ISO DIN standard chains are transmission roller chains manufactured according to international ISO standards and German DIN standards, ensuring high precision, excellent load capacity, and outstanding durability. Thanks to their global compatibility, these chains are widely used in conveyor systems, industrial machinery, agriculture, and mechanical engineering, becoming the standard choice for modern power transmission systems.
What Is an ISO DIN Standard Chain?
In mechanical engineering and industrial power transmission, transmission chains are important components used to transfer power and motion between machine parts. Among them, ISO/DIN standard chains are roller chains manufactured according to international ISO standards and German DIN standards, ensuring precision, durability, and high load-bearing capacity.
Thanks to compliance with these standards, ISO/DIN chains offer global compatibility and can be easily used in various machinery systems.
The easiest way to identify ISO/DIN standard chains is that their chain codes always end with the suffix “B”.
Examples: 08B-1, 10B-2, 12B-1,...
What Are ISO and DIN Standards?
ISO Standard
ISO (International Organization for Standardization) is an international standardization organization that issues technical standards for many industries, including mechanical engineering.
For transmission chains, ISO specifies mandatory parameters to ensure synchronization and operational safety, including:
- Chain pitch
- Roller diameter
- Inner width
- Minimum tensile strength
Common standard code: ISO 606 – specifies roller chains and sprockets.
DIN Standard
DIN (Deutsches Institut für Normung) is the German Institute for Standardization, known for its strict mechanical engineering standards.
DIN standards are similar to ISO standards but are often more detailed regarding precision and tolerances, helping products achieve higher operational stability.
Common standard code: DIN 8187 – applies to European-style short-pitch roller chains.
Structure of ISO/DIN Standard Chains
Manufacturing Materials
ISO/DIN chains are made from high-quality alloy steel, processed through heat treatment and surface hardening to improve hardness, wear resistance, and service life in industrial environments.
Main Components
- Inner Link Plate: Includes two inner plates combined with rollers mounted on bushings, creating the load-bearing structure and pivot points.
- Outer Link Plate: Includes two outer plates and two pins, responsible for securely connecting the inner links.
- Roller: Directly contacts the sprocket teeth to reduce friction and minimize wear.
- Pin: The main tensile load-bearing shaft, hardened to improve deformation resistance and durability.
- Bushing: Stabilizes the roller, reduces wear, and ensures smooth movement.
Types of ISO DIN Standard Chains
Short Pitch Roller Chains
- Standard: ISO 606 / DIN 8187 (Series B)
- Features: The most common chain type on the market, accounting for about 90% of demand. Small pitch design allows smooth transmission at high speeds.
- Common codes: 05B, 06B, 08B, 10B, 12B, 16B...
Double Pitch Chains
- Standard: ISO 1275
- Features: Same roller size and inner width as short pitch chains, but with double the pitch length.
- Applications: Used in long conveyor systems with low speed and light loads to reduce cost and chain weight.
- Common codes: C2040, C2050, C2060...
Heavy Duty Chains
- Features: Designed with thicker link plates and larger pins than standard chains to withstand extreme impact loads.
- Applications: Used in excavators, bulldozers, stone crushers, and heavy-duty machinery.
Common Applications
- Industrial Manufacturing: Used in conveyor systems, packaging machines, and assembly lines to provide stable transmission and improve productivity.
- Agriculture: Applied in harvesters, seeders, and tillage machines for durable operation in harsh environments.
- Mining Industry: Used in coal conveyors and drilling machines, offering high load capacity and strong wear resistance.
- Automotive & Motorcycles: Plays an important role in engine transmission and cam systems, ensuring smooth and accurate vehicle operation.
- Mechanical Engineering: Commonly used in CNC machines and metal processing equipment for precise power transmission and stable machining performance.
Why Choose ISO DIN Standard Chains from Belota?
To ensure smooth production line operation, choosing the correct standard alone is not enough, you also need reliable quality. ISO DIN standard chains supplied by Belota meet strict technical requirements:
- Premium Materials: Manufactured from SCM415 or C45 alloy steel with carburizing heat treatment for high surface hardness and a tough core.
- Precision Manufacturing Technology: Pins, bushings, and rollers are finely polished to minimize friction during operation.
- Full CO/CQ Documentation: Clear certificates of origin and quality, suitable for factories requiring strict inspection documents.
Contact Belota today via Hotline/Zalo 0917 657 946 for chain selection consultation and the best quotation offers!
