Modular design, shorter lead times
Modular production, buffered components and ERP planning help shorten delivery cycles.
R SERIES
R Series Helical Gearbox | Inline Helical Gear Reducer
A practical starting point for in-line coaxial transmission layouts where compact axial length matters.
OutputCoaxial output
HighlightMost compact
Torque ref.18,000 N·m
Efficiency≥96%
Indicative priceCNY 558 – 12,420
FOB reference range for the standard model range (Incoterms 2020): the seller delivers the goods on board at the named port of shipment. Freight, insurance, duties and taxes beyond that point are not included. Final price depends on model, ratio, motor interface and quantity.
Overview
What an inline helical gearbox does in a coaxial drive
SANYOO applies European technology with modular redesign across the S, R, K and F families. Ribbed high-rigidity cast-iron housings aid heat dissipation, vibration damping and quieter running. Sealing supports continuous duty in humid or corrosive settings. Multiple ratio and mounting options suit frequent starts and motor integration.
Primary use: reduce motor speed and increase torque for industrial power transmission.
Typical customers: Power & energy, water treatment, light industry & food
Applicable standards: ISO 9001:2015, CE (Machinery Directive 2006/42/EC)
Advantages
Why R series housings and gearing suit continuous duty
“127” response model
10% urgent same-day, 20% rush within 3 days, 70% standard within 10 days.
German process standards
42CrMo forged gears, quenched & tempered, carburized & quenched, then precision ground; surface hardness HRC60–64.
Scale manufacturing
Sihong: 3,000,000 gearboxes/year; Huoshan: 20,000 assemblies/year; group assembly capacity 200,000/year.
Export experience
Exports to Europe, Africa and Asia; long-term partners include major Chinese industrial groups.
Specifications
R Series Helical Gear Reducer
OutputCoaxial output
Torque18,000 N·m
Efficiency≥96%
- Models
- R17–R167, RX37–RX157
- Power
- 0.12–160 kW
- Ratio
- 1.30–21545
- Permissible torque
- 40–18000 N·m
- Transmission efficiency
- ≥96%
- Output shaft
- Solid shaft / hollow shaft
- Mounting
- Foot-mounted / flange-mounted
- Materials
- Housing: HT250 cast iron; gears: forged 42CrMo alloy steel
- Gear grade
- Grade 6 (GB/T 10095)
- Hardness
- HRC60–64
- Protection
- IP55 (standard) / IP65 (optional)
- Standards
- ISO 9001:2015, CE (Machinery Directive 2006/42/EC)
Notes
Limits to confirm before you specify an R unit
Ambient outside -20°C to +40°C may require a custom discussion.
Hazardous areas requiring explosion protection need certified motors and system confirmation.
Standard supply includes unit, key, seals and plugs; flanges, torque arms and backstops are optional.
Related applications
Where R series gearboxes are installed
Have a drive requirement to review?