20B-1 Sprockets with Hub and Hardened Teeth for DIN 8187 Roller Chains (B-Series)
20B-1 sprockets with a hub and 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).
Products are sorted by name in ascending order.
20B-1-11-NK (1 1/4″ × 3/4″) - 11 Teeth, with Hub, 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.
20.48€ excl. VAT
24.79€ incl. VAT
20B-1-12-NK (1 1/4″ × 3/4″) - 12 Teeth, with Hub, 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.
30.85€ excl. VAT
37.33€ incl. VAT
20B-1-13-NK (1 1/4″ × 3/4″) - 13 Teeth, with Hub, 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.
36.69€ excl. VAT
44.39€ incl. VAT
20B-1-14-NK (1 1/4″ × 3/4″) - 14 Teeth, with Hub, 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.
42.35€ excl. VAT
51.25€ incl. VAT
20B-1-15-NK (1 1/4″ × 3/4″) - 15 Teeth, with Hub, 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.
39.20€ excl. VAT
47.43€ incl. VAT
20B-1-16-NK (1 1/4″ × 3/4″) - 16 Teeth, with Hub, 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.
47.88€ excl. VAT
57.93€ incl. VAT
20B-1-17-NK (1 1/4″ × 3/4″) - 17 Teeth, with Hub, 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.
60.61€ excl. VAT
73.34€ incl. VAT
20B-1-18-NK (1 1/4″ × 3/4″) - 18 Teeth, with Hub, 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.
51.92€ excl. VAT
62.82€ incl. VAT
20B-1-20-NK (1 1/4″ × 3/4″) - 20 Teeth, with Hub, 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.
59.58€ excl. VAT
72.09€ incl. VAT
20B-1-21-NK (1 1/4″ × 3/4″) - 21 Teeth, with Hub, 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.
73.99€ excl. VAT
89.52€ incl. VAT
20B-1-24-NK (1 1/4″ × 3/4″) - 24 Teeth, with Hub, 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.
87.39€ excl. VAT
105.74€ incl. VAT
20B-1-28-NK (1 1/4″ × 3/4″) - 28 Teeth, with Hub, 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.
113.03€ excl. VAT
136.77€ incl. VAT
20B-1-35-NK (1 1/4″ × 3/4″) - 35 Teeth, with Hub, 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.
163.50€ excl. VAT
197.84€ incl. VAT
20B-1-08-NK (1 1/4″ × 3/4″) - 8 Teeth, with Hub, 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.
10.98€ excl. VAT
13.28€ incl. VAT
20B-1-09-NK (1 1/4″ × 3/4″) - 9 Teeth, with Hub, 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.
13.93€ excl. VAT
16.86€ incl. VAT
20B-1-10-NK (1 1/4″ × 3/4″) - 10 Teeth, with Hub, 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.
16.46€ excl. VAT
19.92€ incl. VAT
20B-1-19-NK (1 1/4″ × 3/4″) - 19 Teeth, with Hub, 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.
55.88€ excl. VAT
67.62€ incl. VAT
20B-1-22-NK (1 1/4″ × 3/4″) - 22 Teeth, with Hub, 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.
78.03€ excl. VAT
94.42€ incl. VAT
20B-1-23-NK (1 1/4″ × 3/4″) - 23 Teeth, with Hub, 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.
82.74€ excl. VAT
100.11€ incl. VAT
20B-1-25-NK (1 1/4″ × 3/4″) - 25 Teeth, with Hub, 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.
91.86€ excl. VAT
111.16€ incl. VAT
Products are sorted by name in ascending order.
Typical Applications
20B-1 sprockets with a hub and 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-1-35-NK (1 1/4″ × 3/4″) - 35 Teeth, with Hub, Hardened Teeth (Steel)
| Code Part | Description |
|---|---|
| 20B |
Chain type |
| 1 |
Simplex design |
| 35 |
Number of teeth |
| NK |
Design with hub and hardened teeth |
| 1 1/4″ × 3/4″ |
Pitch (in inches) × inner width (in inches) |
| 35 Teeth, with Hub, Hardened Teeth (Steel) |
Sprocket design and material |
Documents for Download
Dimensions and Parameters of 20B Sprockets with Hub and Hardened Teeth for DIN 8187 Roller Chains
TYMA CZ Data Sheets
Czech and English (PDF 763.16 kB)



