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.
19.85€ excl. VAT
24.02€ 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.
29.89€ excl. VAT
36.17€ 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.
35.55€ excl. VAT
43.01€ 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.
41.04€ excl. VAT
49.66€ 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.
37.98€ excl. VAT
45.95€ 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.
46.39€ excl. VAT
56.13€ 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.
58.73€ excl. VAT
71.06€ 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.
50.30€ excl. VAT
60.86€ 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.
57.72€ excl. VAT
69.85€ 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.
71.68€ excl. VAT
86.74€ 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.
84.67€ excl. VAT
102.45€ 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.
109.51€ excl. VAT
132.51€ 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.
158.42€ excl. VAT
191.69€ 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.
10.63€ excl. VAT
12.87€ 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.
13.50€ excl. VAT
16.33€ 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.
15.95€ excl. VAT
19.30€ 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.
54.15€ excl. VAT
65.52€ 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.
75.61€ excl. VAT
91.48€ 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.
80.16€ excl. VAT
97.00€ 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.
89.01€ excl. VAT
107.70€ 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)



