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Roller and Bush Chains According to DIN 8188 ASA/ANSI (A-Series)

A-series roller and bush chains are among the most common types of drive chains. They are standardized according to ISO 606 (DIN 8188, ANSI B29.1), meaning they belong to the American A-series.

The chains consist of outer links with pins and inner links with bushes, with freely rotating rollers mounted on the bushes in roller chains. The chains are made of steel. The exact grade of steel, production method and heat treatment of the steel of the individual parts vary by chain type, size and manufacturer.

The standard design of A-series chains includes simplex, duplex or triplex designs.

04C / ASA 25 (1/4″ × 1/8″)

DIN 8188 bush chains
Pitch × inner width (mm): 6.35 × 3.18

06C / ASA 35 (3/8″ × 3/16″)

DIN 8188 bush chains
Pitch × inner width (mm): 9.53 × 4.77
Design: simplex, duplex, triplex

08A / ASA 40 (1/2″ × 5/16″)

DIN 8188 roller chains
Pitch × inner width (mm): 12.70 × 7.95
Design: simplex, duplex, triplex

10A / ASA 50 (5/8″ × 3/8″)

DIN 8188 roller chains
Pitch × inner width (mm): 15.88 × 9.53
Design: simplex, duplex, triplex

12A / ASA 60 (3/4″ × 1/2″)

DIN 8188 roller chains
Pitch × inner width (mm): 19.05 × 12.70
Design: simplex, duplex, triplex

16A / ASA 80 (1″ × 5/8″)

DIN 8188 roller chains
Pitch × inner width (mm): 25.40 × 15.88
Design: simplex, duplex, triplex

20A / ASA 100 (1 1/4″ × 3/4″)

DIN 8188 roller chains
Pitch × inner width (mm): 31.75 × 19.05
Design: simplex, duplex, triplex

24A / ASA 120 (1 1/2″ × 1″)

DIN 8188 roller chains
Pitch × inner width (mm): 38.10 × 25.40
Design: simplex, duplex, triplex

28A / ASA 140 (1 3/4″ × 1″)

DIN 8188 roller chains
Pitch × inner width (mm): 44.45 × 25.40
Design: simplex, duplex, triplex

32A / ASA 160 (2″ × 1 1/4″)

DIN 8188 roller chains
Pitch × inner width (mm): 50.80 × 31.75
Design: simplex, duplex, triplex

40A / ASA 200 (2 1/2″ × 1 1/2″)

DIN 8188 roller chains
Pitch × inner width (mm): 63.50 × 38.10
Design: simplex, duplex, triplex

Chains Construction

Standard Duplex Roller Chain Construction

  1. Inner link
  2. Outer link
  3. Pin
  4. Bushing
  5. Roller

Chains Fields of Use

A-series roller and bush chains according to DIN 8188 are designed for general applications, ranging from light to heavy industry.

They are primarily used as drive chains but can also be fitted with attachments for material handling and lifting.

Chains Material

Steel.

Chains Code Description

Example:
08A-1 KÖBO (ASA 40-1, 1/2″ × 5/16″, DIN 8188) - 5 m Roll

Code Part Description
08A

Chain type (ISO 606 / DIN 8188, A-series)

1

Simplex roller chain

KÖBO

Manufacturer

ASA 40-1

Chain designation according to ANSI B29.1 standard (USA)

1/2″ × 5/16″

Pitch × internal width

DIN 8188

American chain standard (A-series)

5 m Roll

Standard package length

Documents for Download

Dimensions and Parameters of DIN 8188 ASA/ANSI Roller Chains

TYMA CZ Data Sheets

Czech and English (PDF 374.73 kB)

Chains

TYMA CZ Catalogue

Czech (PDF 2.01 MB)

Sprockets and Plate Wheels

TYMA CZ Catalogue

Czech and English (PDF 3.77 MB)

KW Roller Chains (DIN 8188)

KettenWulf Data Sheets

English (PDF 316.94 kB)

Drive Chains

Donghua Catalogue

English (PDF 15.18 MB)


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