RS25-1B-9T Sprocket for Compact Machinery and Robotics
Part Code: RS25-1B-9T
Part Name: Sprocket for Compact Machinery and Robotics
Part Name: Sprocket for Compact Machinery and Robotics
Part Code: RS25-1B-9T
Usage: This Sprocket is used in Power transmission in compact machinery, robotics, automation systems, hobby projects, conveyors, and precision equipment.
Application of Compact RS25 Miniature Robotics & Automation Sprocket
Designed for Precision in Small-Scale Motion Systems:
Used in compact robotic arms, linear actuators, automated positioning modules, and educational robotics kits. Also widely adopted in hobby engineering projects like RC vehicles, model mechanisms, DIY conveyors, and maker-grade builds.
Optimized for Miniature Power Transmission:
Found in laboratory instruments, compact feeding/sorting machines, test rigs, and small conveyor units. Fully compatible with Flipsky, Makeblock, Arduino-based projects, and other lightweight chain-driven systems.
Why This Sprocket Design Performs Well:
- Ultra-compact 5.08 mm bore and 9-tooth profile fit miniature shafts and tight assemblies.
- Low tooth count enables high rotational speed with moderate torque, ideal for small motors.
- Multiple M5 threaded holes support secure, precise mounting in custom robotics and automation platforms.
- Lightweight, hardened steel construction ensures excellent durability and corrosion resistance.
- ANSI/DIN standard profile guarantees easy global chain compatibility.
Summary
A compact, high-precision RS25 sprocket built for robotics, hobby engineering, lab automation, and miniature conveyor systems. Engineered for smooth motion, reliable chain engagement, and long-term stability in small-format mechanical designs.
| Parameter | Value / Description |
|---|---|
| Application | Robotics, automation, hobby projects, compact conveyors, model engineering, precision instruments, light-duty drives |
| Chain Standard | ANSI #25-1 Simplex Roller Chain |
| Number of Teeth | 9 |
| Pitch | 6.35 mm (1/4") |
| Pitch Circle Diameter (PCD) | ~18.54 mm (calculated for 9T, #25 chain) |
| Outside Diameter (OD) | Ø0.84" (21.34 mm, per drawing) |
| Bore Diameter | Ø0.20" (5.08 mm, per drawing) |
| Hub Diameter | Ø0.43" (10.92 mm, per drawing) |
| Face Width (Overall) | 0.59" (14.99 mm, per drawing) |
| Hub/Inner Width | 0.11" (2.79 mm, per section) |
| Shoulder Width | 0.16" (4.06 mm, per section) |
| Extended Width | 0.32" (8.13 mm, per section) |
| Mounting Type | 2 x Ø0.17" through holes, M5-6H threaded holes |
| Material Property | Medium/high carbon steel, may be hardened |
| Surface Treatment | Black oxide, phosphate, or zinc plated |
| Teeth Details | Precision cut per ANSI/DIN standards |
| Total Weight | ~0.06–0.12 kg (approx., based on drawing) |
| Sample Chain Pull (F) | 150–400 N (light-duty) |
| Sample Sprocket Speed (N) | 500–3000 RPM (robotics, hobby, precision use) |
| Sample Torque (T) | 0.2–1.5 Nm |
| Sample Power (P) | Up to 0.03 kW |
| Induction Hardening | Optional, 0.08–0.12 mm depth, 40–45 HRC |
