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 available 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 (1 1/4” × 3/4”) - 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
Products are sorted by name in ascending order.
Typical Applications
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.
Materials
C43 steel.
Other materials available on request.
Sprocket Code Description
Example:
20B-1-17-TK (1 1/4″ × 3/4″) - 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 |
| 1 1/4″ × 3/4″ |
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
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