12B Sprockets with Hub and Hardened Teeth for DIN 8187 Roller Chains (B Series)
12B sprockets with a hub and hardened teeth are designed for drives with all types of 12B (3/4″ × 7/16″) roller chains of the so-called European series (B series), standardized to ISO 606 (DIN 8187). They are manufactured in simplex and duplex design.
12B-1 (Simplex)
12B-2 (Duplex)
Sprockets Fields of Use
12B sprockets with a hub and hardened teeth for DIN 8187 chains are designed for general use in light and medium-duty industries.
They are primarily used in drives but can also be utilized for lifting or material transport.
Sprockets Material
Steel C43.
Other materials available on request.
Sprockets Code Description
Example:
12B-1-25-NK (3/4 × 7/16) - 25 Teeth, with Hub, Hardened Teeth (Steel)
| Code Part | Description |
|---|---|
| 12B |
Chain type |
| 1 |
Simplex design |
| 25 |
Number of teeth |
| NK |
Design with hub and hardened teeth |
| 3/4 × 7/16 |
Pitch (in inches) × inner width (in inches) |
| 25 Teeth, with Hub, Hardened Teeth (Steel) |
Sprocket design and material |
Documents for Download
Dimensions and Parameters of 12B Sprockets with Hub and Hardened Teeth for DIN 8187 Roller Chains
TYMA CZ Data Sheets
Czech and English (PDF 751.80 kB)
Related Products
12B Sprockets with Hub for DIN 8187 Roller Chains (B Series)
12B Taper Lock Sprockets with Hardened Teeth for DIN 8187 Roller Chains (B Series)
12B Drive Roller Chains
Dimensions in inches: 3/4" × 29/64"
Universal Chain Tensioners
Sliding blocks, sprockets with screw and idler sprockets for tensioning of industrial roller chains during operation.
Sliding Chain Guides for Separate Mounting
Standard chain sliding guides fixed separately directly on the machines.
