Description
Product Overview
The SUS2050RB is a large-roller double-pitch stainless steel sprocket for No.2050R SS chain (also catalogued as No.2052 SS). With a 31.75 mm pitch and 19.05 mm roller diameter — the same roller as No.100 standard chain — this product is the medium-pitch member of the large-roller double-pitch family, handling heavier unit loads than the 2040R while maintaining the track-running and guide-rail compatibility that makes large-roller chain the preferred choice for overhead conveyor and power-and-free systems.
Manufactured in 304-grade stainless steel at our Hangzhou CNC facility, the SUS2050RB covers 10 through 13 effective teeth and is a direct-fit replacement for Tsubaki 2052 stainless, Renold 2050R, and equivalent Rexnord 2052-series components. Custom bores and tooth counts are available with competitive lead times from our factory — no distributor margin in the supply chain.
Chain Parameters
Dimensional Specifications — SUS2050RB
All standard configurations. Outside diameter, pitch diameter, bore range, hub dimensions, and part weight for each effective tooth count. Custom bores within the hub are available with short lead time.
| Eff. Teeth | Outside Dia. (mm) | Pitch Dia. (mm) | Stock Bore (mm) | Min Bore (mm) | Max Bore (mm) | Hub BD (mm) | Hub BL (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 10 | 116 | 102.75 | 16 | 18 | 48 | 73 | 28 | — |
| 11 | 127 | 112.70 | 16 | 18 | 48 | 73 | 28 | — |
| 12 | 138 | 122.67 | 18 | 20 | 48 | 73 | 28 | — |
| 13 | 148 | 132.67 | 18 | 20 | 48 | 73 | 28 | — |
The Role of 19.05 mm Large Roller in Drive Design
The 19.05 mm roller of No.2050R / 2052 chain is identical to the roller on standard No.100 chain. This large roller diameter provides a high contact area when the chain runs on flat steel or polymer guide rails — critical for horizontal curved sections of overhead conveyors where the chain must support lateral load. The SUS2050RB tooth form is precision-hobbed for this specific roller geometry, ensuring correct seating in the gullet and smooth approach on the tooth flank.
For machine designers, the consequence is that No.2050R / 2052 chain can traverse tighter horizontal curves than small-roller chain of the same pitch — the larger roller rolls cleanly on the curve radius rather than dragging on a point contact. This makes the 2050R system a practical choice for complex conveyor layouts where the chain must navigate both horizontal and vertical curves in a limited floor or ceiling space.
Performance Features
Application Areas
| Application | Use Case | Key Requirement |
|---|---|---|
| Automotive overhead conveyors | Power-and-free systems, body shop trolleys | High load, curved layout |
| Food & beverage | Carcass conveyors, overhead wash-down lines | Stainless, hygiene |
| Distribution & logistics | Tote-bin overhead systems, sorter carriers | Low noise, long span |
| Pharmaceutical | Overhead product transport, cleanroom conveyors | Zero contamination |
| Cold storage facilities | Overhead conveying in frozen or chilled zones | Corrosion resistance at −30 °C |
Matching Components & Related Parts We Supply
We supply matched components for a complete No.2050R stainless drive system.
What Our Customers Say
“We operate 14 overhead trolley conveyors in our meat-processing plant, all using SUS2050RB sprockets. Now sourcing from Ever-Power — same quality as the Renold parts we used before but with faster lead times and lower cost.”
“SUS2050RB with 48 mm bores ordered for a pharmaceutical overhead conveyor refurb. Dimensions correct, passivation finish clean and even. Delivery in 11 days. Very professional operation.”
“Solid product that does exactly what it says. We verified dimensions against our Tsubaki 2052 sample — matched in all critical parameters. Would appreciate a slightly faster quote turnaround for urgent orders, but overall very positive.”
Specify your effective tooth count, bore, and quantity — SUS2050RB quote returned within 24 hours.
📍 SHENHUA ROAD, HANGZHOU, CHINA · 📞 +86-571-88220653
