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SR37555 DC Gearmotors - Round

SR37555 Series

The SR37-DC555 pairs a DC555 motor with a 37 mm round spur gearbox. Gearbox length changes across the listed ratios, while the output shaft diameter is 6 mm.

Product Highlights

  • Motor voltages: 12 V, 24 V
  • Listed gear ratios: 9.5–1154:1
  • Gearbox diameter: 37 mm
  • Output shaft diameter: 6 mm

Customization Available

  • Custom output shaft dimensions and features
  • Motor voltage and winding options
  • Gear ratios
  • Mounting and mechanical integration

Product Specifications

ModelSR37555-123000-9.5KSR37555-123000-10KSR37555-123000-19KSR37555-123000-28.5KSR37555-123000-43KSR37555-123000-57KSR37555-123000-85.5KSR37555-123000-128KSR37555-123000-171KSR37555-123000-256.5KSR37555-123000-385KSR37555-123000-513KSR37555-123000-769.5KSR37555-123000-1154KSR37555-124500-9.5KSR37555-124500-10KSR37555-124500-19KSR37555-124500-28.5KSR37555-124500-43KSR37555-124500-57KSR37555-124500-85.5KSR37555-124500-128KSR37555-124500-171KSR37555-124500-256.5KSR37555-124500-385KSR37555-124500-513KSR37555-124500-769.5KSR37555-124500-1154KSR37555-126000-9.5KSR37555-126000-10KSR37555-126000-19KSR37555-126000-28.5KSR37555-126000-43KSR37555-126000-57KSR37555-126000-85.5KSR37555-126000-128KSR37555-126000-171KSR37555-126000-256.5KSR37555-126000-385KSR37555-126000-513KSR37555-126000-769.5KSR37555-126000-1154KSR37555-243000-9.5KSR37555-243000-10KSR37555-243000-19KSR37555-243000-28.5KSR37555-243000-43KSR37555-243000-57KSR37555-243000-85.5KSR37555-243000-128KSR37555-243000-171KSR37555-243000-256.5KSR37555-243000-385KSR37555-243000-513KSR37555-243000-769.5KSR37555-243000-1154KSR37555-244500-9.5KSR37555-244500-10KSR37555-244500-19KSR37555-244500-28.5KSR37555-244500-43KSR37555-244500-57KSR37555-244500-85.5KSR37555-244500-128KSR37555-244500-171KSR37555-244500-256.5KSR37555-244500-385KSR37555-244500-513KSR37555-244500-769.5KSR37555-244500-1154KSR37555-246000-9.5KSR37555-246000-10KSR37555-246000-19KSR37555-246000-28.5KSR37555-246000-43KSR37555-246000-57KSR37555-246000-85.5KSR37555-246000-128KSR37555-246000-171KSR37555-246000-256.5KSR37555-246000-385KSR37555-246000-513KSR37555-246000-769.5KSR37555-246000-1154K
Gearbox TypeSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - RoundSpur Gearbox - Round
Series ModelSR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555SR37555
Combination Display ModelSR37555-123000-9.5KSR37555-123000-10KSR37555-123000-19KSR37555-123000-28.5KSR37555-123000-43KSR37555-123000-57KSR37555-123000-85.5KSR37555-123000-128KSR37555-123000-171KSR37555-123000-256.5KSR37555-123000-385KSR37555-123000-513KSR37555-123000-769.5KSR37555-123000-1154KSR37555-124500-9.5KSR37555-124500-10KSR37555-124500-19KSR37555-124500-28.5KSR37555-124500-43KSR37555-124500-57KSR37555-124500-85.5KSR37555-124500-128KSR37555-124500-171KSR37555-124500-256.5KSR37555-124500-385KSR37555-124500-513KSR37555-124500-769.5KSR37555-124500-1154KSR37555-126000-9.5KSR37555-126000-10KSR37555-126000-19KSR37555-126000-28.5KSR37555-126000-43KSR37555-126000-57KSR37555-126000-85.5KSR37555-126000-128KSR37555-126000-171KSR37555-126000-256.5KSR37555-126000-385KSR37555-126000-513KSR37555-126000-769.5KSR37555-126000-1154KSR37555-243000-9.5KSR37555-243000-10KSR37555-243000-19KSR37555-243000-28.5KSR37555-243000-43KSR37555-243000-57KSR37555-243000-85.5KSR37555-243000-128KSR37555-243000-171KSR37555-243000-256.5KSR37555-243000-385KSR37555-243000-513KSR37555-243000-769.5KSR37555-243000-1154KSR37555-244500-9.5KSR37555-244500-10KSR37555-244500-19KSR37555-244500-28.5KSR37555-244500-43KSR37555-244500-57KSR37555-244500-85.5KSR37555-244500-128KSR37555-244500-171KSR37555-244500-256.5KSR37555-244500-385KSR37555-244500-513KSR37555-244500-769.5KSR37555-244500-1154KSR37555-246000-9.5KSR37555-246000-10KSR37555-246000-19KSR37555-246000-28.5KSR37555-246000-43KSR37555-246000-57KSR37555-246000-85.5KSR37555-246000-128KSR37555-246000-171KSR37555-246000-256.5KSR37555-246000-385KSR37555-246000-513KSR37555-246000-769.5KSR37555-246000-1154K
Theoretical Assembly Net Weight (kg)0.3380.3380.3380.3380.3380.3440.3440.3440.3520.3520.3520.3560.3560.3560.3380.3380.3380.3380.3380.3440.3440.3440.3520.3520.3520.3560.3560.3560.3380.3380.3380.3380.3380.3440.3440.3440.3520.3520.3520.3560.3560.3560.3380.3380.3380.3380.3380.3440.3440.3440.3520.3520.3520.3560.3560.3560.3380.3380.3380.3380.3380.3440.3440.3440.3520.3520.3520.3560.3560.3560.3380.3380.3380.3380.3380.3440.3440.3440.3520.3520.3520.3560.3560.356
Gearbox Weight (kg)0.1080.1080.1080.1080.1080.1140.1140.1140.1220.1220.1220.1260.1260.1260.1080.1080.1080.1080.1080.1140.1140.1140.1220.1220.1220.1260.1260.1260.1080.1080.1080.1080.1080.1140.1140.1140.1220.1220.1220.1260.1260.1260.1080.1080.1080.1080.1080.1140.1140.1140.1220.1220.1220.1260.1260.1260.1080.1080.1080.1080.1080.1140.1140.1140.1220.1220.1220.1260.1260.1260.1080.1080.1080.1080.1080.1140.1140.1140.1220.1220.1220.1260.1260.126
Measured Assembly Net Weight (kg)————————————————————————————————————————————————————————————————————————————————————
Rated Voltage (V)121212121212121212121212121212121212121212121212121212121212121212121212121212121212242424242424242424242424242424242424242424242424242424242424242424242424242424242424
No Load Speed (rpm)316300158105705335231812864347445023715810579533526181296463260031621114010570473523161285316300158105705335231812864347445023715810579533526181296463260031621114010570473523161285
Motor Rated-Point Output Speed (Reference) (rpm)273.68260.00136.8491.2360.4745.6130.4120.3115.2010.146.755.073.382.25413.58392.90206.79137.8691.3768.9345.9530.7022.9815.3210.217.665.113.40552.00524.40276.00184.00121.9592.0061.3340.9730.6720.4413.6210.226.814.54280.32266.30140.1693.4461.9346.7231.1520.8015.5710.386.925.193.462.31418.95398.00209.47139.6592.5669.8246.5531.0923.2715.5210.347.765.173.45557.89530.00278.95185.96123.2692.9861.9941.4130.9920.6613.7710.336.894.59
No Load Current (mA)180180180180180180180180180180180180180180280280280280280280280280280280280280280280420420420420420420420420420420420420420420100100100100100100100100100100100100100100140140140140140140140140140140140140140140250250250250250250250250250250250250250250
Rated Current (mA)60060060060060060060060060060060060060060084084084084084084084084084084084084084084013401340134013401340134013401340134013401340134013401340240240240240240240240240240240240240240240440440440440440440440440440440440440440440730730730730730730730730730730730730730730
Stall Current (mA)310031003100310031003100310031003100310031003100310031005920592059205920592059205920592059205920592059205920592093109310931093109310931093109310931093109310931093109310193019301930193019301930193019301930193019301930193019303340334033403340334033403340334033403340334033403340334054505450545054505450545054505450545054505450545054505450
Motor Rated-Point Output Torque (Reference) (mN·m)121.74128.14243.47365.21551.02590.34885.511325.671590.912386.373581.874502.586753.8610128.60124.46131.01248.91373.37563.33603.53905.291355.291626.462439.693661.924603.196904.7910354.94146.22153.92292.44438.66661.84709.061063.601592.291910.872866.304302.255408.128112.1812165.64107.45113.11214.91322.36486.37521.08781.621170.151404.272106.403161.653974.345961.518940.33129.22136.02258.43387.65584.88626.62939.921407.141688.682533.013801.994779.277168.9110751.03165.94174.68331.88497.83751.11804.711207.061807.062168.623252.924882.556137.599206.3813806.59
Theoretical Stall Output Torque (Reference) (mN·m)1122.151181.212244.303366.455079.215441.668162.4912219.8714664.8221997.2233017.2741504.1962256.2993364.211024.901078.842049.793074.694639.014970.057455.0811160.8113393.8620090.8030155.7837907.1656860.7585272.651171.121232.752342.233513.355300.855679.128518.6712753.1015304.7322957.1034458.0343315.2964972.9397438.29999.731052.351999.472999.204525.114848.037272.0410886.7913065.0219597.5329415.3936976.4655464.7083179.021165.001226.312329.993494.995273.145649.438474.1512686.4515224.7422837.1234277.9343088.9064633.3596929.031404.391478.302808.784213.166356.706810.3210215.4815293.3518353.2427529.8641321.6251943.1377914.69116846.73
Motor Rated-Point Output Power (Reference) (W)3.4893.4893.4893.4893.4892.8202.8202.8202.5332.5332.5332.3902.3902.3905.3905.3905.3905.3905.3904.3564.3564.3563.9133.9133.9133.6923.6923.6928.4528.4528.4528.4528.4526.8316.8316.8316.1376.1376.1375.7895.7895.7893.1543.1543.1543.1543.1542.5492.5492.5492.2902.2902.2902.1602.1602.1605.6695.6695.6695.6695.6694.5824.5824.5824.1164.1164.1163.8833.8833.8839.6959.6959.6959.6959.6957.8367.8367.8367.0397.0397.0396.6406.6406.640
Estimated Combination Efficiency (%)52.5652.5652.5652.5652.5642.4842.4842.4838.1638.1638.1636.0036.0036.0052.5652.5652.5652.5652.5642.4842.4842.4838.1638.1638.1636.0036.0036.0052.5652.5652.5652.5652.5642.4842.4842.4838.1638.1638.1636.0036.0036.0052.5652.5652.5652.5652.5642.4842.4842.4838.1638.1638.1636.0036.0036.0052.5652.5652.5652.5652.5642.4842.4842.4838.1638.1638.1636.0036.0036.0052.5652.5652.5652.5652.5642.4842.4842.4838.1638.1638.1636.0036.0036.00
Measured Assembly Efficiency (%)————————————————————————————————————————————————————————————————————————————————————
Direction Of RotationCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCWCW/CCW
Motor Diameter (mm)363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636
Gearbox Diameter (mm)373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737
Gearbox Length (mm)30.530.530.530.530.533333335.535.535.538383830.530.530.530.530.533333335.535.535.538383830.530.530.530.530.533333335.535.535.538383830.530.530.530.530.533333335.535.535.538383830.530.530.530.530.533333335.535.535.538383830.530.530.530.530.533333335.535.535.5383838
Component Body Length Sum (Reference) (mm)87.587.587.587.587.590909092.592.592.595959587.587.587.587.587.590909092.592.592.595959587.587.587.587.587.590909092.592.592.595959587.587.587.587.587.590909092.592.592.595959587.587.587.587.587.590909092.592.592.595959587.587.587.587.587.590909092.592.592.5959595
Assembly Axial Length (Drawing / Measured) (mm)————————————————————————————————————————————————————————————————————————————————————
Output Shaft Diameter (mm)666666666666666666666666666666666666666666666666666666666666666666666666666666666666
Gear Ratio (:1)9.5101928.5435785.5128171256.5385513769.511549.5101928.5435785.5128171256.5385513769.511549.5101928.5435785.5128171256.5385513769.511549.5101928.5435785.5128171256.5385513769.511549.5101928.5435785.5128171256.5385513769.511549.5101928.5435785.5128171256.5385513769.51154
Number Of Gear Stages334445556667773344455566677733444555666777334445556667773344455566677733444555666777
Max Continuous Torque (mN·m)196.13196.13196.13196.13196.13392.27392.27392.27588.40588.40588.40588.40588.40588.40196.13196.13196.13196.13196.13392.27392.27392.27588.40588.40588.40588.40588.40588.40196.13196.13196.13196.13196.13392.27392.27392.27588.40588.40588.40588.40588.40588.40196.13196.13196.13196.13196.13392.27392.27392.27588.40588.40588.40588.40588.40588.40196.13196.13196.13196.13196.13392.27392.27392.27588.40588.40588.40588.40588.40588.40196.13196.13196.13196.13196.13392.27392.27392.27588.40588.40588.40588.40588.40588.40
Motor Torque at Gearbox Continuous Limit (Reference) (mN·m)28.2826.8714.149.436.2511.667.785.196.494.332.882.291.531.0228.2826.8714.149.436.2511.667.785.196.494.332.882.291.531.0228.2826.8714.149.436.2511.667.785.196.494.332.882.291.531.0228.2826.8714.149.436.2511.667.785.196.494.332.882.291.531.0228.2826.8714.149.436.2511.667.785.196.494.332.882.291.531.0228.2826.8714.149.436.2511.667.785.196.494.332.882.291.531.02
Gearbox Allowable Intermittent Torque (mN·m)————————————————————————————————————————————————————————————————————————————————————
Gearbox Breaking Torque (Destructive Limit) (mN·m)588.40588.40588.40588.40588.401176.801176.801176.801765.201765.201765.201765.201765.201765.20588.40588.40588.40588.40588.401176.801176.801176.801765.201765.201765.201765.201765.201765.20588.40588.40588.40588.40588.401176.801176.801176.801765.201765.201765.201765.201765.201765.20588.40588.40588.40588.40588.401176.801176.801176.801765.201765.201765.201765.201765.201765.20588.40588.40588.40588.40588.401176.801176.801176.801765.201765.201765.201765.201765.201765.20588.40588.40588.40588.40588.401176.801176.801176.801765.201765.201765.201765.201765.201765.20
Backlash (°)222222222222222222222222222222222222222222222222222222222222222222222222222222222222
Component Temperature Intersection (Reference) (°C)-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65
Working Lifespan (hours)600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600600
Noise Level @ 30cm (dB)————————————————————————————————————————————————————————————————————————————————————