Hardened steel sprocket for half inch (1/2") roller chain. There is a 25mm bore with keyway, set screws and key.
This sprocket is compatible with series #40 chain. The amount of chain required depends on the desired distance between your two sprockets; for installation details see the Rotary Motion Primer.
If you're building a rotary transmission system of any kind, chances are you'll need some rotary shaft. Here's a list of rotary shaft compatible with this sprocket:
| Physical Properties | |
|---|---|
| Inner Diameter | 25 mm |
| Number of Teeth | 20 |
| Sprocket Series | # 40 |
| Product | Physical Properties | ||||
|---|---|---|---|---|---|
| Image | Part Number | Price | Inner Diameter | Number of Teeth | Sprocket Series |
 |
TRM4144_0 | $2.80 | 12 mm | 9 | # 40 |
 |
TRM4145_0 | $3.55 | 12 mm | 14 | # 40 |
 |
TRM4146_0 | $4.45 | 12 mm | 20 | # 40 |
 |
TRM4147_0 | $3.00 | 1⁄2″ | 9 | # 40 |
 |
TRM4148_0 | $3.00 | 14 mm | 9 | # 40 |
 |
TRM4149_0 | $4.65 | 14 mm | 20 | # 40 |
 |
TRM4150_0 | $3.00 | 5⁄8″ | 9 | # 40 |
 |
TRM4151_0 | $4.65 | 17 mm | 20 | # 40 |
 |
TRM4152_0 | $7.40 | 17 mm | 40 | # 40 |
 |
TRM4153_0 | $4.65 | 19 mm | 20 | # 40 |
 |
TRM4154_0 | $4.65 | 24 mm | 20 | # 40 |
 |
TRM4155_0 | $4.65 | 25 mm | 20 | # 40 |
 |
TRM4156_0 | $8.00 | 25 mm | 40 | # 40 |
 |
TRM4157_0 | $13.35 | 25 mm | 60 | # 40 |
 |
TRM4161_0 | $3.75 | 12 mm | 13 | # 40 |
