⚙️ Lock in power, unlock performance — the sprocket that means business!
The FOCMKEAS 21 Tooth Roller Chain Sprocket is a high-precision, single-strand sprocket made from hardened C45 carbon steel with a black oxide coating for enhanced durability and corrosion resistance. Featuring a 1/4-inch pitch and 12mm bore, it includes two set screws and a Type B hub to ensure secure shaft mounting. Ideal for industrial power transmission in demanding environments, this sprocket delivers reliable torque support and long service life.
| Manufacturer | FOCMKEAS |
| Part number | 21T/12mm Bore |
| Item Weight | 75 g |
| Package Dimensions | 12 x 9.3 x 1.7 cm; 75 g |
| Item model number | 21T/12mm Bore |
| Size | 21T/12mm Bore |
| Colour | Black |
| Material | Carbon Steel |
| Item Package Quantity | 1 |
| Teeth Per Inch | 0.25 inches |
| Special Features | single_strand, triple_strand |
| Batteries included? | No |
| Batteries Required? | No |
N**N
Great fit!
R**W
Doesn't stay clamped to axle.
A**R
Fit great
H**R
Inaccurate bore size
Trustpilot
1 month ago
2 months ago
