| 中文名稱 | 英文術語 | 常用縮寫/別名 |
|---|---|---|
| 大鏈輪 (輪端) | Large Sprocket | Driven Sprocket, Rear Gear |
| 小鏈輪 (電機端) | Small Sprocket | Drive Sprocket, Motor Pinion |
| 齒數 | Tooth Count | 50T, 10T (T = Teeth) |
| 鏈條型號 | Chain Pitch / Size | #25, T8F, #35 |
| 安裝孔位 | Mounting Pattern | BCD (Bolt Circle Diameter) |
Sprocket (鏈輪): 這是專指與「鏈條」嚙合的帶齒輪子。如果它是用皮帶帶動的，則稱為 Pulley (皮帶輪)。
Driven Sprocket / Rear Sprocket: 指安裝在輪子上的那個「大齒盤」。
Drive Sprocket / Motor Sprocket / Pinion: 指安裝在電機軸上的那個「小齒輪」。
Large Sprocket
info
A sprocket (or sprocket-wheel) is a profiled wheel with teeth that mesh with a chain, track, or other perforated or indented material.
It is distinguished from a gear in that sprockets are never meshed together directly, and from a pulley in that sprockets have teeth and pulleys are smooth.
Key Characteristics of a Sprocket
The design of a sprocket is strictly tied to the specific chain it is intended to drive. Key parameters include:
- Teeth (Z): The number of individual projections that engage the chain links.
- Pitch (P): The distance between the centers of two consecutive teeth. This must match the chain's pitch perfectly.
- Bore: The center hole where the shaft (e.g., a motor shaft) is inserted.
- Hub: The raised portion around the bore that often contains a set screw or keyway to lock the sprocket to the shaft.
Sprocket vs. Gear: The Main Differences
| Feature | Sprocket | Gear |
|---|---|---|
| Engagement | Meshes with a chain or belt. | Meshes directly with another gear. |
| Distance | Ideal for long-distance power transfer. | Usually requires close proximity. |
| Slip | No slip (due to teeth). | No slip (due to teeth). |
| Maintenance | Requires chain tensioning and lubrication. | Requires alignment and lubrication. |
Common Applications
- Bicycles & Motorcycles: The most recognizable use. The "chainring" at the pedals and the "cassette" at the rear wheel are both sprockets.
- Tracked Vehicles: Tanks, bulldozers, and excavators use a large drive sprocket to pull the heavy metal tracks.
- Industrial Conveyors: Moving goods along a factory floor often relies on long chain drives powered by sprockets.
- Robotics & DIY Projects: Especially useful for mobile platforms like your Rover V2 if you are moving from a direct-drive wheel to a tank-tread or high-torque chain system.