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| Place of Origin | CHINA |
| Brand Name | SEW |
| Certification | CE/3C |
| Model Number | R37DRN90S4 |
▶▶▶Description:
Helical gear units are the "hidden classics" in our gear unit portfolio: 6 single-stage and 15 two- and three-stage frame sizes cover a torque range from 50 to 18 000 Nm. This gear unit series is also far ahead in terms of gear unit ratios: from i = 1.30 to i = 289.74, in double gear units even i = 27 001. Torque ratings and gear unit ratios this finely stepped are hard to find in the market.
| R series helical gearmotors hard surface reducer ✪●✪ Product size&Technical data |
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| Gear unit size | R17 | R27 | R37 | R47 | R57 | R67 | R77 |
| Motor Power(KW) | 0.09-0.75 | 0.12-3 | 0.12-3 | 0.12-5.5 | 0.12-7.5 | 0.12-7.5 | 0.18-11 |
| gear ratio range | 3.83-81.64 | 3.37-135.09 | 3.41-134.82 | 3.83-176.88 | 4.59-186.89 | 4.29-199.81 | 5.31-195.24 |
| Mamax Gear unit(Nm) | 85 | 130 | 200 | 300 | 450 | 600 | 820 |
| Gear unit size | R87 | R97 | R107 | R127 | R137 | R147 | R167 |
| Motor Power(KW) | 0.25-30 | 0.25-37 | 2.2-45 | 2.2-55 | 5.5-90 | 9.2-90 | 9.2-200 |
| gear ratio range | 5.3-246.54 | 4.5-289.74 | 4.92-251.15 | 5.55-262.65 | 5.15-222.60 | 5.00-163.31 | 10.24-229.71 |
| Mamax Gear unit(Nm) | 1550 | 3000 | 4300 | 6000 | 8000 | 13000 | 18000 |
| Gear unit size | RX57 | RX67 | RX77 | RX87 | RX97 | RX107 | |
| Motor Power(KW) | 0.12-7.5 | 0.12-7.5 | 0.12-15 | 0.25-30 | 0.25-37 | 2.2-45 | |
| gear ratio range | 1.3-5.5 | 1.4-6.07 | 1.42-8.00 | 1.39-8.65 | 1.42-8.23 | 1.44-6.63 | |
| Mamax Gear unit(Nm) | 69 | 134 | 215 | 405 | 595 | 830 | |
▶▶▶Features
RX series (single-stage)
•Highly efficient helical gear units in 6 sizes
•High output speed, up to 830 Nm
•Gear unit ratios up to i = 8.65
•Available in foot or flange-mounted design
R series (multi-stage)
•Optimum ratio between performance and space requirements thanks to 15 sizes
•Finely stepped gear unit ratios up to i = 289.74; or i = 27,001 for double gear units
•Available in foot or flange-mounted design
•Also available with reduced backlash
| Catalog designation | R37DRN90S4 |
| Product | Helical gearmotors R..DRN.. (IE3) |
| Rated motor speed [1/min] | 1455 |
| Output speed [1/min] | 60 |
| Overall gear ratio | 24.42 |
| Output torque [Nm] | 176 |
| Service factor SEW-FB | 1.15 |
| Mounting position | M1 |
| Base / top coat | 7031 Blue gray (51370310) |
| Position of connector/terminal box [°] | 0 |
| Cable entry/connector position | X |
| Output shaft [mm] | 25x50 |
| Design type | Foot-mounted design |
| Permitted output overhung load with n=1400 [N] | 3800 |
| Lubricant quantity 1st gear unit [Liter] | 0.3 |
| Motor power [kW] | 1.1 |
| Duration factor | S1-100% |
| Efficiency class | GR3 |
| Efficiency (50/75/100% Pn) [%] | 83.5 / 85 / 84.5 |
| CE mark | No |
| Motor voltage [V] | 230/400 |
| Wiring diagram | R13 |
| Frequency [Hz] | 50 |
| Rated current [A] | 4.45 / 2.55 |
| Cos Phi | 0.73 |
| Thermal class | 155(F) |
| Motor protection type | IP55 |
| Design requirement | IEC60034 (without CE) |
| Mass moments of inertia (referring to the input side) [10⁻⁴ kgm²] | 54.00 |
| Weight [kg] | 29.00 |
▶▶▶ SEW reducer R series helical gear reducer
SIZE:R37,R47,R57,R67,R77,R87,R97,R107,R137,R147,R167
RS37,RS47,RS57,RS67,RS77,RS87,RS97,RS107,RS137,RS147,RS167
RF37,RF47,RF57,RF67,RF77,RF87,RF97,RF107,RF137,RF147,RF167
RX37,RX47,RX57,RX67,RX77,RX87,RX97,RX107
RXF37,RXF47,RXF57,RXF67,RXF77,RXF87,RXF97,RXF107
▶▶▶FAQ
Q: Can you print other colors?
A:Yes. Customized color can be printed on the gear motor according to your requirements.
Q: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.
