RC series Helical Geared Motor
Engineered for industrial automation, our RC series helical geared motor provides 0.1–560 rpm output. Trust our helical geared motor manufacturer for precision.
View productA spiral bevel gearbox sits between the motor and the driven shaft, turning the drive through 90° and stepping speed down while its spiral bevel teeth keep engagement smooth and shock loads low. That behaviour is why the TC series is used for in-line transmission and for synchronized hoisting equipment, where two sides of a machine must lift together. Shortlisting spiral bevel gearbox manufacturers gets easier once torque, ratio and shaft layout are fixed first, and when the drive ships as a complete package it is normally matched with a motor from a bevel gear motor manufacturer across the 0.18–90 kW band.
The unit is a right-angle transmission gearbox built around spiral bevel gearing. Its job is to change the direction of a drive by 90° while carrying torque through, and to work as a commutator — taking one rotating shaft in on one axis and sending rotation out on another. The product page describes the TC series as a transmission gearbox that uses spiral bevel gears to perform this commutator function, with stable operation and large transmission torque.
In a drive train the gearbox sits in the middle of the chain: motor, coupling, spiral bevel gearbox, driven shaft. Because the spiral tooth form gives smoother engagement and more accurate angular transmission than a straight tooth, shock loads reaching the driven machine are reduced, and the unit is described as running with low noise and low vibration over long service periods.
The product page names two application families for the series: in-line transmission, where the gearbox redirects and steps down a drive line, and synchronized hoisting, where matched outputs must move together. Both depend on the same three variables — torque, ratio and spindle layout — that the modules below work through in order.
These six envelope figures are the ones that decide whether the series fits your drive before you pick a model number. Each is quoted from the product page.
Sets the slow end of your driven shaft. Ratio choice is what moves you up or down this band.
The sizing number. Permitted torque per model is listed model by model in the range table below.
Lets you size from the motor you already have, or from the torque your driven machine demands.
A direction change with a modest step-down — not a large single-stage reduction.
Sets the mounting interface height and how much room the driven pulley or coupling needs.
Quoted without oil and motor. Shaft and flange input add roughly 10% to these figures.
The complete quick-selection table from the product page: model, solid shaft diameter, centre height, power band, ratio range, permitted torque and unit weight.
| Model | Shaft dia. solid (mm) | Centre height (mm) | Power (kW) | Ratio | Permitted torque (Nm) | Weight (kg) |
|---|---|---|---|---|---|---|
| TC2 | 15k6 | 52h13 | 0.06~2.2 | 1:1~1:2 | 30 | 2.2 |
| TC4 | 19k6 | 76h13 | 0.12~5.5 | 1:1~1:2 | 50 | 11 |
| TC6 | 25k6 | 92h13 | 0.12~15 | 1:1~1:5 | 120 | 20 |
| TC7 | 32k6 | 100h13 | 0.18~22 | 1:1~1:5 | 210 | 32 |
| TC8 | 40k6 | 115h13 | 0.25~45 | 1:1~1:5 | 300 | 50 |
| TC10 | 45k6 | 140h13 | 0.55~75 | 1:1~1:5 | 520 | 80 |
| TC12 | 50k6 | 175h13 | 0.75~90 | 1:1~1:5 | 700 | 125 |
| TC16 | 60m6 | 200h13 | 1.1~110 | 1:1~1:5 | 2000 | 190 |
| TC20 | 72m6 | 245h13 | 1.5~200 | 1:1~1:5 | 5000 | 300 |
Footnote 1 — weight. The published remark reads: “the weight without oil and motor, shaft and flange input add 10%.” Add that margin to the figures above when you are calculating lifting, floor loading or mounting loads.
Footnote 2 — model range and power wording. The product page states “TC2~TC25” in its type and specification line, and separately says models range from TC2 to TC20. The quick-selection table above covers TC2 through TC20. Body copy also groups TC8, TC12 and TC16 as mid-range models with motor power up to 110 kW, while the table lists 110 kW against TC16 and 90 kW against TC12. Where wording and table differ, size from the table and confirm the exact rating with the supplier before ordering.
The series is offered in four spindle configurations. This module answers “which shape?” — the geometry question that comes before any torque or size calculation.
The standard right-angle commutator: one shaft in, one shaft out on a different axis, no extra gear stages.
One input splits to two outputs. The geometry usually chosen where two sides of a mechanism must be driven from a single motor.
Two drives combine into a single output shaft — the mirror of the dual-output layout, for paired supply into one driven line.
Two inputs, two outputs. A layout for machines where several shafts have to stay in step with each other.
Work these four steps in order and you will arrive at a model number, a ratio and a shaft layout. The figures in the worked example are illustrative pulls from the range table — they are method, not a rating.
Work out the torque the driven shaft actually needs, not the motor nameplate. That number is what selects the model row in the table, and permitted torque rises from 30 Nm at TC2 to 5000 Nm at TC20.
The series covers 1:1 to 1:5. If you need only a direction change, 1:1 keeps output speed equal to input speed; anything below that is a light step-down. Larger ratios require a different gearbox family.
Divide input speed by the ratio and confirm the result sits inside the published output-speed envelope and matches what the driven machine can accept.
Decide from the selector above whether you need one or two shafts on the output side, then confirm the unit can be mounted the way your frame allows — vertical or horizontal are both supported.
Your driven shaft needs about 1500 Nm and turns at about 350 rpm, driven by a motor running near 1450 rpm. Read across the range table:
| Model | Permitted torque (Nm) | Shaft dia. solid | Weight (kg) | Verdict for this duty |
|---|---|---|---|---|
| TC12 | 700 | 50k6 | 125 | Below the required 1500 Nm |
| TC16 | 2000 | 60m6 | 190 | Smallest model that covers the duty |
| TC20 | 5000 | 72m6 | 300 | Covers the duty with a much larger margin |
Ratio check: 1450 rpm ÷ 350 rpm ≈ 4.1, so a ratio near 1:4 sits inside the 1:1–1:5 range and inside the 0.1–1450 rpm output-speed band. Candidate model: TC16.
Tiebreaker when two adjacent models both qualify: take the smaller model whose permitted torque covers the calculated requirement, then check that its solid shaft diameter still suits your coupling or pulley bore — 60m6 on TC16 against 72m6 on TC20. Move up only if the shaft is undersized for the hub or if the duty is intermittent with frequent starts.
Configuration decisions that sit outside the torque calculation but still decide whether the drive installs cleanly.
The product page states the unit supports vertical or horizontal mounting. Confirm which orientation your frame uses before ordering, because the choice affects how the driven shaft and coupling align and how the unit is supported on the base.
Buyer decision: pick the orientation from the machine frame, not from floor-space convenience — the gearbox follows the shaft line.
The standard solid shaft structure is available with shaft input or flange input. A flange input suits a motor bolted directly to the housing; a shaft input suits a remote motor connected through a coupling.
Buyer decision: if you already own the motor, match the input type to that motor’s frame and shaft — then confirm the weight remark, which notes shaft and flange input add about 10% to the published unit weight.
Motor power for the series runs from 0.18 kW to 90 kW, and the model table gives a power band per model — from 0.06~2.2 kW on TC2 up to 1.5~200 kW on TC20. That lets you work from either end: the motor you have, or the torque you need.
Buyer decision: size from torque first and treat the motor power band as the confirmation step, not the starting point.
Before ordering, confirm that a right-angle unit is actually the right family for the machine. This is the layout decision, made on geometry rather than ratings.
The same site lists in-line alternatives — an RC series helical geared motor, an FC series parallel shaft helical geared motor and an HC series parallel shaft heavy duty industrial gear unit. Check each product page for its own ratings rather than assuming they transfer.
Send a complete request and you get a model number back instead of a follow-up question. These are the fields a spiral bevel gearbox supplier needs, followed by the checks worth making on any quotation.
Send the seven fields above and request a quotation for the TC series model that fits your drive.
Torque selects the model. Ratio sets the output speed. Spindle configuration and mounting decide whether it installs. Work the four steps, read across the TC2–TC20 table, and send the result through for a quotation.
Keep adjacent product options together for a faster catalog comparison.
Engineered for industrial automation, our RC series helical geared motor provides 0.1–560 rpm output. Trust our helical geared motor manufacturer for precision.
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View productit describes the unit’s function rather than a separate part. the product page describes the tc series as a transmission gearbox that uses spiral bevel gears to perform the commutator function, changing the direction of the drive while running stably and transmitting large torque.
the quick-selection table runs from tc2 to tc20, with solid shaft diameters from 15k6 to 72m6, centre heights from 52h13 to 245h13 and permitted torque from 30 nm to 5000 nm. the page also states “tc2~tc25” in its type and specification line; where the wording and the table differ, size from the table and confirm the exact rating with the supplier.
gear ratios run from 1:1 to 1:5 and output speed from 0.1 to 1450 rpm, with output torque up to 5000 nm. motor power is listed across a 0.18–90 kw band, and each model carries its own power range in the table.
four spindle configurations: 1-in & 1-out, 1-in & 2-out, 2-in & 1-out and 2-in & 2-out. they allow a single input to feed dual outputs or the reverse, and accommodate non-standard orientations without adding extra gear stages.
yes to both, according to the product page. the unit supports vertical or horizontal mounting, and the standard solid shaft structure is available with either shaft input or flange input. weight figures are quoted without oil and motor, and shaft and flange input add about 10%.
required output torque, gear ratio or target output speed, spindle configuration, mounting orientation, duty cycle, ambient conditions and motor power — plus whether a motor is needed with the gearbox. use the contact page or the inquiry form on the product page to send them.
