The SPB180-3-2517 pulley is a fundamental transmission component designed for medium-to-heavy loads and high-impact operating conditions. Compared with the SPA series, the SPB groove profile has a wid...
See Details








The Mn3 β15° Z30 helical gear is designed for parallel-shaft high-speed, heavy-load, low-noise conditions. The 15° helix angle combined with quenched and tempered 40Cr material surpasses a spur gear of the same size in both load capacity and running smoothness.
| Item | Specification |
| Normal module | 3 |
| Number of teeth | 30 |
| Helix angle | 15° |
| Normal pressure angle | 20° |
| Material | 40Cr, quenched and tempered |
| Pitch circle diameter | 93.17mm |
| Transmission ratio | 1:1~6:1 |
| Pitch line velocity | ≤40m/s |
| Transmission efficiency | 97%~99% |
| Machining | Gear hobbing, gear grinding; carburizing and quenching available |
Shanghai Rentai Transmission Equipment Co., Ltd. is a manufacturer specializing in R&D, production and export of mechanical transmission components. Our main products include taper lock pulleys, taper lock bushes, timing pulleys, V-belts and timing belts. We also provide OEM & ODM custom service for non-standard transmission parts. Our factory covers over 8000 square meters, with more than 100 employees including 22 technical staff. We integrate casting, machining and finishing, equipped with CNC machines and testing instruments, with an annual casting output of 2000 tons. Supported by complete quality management system and international standards, our products are exported to Southeast Asia, Middle East, Europe and America, delivering reliable transmission solutions for global industrial clients.

Industry Experience

Production staff
Annual Production
Factory Area
We are an integrated modern machinery manufacturer specializing in the production of internationally standard pulleys (S...

Pulleys are generally used for power transmission over long distances, so they have a wide range of applications, such a...

Precautions for Installing Welding Platforms When installing the welding platform, place the supporting brackets at the...
