08B-1 sprocket is designed for DIN 8187 / ISO 606 08B-1 roller chain: pitch 12.7 mm, inner width 7.75 mm, roller Φ 8.51 mm. 08B-1 Finished Bore versions are pre-machined and ready to install on shafts from 16 mm to 75 mm (Z-dependent). Taper bush variants accept 1008/1210/1610/2012/2517 taper bushings. Cross-reference: visit our full ISO 08B sprocket catalogue.

应用程序

物料搬运

物料搬运
Main drive on belt and roller conveyors, overhead systems
农业机械

农业机械
Grain augers, combine harvesters, irrigation pump drives
包装机械

包装机械
Case-packer, stretch-wrapper and palletiser drives
Mining Equipment

⛏️ Mining Equipment
Auxiliary drives on crushing and screening equipment

用户评价

Tom B.  ★★★★★
Australia · February 2025
“Our grain-auger sprockets previously failed every harvest season. Switched to Ever-power 08B-1 — three seasons and counting with no issues. Outstanding.”
ISO 08B-1 Z=22 Finished Bore
Elisa C.  ★★★★★
Spain · March 2025
“Duplex 08B-2 sprockets for our packaging line — installed and running at 450 rpm with zero vibration. Quality is on par with top European brands.”
ISO 08B-2 Z=19 Duplex
Sung-Jin K.  ★★★★☆
South Korea · January 2025
“Good product. Tooth pitch measured precisely. Slight cosmetic inconsistency in hub finish but function is perfect.”
ISO 08B-1 Z=25
Mark T.  ★★★★★
UK · April 2025
“We regularly import these for our conveyor refurbishment business. Consistent quality batch after batch, which is what we need for repeat supply.”
ISO 08B-1 Taper Sleeve Z=21

常问问题

►  Is the ISO 08B-1 sprocket the same as the ANSI #40 sprocket?
They have the same 12.7 mm pitch, but the chain dimensions differ: ISO 08B has inner width 7.75 mm while ANSI #40 has 7.92 mm inner width. The sprockets are NOT interchangeable — always confirm the chain standard before ordering.
►  What is the maximum bore for an 08B-1 Z=25 sprocket?
Typically 45–55 mm depending on hub style. Finished bore versions are custom-machined to your specification. Contact our team for maximum available bore for each tooth count.
►  Do you offer duplex and triplex versions in all tooth counts?
Duplex (08B-2) is available Z=8–125. Triplex (08B-3) covers Z=8–76. Non-standard tooth counts outside the stock range require 7–14 days manufacturing.
►  Can stainless steel 08B-1 sprockets be supplied?
Yes. SS304 stainless 08B sprockets are available for food processing and marine applications. Lead time is typically 2–3 weeks.
►  What chain lubricant do you recommend for 08B-1 drives?
ISO VG 68–100 mineral oil for general use; ISO VG 46 for high-speed drives; NSF H1 food-grade oil for food processing applications. Re-lubricate every 200 hours or as indicated by operating conditions.
  1. Degrease shaft and bore; verify bore matches shaft tolerance (H7/k6 recommended).
  2. Install sprocket; for taper-sleeve types, torque bushing bolts to the specified value on the bushing label.
  3. Align driving and driven sprockets using a laser alignment tool or precision straight-edge — within 0.3 mm lateral offset.
  4. Thread the 08B chain and use a chain link to close — do not over-tension.
  5. Set slack-side sag to 2–3% of centre distance and re-check after the first 4 hours of load.
✓ ISO 9001:2015✓ ANSI B29.1✓ ISO/DIN 8187✓ JIS B 1801✓ BS/DIN 标准✓ 英国标准
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