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20A-3 KÖBO (ASA 100-3, 1 1/4 × 3/4, DIN 8188) - 5m Roll

Roller Chain

Price for you (per 1 m):

Price without VAT: 120.20

Price including VAT: 145.44 with VAT

Catalogue price excluding VAT:

We sell in 5 m package. For easy comparison with alternative products, we present the price per 1 m.

At supplier, we usually ship within 2 weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.

Chain Parameters

Profile: 20A-3 Profile
Multiple belts: profile – no. of ribs. Caution! The number of ribs refers to the number of belt protrusions = the number of teeth on the pulley!
Délka L2 (mm): bal./box Length L
Li - inside lenght, Ld - pitch length, La - outside length, Le - effective length. Timing belts z = no. of teeth.
Brand: KÖBO
Weight (kg): 11.010
Length Ld (mm): 5000,00
Width (mm): 3,00
Material: Steel Material
In the TYMA Product Catalogues you can find this material also described with the abbreviation ST.

Chain Description

20A-3 KÖBO (ASA 100-3, 1 1/4 × 3/4, DIN 8188) - 5m Roll are the most common type of drive chains. They are standardized according to DIN 8188 - American series ASA, ANSI.

Standard chain designs are simplex, duplex or triplex. The chain consists of outer links with pins and inner links with bushes on which rotating rollers are fitted.

Chain Construction

Standard Duplex Roller Chain Structure

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

Chain Fields of Use

Roller chains 20A according to DIN 8188 are designed for general use in light and heavy industry.

They are used in drives, but they can be fitted with attachments to transport material.

Chain Material


Documents for Download

Dimensions and Parameters of DIN 8188 ASA/ANSI Roller Chains - Preview

Dimensions and Parameters of DIN 8188 ASA/ANSI Roller Chains

TYMA CZ Data Sheets

Czech and English (PDF 374.73 kB)

Chains - Preview


TYMA CZ Catalogue

Czech (PDF 2.01 MB)

Sprockets and Plate Wheels - Preview

Sprockets and Plate Wheels

TYMA CZ Catalogue

Czech and English (PDF 3.77 MB)

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Manufacturer Profile


KÖBO manufactures high-performance simplex, duplex and triplex roller chains, conveyor chains, sprockets, plate wheels and also special chains and accessories. Using their large production facilities they can manufacture sprockets and sprocket plates in nearly any exacting variation up to a diameter of 1700 mm.

KÖBO has been producing sprockets and chain wheels since 1894. In 1899, Emil Köhler and Hermann Bovenkamp developed a new standardization process for chain wheels that is still in use at KÖBO today. They were truly ahead of their time. KÖBO has used this type of innovative thinking for a lasting success across multiple industries. Innovation coupled with a deep customer understanding allows the company to see the bigger picture - and it still characterizes the company today.

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