12B Double-Single Sprockets for 2 Simplex DIN 8187 Roller Chains (B-Series)
12B double-single sprockets are designed for a pair of 12B-1 (3/4″ × 7/16″) simplex roller chains of the so-called European series (B-series), standardized to ISO 606 (DIN 8187).
Sprockets in the double-single design replace 2 simplex sprockets, simplifying installation, saving space on the shaft, and increasing transmission reliability. The shared hub also minimizes the risk of misalignment.
Products are sorted by name in ascending order.
12B-1-12-D (3/4” × 7/16”) - 12 Teeth, for 2 Simplex Chains (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.
349,60CZK excl. VAT
423,00CZK incl. VAT
12B-1-13-D (3/4” × 7/16”) - 13 Teeth, for 2 Simplex Chains (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.
397,50CZK excl. VAT
481,00CZK incl. VAT
12B-1-14-D (3/4” × 7/16”) - 14 Teeth, for 2 Simplex Chains (Steel)
Sprocket
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
453,40CZK excl. VAT
548,70CZK incl. VAT
12B-1-15-D (3/4” × 7/16”) - 15 Teeth, for 2 Simplex Chains (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.
504,50CZK excl. VAT
610,40CZK incl. VAT
12B-1-16-D (3/4” × 7/16”) - 16 Teeth, for 2 Simplex Chains (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.
565,50CZK excl. VAT
684,20CZK incl. VAT
12B-1-17-D (3/4” × 7/16”) - 17 Teeth, for 2 Simplex Chains (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.
629,50CZK excl. VAT
761,60CZK incl. VAT
12B-1-18-D (3/4” × 7/16”) - 18 Teeth, for 2 Simplex Chains (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.
703,00CZK excl. VAT
850,60CZK incl. VAT
12B-1-19-D (3/4” × 7/16”) - 19 Teeth, for 2 Simplex Chains (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.
773,80CZK excl. VAT
936,30CZK incl. VAT
12B-1-20-D (3/4” × 7/16”) - 20 Teeth, for 2 Simplex Chains (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.
843,50CZK excl. VAT
1 020,60CZK incl. VAT
12B-1-21-D (3/4” × 7/16”) - 21 Teeth, for 2 Simplex Chains (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.
920,00CZK excl. VAT
1 113,20CZK incl. VAT
12B-1-23-D (3/4” × 7/16”) - 23 Teeth, for 2 Simplex Chains (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.
1 098,00CZK excl. VAT
1 328,60CZK incl. VAT
12B-1-25-D (3/4” × 7/16”) - 25 Teeth, for 2 Simplex Chains (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.
1 271,50CZK excl. VAT
1 538,50CZK incl. VAT
Products are sorted by name in ascending order.
Sprockets Fields of Use
12B double-single sprockets are designed for use in conveyor systems.
They are commonly used in equipment where shafts or rollers are driven in series, particularly in roller conveyors, packaging machines, processing lines, and many other types of equipment.
Sprockets Material
C43 steel.
Other materials available on request.
Sprockets Code Description
Example:
12B-1-15-D (3/4″ × 7/16″) - 15 Teeth, for 2 Simplex Chains (Steel)
| Code Part | Description |
|---|---|
| 12B |
Type of chain |
| 1 |
Simplex chain |
| 15 |
Number of teeth |
| D |
Double-single design – for 2 simplex roller chains |
| 3/4″ × 7/16″ |
Pitch in inches × inner width in inches |
| 15 Teeth, for 2 Simplex Chains (Steel) |
Design and material of the sprocket |
Documents for Download
Dimensions and Parameters of Double-Single Plate Wheels for 2 DIN 8187 Roller Chains
TYMA CZ Data Sheets
Czech and English (PDF 156.44 kB)
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