RUIDING · Jiangxi precision transmission

Ruiding
Compare the planetary architecture against the axis duty.

Jiangxi Ruiding's AF helical and PSE straight-tooth planetary families have different rating and precision tables. A common frame label or ratio does not make them equivalent. Begin with the actual torque, speed and positioning task, then compare one documented configuration and its motor interface.

Compare AF090 and PSE090 Prepare the interface drawing →

Two separately documented families

Helical AF and straight-tooth PSE.

AF · official helical planetary product image.

AF · precision helical planetary

The AF model sheet lists frames 060, 090, 115, 142, 180 and 220. Its single-stage ratio list is 3, 4, 5, 6, 7, 8 and 10; the two-stage list is separate. The performance table distinguishes P0, P1 and P2 precision, with availability depending on frame and stage.

Existing AF product information →

PSE · official straight-tooth planetary product image.

PSE · straight-tooth planetary

The PSE performance sheet uses its own frames, ratio rows and P1/P2 limits. Its model-code page and performance page should be read together when confirming a frame. Use the PSE sheet's torque and precision figures rather than transferring an AF limit to it.

Existing PSE product information →

A single-stage i=5 comparison at frame 090.

The values below come from separate official AF and PSE performance sheets. They are a specification comparison, not a finding that either unit is suitable for your machine or has interchangeable dimensions.

Catalogue field	AF090 · single stage · i=5	PSE090 · single stage · i=5
Nominal output torque	160 Nm	98 Nm
Emergency-stop torque	3× nominal = 480 Nm	2× nominal = 196 Nm
Nominal / maximum input speed	4,000 / 8,000 rpm	3,000 / 6,000 rpm
Backlash grades	P0 ≤1; P1 ≤3; P2 ≤5 arcmin	P1 ≤8; P2 ≤12 arcmin
Torsional rigidity	14 Nm/arcmin	7.5 Nm/arcmin
Listed single-stage mass	3.5 kg	3.0 kg
Published efficiency	≥95%	≥96%

Changing the ratio changes the nominal row.

At single-stage i=10, AF090 lists 100 Nm and PSE090 lists 50 Nm. Do not retain the i=5 torque while requesting i=10. Check the actual input speed, stage, torque spectrum and motor in the same selection.

Changing the stage changes precision.

AF090's two-stage P0/P1/P2 rows are ≤3/≤5/≤7 arcmin; its single-stage P0≤1 arcmin does not carry across. PSE090 two-stage P1/P2 are ≤12/≤15 arcmin. Specify the complete grade and measurement conditions in the order.

Emergency stop is not continuous duty.

The multiplier row is explicitly labelled emergency-stop torque. Supply actual stopping events, duration and repetition, and obtain an application selection. A torque multiple should not be used as a continuous or endlessly repeated operating allowance.

The code also describes the output shaft and motor.

The AF and PSE ordering diagrams distinguish S1 plain output shaft and S2 keyed output shaft. S2 is a shaft option, not an indication of two reduction stages.

Motor-side drawing

The official form asks for motor brand/model and installation dimensions. Provide flange size, pilot diameter/depth, bolt pattern, shaft diameter, usable length and any key or shoulder. Confirm the adapter drawing, shaft engagement and clamp/coupling assembly instructions.

For a retrofit, send the old reducer nameplate and motor drawing together. A matching motor power or flange outside dimension alone does not establish that the motor adapter fits.

Output-side load

Show coupling, pinion or pulley size; key/shaft fit; load position; radial/axial force; and the support layout. Ask for the bearing calculation at the actual speed and simultaneous loads, including any cantilever moment.

For a vertical axis, describe gravity load, braking and power-loss behaviour to the complete-system designer. Neither the reduction ratio nor backlash grade is a substitute for the machine's holding and stopping design.

Official QC page · photograph labelled CNC automatic gear measuring instrument. Original low-resolution image retained.

Manufacturing and inspection

Define the records needed for your axis.

The company's official QC page shows gear measurement, coordinate measurement, hardness, roundness and roughness equipment. Match the agreed material/process and inspection requirements to the supplied assembly: drawing revision, serial identity, shaft dimensions, measured backlash and any witnessed tests.

Ruiding's site identifies a Gao'an manufacturing location and planetary-reducer business. Historical government enterprise lists also name the legal entity; these records establish identity context rather than current product performance. Ask for current qualification documents if the purchasing specification requires them.

CNC, rack and precision automation

The official application navigation includes CNC and precision automation. Provide moving mass/inertia, motion profile, process force and position-error budget. Compare backlash with loaded compliance, coupling stiffness, encoder placement and support behaviour.

Printing, packaging and textile cycles

These are also named application categories. Give synchronisation tolerance, repeated starts, dwell, load reversals and shift hours. Agree the required grade and a duty calculation, plus noise and acceptance conditions where relevant.

Ask for one documented axis configuration.

Frame, ratio, stage, shaft code and motor interface belong on the same proposal.

Prepare sourcing request

Machine, quantity, axis task and installation envelope.
AF/PSE frame, ratio, stage and precision grade.
Continuous, repeated-peak and emergency-stop duty.
Motor dimension sheet and adapter scope.
S1/S2 shaft, coupling/pinion/pulley and external loads.
Motion profile and complete-system accuracy target.
Environment, mounting and lubrication/service requirements.
Drawing revision and traceable acceptance records.

Sources & review

Reviewed 8 October 2026. Numerical comparisons retain the frame, ratio, stage and grade from official image tables.

Ruiding · AF product, model code and performance sheet ↗Helical family, AF090 torque/speed/precision and shaft options.
Ruiding · PSE product, model code and performance sheet ↗Straight-tooth family and independent PSE090 ratings.
Ruiding · official QC equipment page ↗Original gear-measurement photograph and named inspection equipment.
Ruiding · official company and application navigation ↗Legal entity, 1 Ruiding Road address and application categories.
Jiangxi 2024 technology-based SME list · government-hosted record ↗Historical legal-name entry 3500, registration 2024360983A8004755; not a product certification.