20B Taper Lock Sprockets with Hardened Teeth for DIN 8187 Roller Chains (B Series)
20B taper bored sprockets with hardened teeth are designed for drives with all types of 20B-1 (1 1/4″ × 3/4″) simplex roller chains of the so-called European series (B series), standardized to ISO 606 (DIN 8187). They are manufactured in simplex design.
The sprockets are mounted on the shaft using Taper Lock bushes, which ensure a secure and precise fit. Additionally, the keyway provides reliable axial fixation against displacement.
Products are sorted by name in ascending order.
20B-1-15-TK (1 1/4 × 3/4) - 15 Teeth, TB 2517, Hardened Teeth (Steel)
Sprocket
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
43.17€ excl. VAT
52.23€ incl. VAT
20B-1-17-TK (5/8 × 3/8) - 17 Teeth, TB 2517, Hardened Teeth (Steel)
Sprocket
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
50.32€ excl. VAT
60.89€ incl. VAT
20B-1-19-TK (1 1/4 × 3/4) - 19 Teeth, TB 2517, Hardened Teeth (Steel)
Sprocket
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
58.21€ excl. VAT
70.44€ incl. VAT
20B-1-21-TK (1 1/4 × 3/4) - 21 Teeth, TB 2517, Hardened Teeth (Steel)
Sprocket
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
66.86€ excl. VAT
80.90€ incl. VAT
20B-1-23-TK (1 1/4 × 3/4) - 23 Teeth, TB 2517, Hardened Teeth (Steel)
Sprocket
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
76.39€ excl. VAT
92.44€ incl. VAT
20B-1-25-TK (1 1/4 × 3/4) - 25 Teeth, TB 2517, Hardened Teeth (Steel)
Sprocket
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
86.78€ excl. VAT
105.00€ incl. VAT
20B-2-45-TK (1 1/4 × 3/4) - 45 Teeth, TB 4040, Hardened Teeth (Steel)
Sprocket
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
656.85€ excl. VAT
794.79€ incl. VAT
Products are sorted by name in ascending order.
Sprockets Fields of Use
20B taper bored sprockets with hardened teeth for DIN 8187 chains are designed for general use, particularly in 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:
20B-1-17-TK (5/8 × 3/8) - 17 Teeth, TB 2517, Hardened Teeth (Steel)
| Code Part | Description |
|---|---|
| 20B |
Type of chain |
| 1 |
Simplex design |
| 17 |
Number of teeth |
| TK |
Design with tapered bore (Taper Lock) and hardened teeth |
| 5/8 × 3/8 |
Pitch in inches × inner width in inches |
| 17 Teeth, TB 2517, Hardened Teeth (Steel) |
Sprocket design, Taper Lock bush type and material of the sprocket |
Documents for Download
Dimensions and Parameters of Taper Bored Sprockets with Hardened Teeth for DIN 8187 Roller Chains
TYMA CZ Data Sheets
Czech and English (PDF 262.51 kB)
Related Products
Taper Lock Bushes
Taper Lock bushes with finished metric or inch bore and keyway to fixing components to a mating shaft without using any special tools.
20B Sprockets with Hub and Hardened Teeth for DIN 8187 Roller Chains (B Series)
20B Drive Roller Chains
Dimensions in inches: 1 1/4" × 3/4"
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.
