LRPX22 Brushless DC Planetary Gear Motor
Low Noise RapidPower™ Xtreme Series

LRPX22 Brushless DC Planetary Gear Motor

Summary Details

Size: 22mm (0.87 in)
Peak Torque: to 3.0 Nm (424.8 oz.in)
Continuous Stall Torque: to 2.5 Nm (354 oz.in)
Speed: to 2286 RPM
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Complete Motion Solution

For a complete motion solution, the LRPX22 is compatible with ElectroCraft's Universal and PRO Series drives.

Exquisitely efficient small form factor BLDC motor that has peak operating efficiency at traditional RPM ranges, allowing custom integration with a planetary gearbox. High torque from a small form factor, with low power consumption and peak performance at lower RPM for quiet operation.

Traditional BLDC motors have peak performance at very high RPMs. These speeds are simply too high to make efficient use of a gearbox, and even when a traditional BLDC motor is paired with a custom high-rpm gearbox there are typically noise and heat issues that make it prohibitive for discerning applications.

The LRPX carefully integrates the unique RPX series motor with a custom planetary gearbox. The result is a small form factor BLDC motor that can produce high torque at low RPM and offer strong, smooth operation with low noise!

RPX Model Number Legend

Additional Product Details

Outline Drawing

LRPX22 BLDC Gearmotor Technical Drawings

Specifications & Winding Data

Winding Specifications

Motor Only
Part Number Voltage Resistance Inductance Number
of Poles		 Torque
Constant		 Voltage
Constant		 Continuous
Running		 Peak
Units Volts Ohms mH N-m/A oz-in/A V-sec/rad V/kRPM Torque
(N-m)		 RPM Current
(A)		 Torque
(N-m)		 RPM Current
(A)
LRPX22-42V12 12 0.56 0.22 8 0.008 1.19 0.008 0.80 0.04 9000 5.0 0.09 1700 10.8
LRPX22-42V24 24 2.39 0.90 8 0.017 2.35 0.015 1.60 0.04 9000 2.5 0.09 1700 5.5
LRPX22-42V48 48 9.72 3.60 8 0.032 4.53 0.032 3.30 0.04 9000 1.3 0.09 1700 2.8

One Stage Gearbox
Part Number Voltage Resistance Inductance Number
of Poles		 Torque
Constant		 Voltage
Constant		 Continuous
Running		 Peak
Units Volts Ohms mH N-m/A oz-in/A V-sec/rad V/kRPM Torque
(N-m)		 RPM Current
(A)		 Torque
(N-m)		 RPM Current
(A)
LRPX22-42V12-___-_003 12 0.6 0.22 8 0.029 4.16 0.033 3.42 0.098 2408 3.87 0.28 249 10.34
LRPX22-42V24-___-_003 24 2.4 0.9 8 0.059 8.33 0.065 6.84 0.098 2408 1.93 0.28 249 5.17
LRPX22-42V48-___-_003 48 9.7 3.6 8 0.118 16.66 0.131 13.69 0.098 2408 0.97 0.28 249 2.585
LRPX22-42V12-___-_004 12 0.6 0.22 8 0.036 5.16 0.040 4.24 0.121 1945 3.87 0.35 201 10.34
LRPX22-42V24-___-_004 24 2.4 0.9 8 0.073 10.31 0.081 8.47 0.121 1945 1.93 0.35 201 5.17
LRPX22-42V48-___-_004 48 9.7 3.6 8 0.146 20.62 0.162 16.94 0.121 1945 0.97 0.35 201 2.585
LRPX22-42V12-___-_008 12 0.6 0.22 8 0.064 9.12 0.072 7.50 0.214 1099 3.87 0.62 114 10.34
LRPX22-42V24-___-_008 24 2.4 0.9 8 0.129 18.25 0.143 14.99 0.214 1099 1.93 0.62 114 5.17
LRPX22-42V48-___-_008 48 9.7 3.6 8 0.258 36.49 0.286 29.98 0.214 1099 0.97 0.62 114 2.585

Two Stage Gearbox
Part Number Voltage Resistance Inductance Number
of Poles		 Torque
Constant		 Voltage
Constant		 Continuous
Running		 Peak
Units Volts Ohms mH N-m/A oz-in/A V-sec/rad V/kRPM Torque
(N-m)		 RPM Current
(A)		 Torque
(N-m)		 RPM Current
(A)
LRPX22-42V12-___-_012 12 0.6 0.22 8 0.093 13.1 0.127 13.3 0.31 688 3.87 0.893 71 10.34
LRPX22-42V24-___-_012 24 2.4 0.9 8 0.185 26.2 0.254 26.6 0.31 688 1.93 0.893 71 5.17
LRPX22-42V48-___-_012 48 9.7 3.6 8 0.371 52.5 0.508 53.2 0.31 688 0.97 0.893 71 2.585
LRPX22-42V12-___-_015 12 0.6 0.22 8 0.115 16.2 0.157 16.5 0.38 556 3.87 1.106 57 10.34
LRPX22-42V24-___-_015 24 2.4 0.9 8 0.229 32.5 0.315 33.0 0.38 556 1.93 1.106 57 5.17
LRPX22-42V48-___-_015 48 9.7 3.6 8 0.459 65.0 0.630 65.9 0.38 556 0.97 1.106 57 2.585
LRPX22-42V12-___-_019 12 0.6 0.22 8 0.142 20.1 0.195 20.4 0.47 449 3.87 1.369 46 10.34
LRPX22-42V24-___-_019 24 2.4 0.9 8 0.284 40.2 0.390 40.8 0.47 449 1.93 1.369 46 5.17
LRPX22-42V48-___-_019 48 9.7 3.6 8 0.568 80.4 0.779 81.6 0.47 449 0.97 1.369 46 2.585
LRPX22-42V12-___-_027 12 0.6 0.22 8 0.203 28.7 0.278 29.1 0.67 314 3.87 1.50 142 9.5
LRPX22-42V24-___-_027 24 2.4 0.9 8 0.406 57.5 0.557 58.3 0.67 314 1.93 1.50 142 4.8
LRPX22-42V48-___-_027 48 9.7 3.6 8 0.812 114.9 1.113 116.6 0.67 314 0.97 1.50 142 2.4
LRPX22-42V12-___-_033 12 0.6 0.22 8 0.251 35.6 0.345 36.1 0.83 254 3.87 1.50 171 8.1
LRPX22-42V24-___-_033 24 2.4 0.9 8 0.502 71.1 0.689 72.2 0.83 254 1.93 1.50 171 4.1
LRPX22-42V48-___-_033 48 9.7 3.6 8 1.005 142.3 1.379 144.3 0.83 254 0.97 1.50 171 2.0

Three Stage Gearbox
Part Number Voltage Resistance Inductance Number
of Poles		 Torque
Constant		 Voltage
Constant		 Continuous
Running		 Peak
Units Volts Ohms mH N-m/A oz-in/A V-sec/rad V/kRPM Torque
(N-m)		 RPM Current
(A)		 Torque
(N-m)		 RPM Current
(A)
LRPX22-42V12-___-_053 12 0.6 0.22 8 0.361 51.2 0.496 51.9 1.20 159 3.87 2.0 118 6.1
LRPX22-42V24-___-_053 24 2.4 0.9 8 0.723 102.3 0.991 103.8 1.20 159 1.93 2.0 118 3.0
LRPX22-42V48-___-_053 48 9.7 3.6 8 1.445 204.6 1.982 207.6 1.20 159 0.97 2.0 118 1.5
LRPX22-42V12-___-_066 12 0.6 0.22 8 0.447 63.3 0.614 64.3 1.49 128 3.87 2.0 116 5.0
LRPX22-42V24-___-_066 24 2.4 0.9 8 0.895 126.7 1.227 128.5 1.49 128 1.93 2.0 116 2.5
LRPX22-42V48-___-_066 48 9.7 3.6 8 1.789 253.4 2.454 257.0 1.49 128 0.97 2.0 116 1.3
LRPX22-42V12-___-_081 12 0.6 0.22 8 0.554 78.4 0.760 79.6 1.60 120 3.42 2.0 108 4.1
LRPX22-42V24-___-_081 24 2.4 0.9 8 1.108 156.8 1.519 159.1 1.60 120 1.71 2.0 108 2.1
LRPX22-42V48-___-_081 48 9.7 3.6 8 2.215 313.7 3.039 318.2 1.60 120 0.86 2.0 108 1.0
LRPX22-42V12-___-_094 12 0.6 0.22 8 0.639 90.5 0.877 91.8 1.60 109 3.04 2.0 100 3.7
LRPX22-42V24-___-_094 24 2.4 0.9 8 1.279 181.0 1.754 183.6 1.60 109 1.52 2.0 100 1.8
LRPX22-42V48-___-_094 48 9.7 3.6 8 2.557 362.1 3.508 367.3 1.60 109 0.76 2.0 100 0.9
LRPX22-42V12-___-_116 12 0.6 0.22 8 0.792 112.1 1.086 113.7 1.60 93 2.56 2.0 88 3.1
LRPX22-42V24-___-_116 24 2.4 0.9 8 1.583 224.2 2.172 227.4 1.60 93 1.28 2.0 88 1.5
LRPX22-42V48-___-_116 48 9.7 3.6 8 3.166 448.4 4.343 454.8 1.60 93 0.64 2.0 88 0.8
LRPX22-42V12-___-_144 12 0.6 0.22 8 0.980 138.8 1.344 140.8 1.60 79 2.17 2.0 73 2.6
LRPX22-42V24-___-_144 24 2.4 0.9 8 1.960 277.6 2.689 281.6 1.60 79 1.08 2.0 73 1.3
LRPX22-42V48-___-_144 48 9.7 3.6 8 3.921 555.1 5.378 563.1 1.60 79 0.54 2.0 73 0.6

Four Stage Gearbox
Part Number Voltage Resistance Inductance Number
of Poles		 Torque
Constant		 Voltage
Constant		 Continuous
Running		 Peak
Units Volts Ohms mH N-m/A oz-in/A V-sec/rad V/kRPM Torque
(N-m)		 RPM Current
(A)		 Torque
(N-m)		 RPM Current
(A)
LRPX22-42V12-___-_186 12 0.6 0.22 8 1.14 161.2 1.73 181.7 2.5 57 2.73 3.0 45 3.2
LRPX22-42V24-___-_186 24 2.4 0.9 8 2.28 322.3 3.47 363.3 2.5 57 1.37 3.0 45 1.6
LRPX22-42V48-___-_186 48 9.7 3.6 8 4.55 644.7 6.94 726.6 2.5 57 0.68 3.0 45 0.8
LRPX22-42V12-___-_230 12 0.6 0.22 8 1.41 199.5 2.15 224.9 2.5 46 2.31 3.0 37 2.7
LRPX22-42V24-___-_230 24 2.4 0.9 8 2.82 399.0 4.29 449.7 2.5 46 1.15 3.0 37 1.3
LRPX22-42V48-___-_230 48 9.7 3.6 8 5.64 798.0 8.59 899.5 2.5 46 0.58 3.0 37 0.7
LRPX22-42V12-___-_285 12 0.6 0.22 8 1.74 247.0 2.66 278.4 2.5 37 1.97 3.0 30 2.3
LRPX22-42V24-___-_285 24 2.4 0.9 8 3.49 494.1 5.32 556.9 2.5 37 0.98 3.0 30 1.1
LRPX22-42V48-___-_285 48 9.7 3.6 8 6.98 988.2 10.64 1113.8 2.5 37 0.49 3.0 30 0.6
LRPX22-42V12-___-_329 12 0.6 0.22 8 2.01 285.1 3.07 321.4 2.5 32 1.78 3.0 26 2.0
LRPX22-42V24-___-_329 24 2.4 0.9 8 4.03 570.2 6.14 642.7 2.5 32 0.89 3.0 26 1.0
LRPX22-42V48-___-_329 48 9.7 3.6 8 8.05 1140.5 12.28 1285.4 2.5 32 0.44 3.0 26 0.5
LRPX22-42V12-___-_353 12 0.6 0.22 8 2.16 305.9 3.29 344.7 2.5 30 1.69 3.0 24 1.9
LRPX22-42V24-___-_353 24 2.4 0.9 8 4.32 611.7 6.58 689.5 2.5 30 0.85 3.0 24 1.0
LRPX22-42V48-___-_353 48 9.7 3.6 8 8.64 1223.4 13.17 1378.9 2.5 30 0.42 3.0 24 0.5
LRPX22-42V12-___-_407 12 0.6 0.22 8 2.49 353.0 3.80 397.9 2.5 26 1.54 3.0 21 1.7
LRPX22-42V24-___-_407 24 2.4 0.9 8 4.99 706.1 7.60 795.8 2.5 26 0.77 3.0 21 0.9
LRPX22-42V48-___-_407 48 9.7 3.6 8 9.97 1412.2 15.20 1591.6 2.5 26 0.38 3.0 21 0.4
LRPX22-42V12-___-_504 12 0.6 0.22 8 3.09 437.1 4.70 492.6 2.5 21 1.35 3.0 17 1.5
LRPX22-42V24-___-_504 24 2.4 0.9 8 6.17 874.2 9.41 985.3 2.5 21 0.67 3.0 17 0.8
LRPX22-42V48-___-_504 48 9.7 3.6 8 12.35 1748.4 18.82 1970.6 2.5 21 0.34 3.0 17 0.4
LRPX22-42V12-___-_624 12 0.6 0.22 8 3.82 541.1 5.82 609.9 2.5 17 1.19 3.0 14 1.3
LRPX22-42V24-___-_624 24 2.4 0.9 8 7.64 1082.2 11.65 1219.7 2.5 17 0.59 3.0 14 0.7
LRPX22-42V48-___-_624 48 9.7 3.6 8 15.29 2164.4 23.30 2439.5 2.5 17 0.30 3.0 14 0.3

General Specifications

Part Number Ratio
(approx.)		 Ratio
(Exact)		 Backlash (avg)
(Degrees)		 Length (Motor +
Gearhead) (mm)		 Weight
(g)		 Temperature
Range (°C)

One Stage Gearbox
LRPX22-42V__-___-_003 3.50 7 / 2 0.9 77.2 136.4 -40 °C to +100 °C 
LRPX22-42V__-___-_004 4.33 13 / 3 0.9 77.2 136.4 -40 °C to +100 °C 
LRPX22-42V__-___-_008 7.67 23 / 3 0.7 77.2 136.4 -40 °C to +100 °C 

Two Stage Gearbox
LRPX22-42V__-___-_012 12.25 49 / 4 1.1 82.9 148.1 -40 °C to +100 °C 
LRPX22-42V__-___-_015 15.17 91 / 6 1.1 82.9 148.1 -40 °C to +100 °C 
LRPX22-42V__-___-_019 18.78 169 / 9 1.2 82.9 148.1 -40 °C to +100 °C 
LRPX22-42V__-___-_027 26.83 161 / 6 1.1 82.9 148.1 -40 °C to +100 °C 
LRPX22-42V__-___-_033 33.22 299 / 9 1.1 82.9 148.1 -40 °C to +100 °C 

Three Stage Gearbox
LRPX22-42V__-___-_053 53.08 637 / 12 1.2 88.2 159.8 -40 °C to +100 °C 
LRPX22-42V__-___-_066 65.72 1183 / 18 1.2 88.2 159.8 -40 °C to +100 °C 
LRPX22-42V__-___-_081 81.37 2197 / 27 1.2 88.2 159.8 -40 °C to +100 °C 
LRPX22-42V__-___-_094 93.92 1127 / 12 1.2 88.2 159.8 -40 °C to +100 °C 
LRPX22-42V__-___-_116 116.28 2093 / 18 1.2 88.2 159.8 -40 °C to +100 °C 
LRPX22-42V__-___-_144 143.96 3887 / 27 1.2 88.2 159.8 -40 °C to +100 °C 

Four Stage Gearbox
LRPX22-42V__-___-_186 185.79 4459 / 24 1.2 93.6 171.5 -40 °C to +100 °C 
LRPX22-42V__-___-_230 230.03 8281 / 36 1.2 93.6 171.5 -40 °C to +100 °C 
LRPX22-42V__-___-_285 284.80 15379 / 54 1.2 93.6 171.5 -40 °C to +100 °C 
LRPX22-42V__-___-_329 328.71 7889 / 24 1.2 93.6 171.5 -40 °C to +100 °C 
LRPX22-42V__-___-_353 352.60 28561 / 81 1.2 93.6 171.5 -40 °C to +100 °C 
LRPX22-42V__-___-_407 406.97 14651 / 36 1.2 93.6 171.5 -40 °C to +100 °C 
LRPX22-42V__-___-_504 503.87 27209 / 54 1.2 93.6 171.5 -40 °C to +100 °C 
LRPX22-42V__-___-_624 623.84 50531 / 81 1.2 93.6 171.5 -40 °C to +100 °C 

Speed / Torque Curves

LRPX22 Speed Torque Performance - 1 Stage LRPX22 Speed Torque Performance - 2 Stage LRPX22 Speed Torque Performance - 3 Stage LRPX22 Speed Torque Performance - 4 Stage

Connection

hall diagram

CAD

Drive Compatibility

Motor P/N Cont Stall
Current
(ARMS)		 Peak
Current
(ARMS)		 Voltage Drive Model
Imperial Metric PRO (-CAN) PRO (-CAT) CPP-Universal CPP-EZ
LRPX22-042V12 (3:1 to 66:1) 3.5 5.0 to 10.8 12 PRO-A08V48B PRO-A08V48B CPP-A06V48A CPP-A06V48A
LRPX22-042V12 (81:1 ) 3.2 4.0 12 PRO-A08V48B PRO-A08V48B CPP-B06V48A CPP-A06V48A
LRPX22-042V12 (94:1 to 624:1) 0.7 to 2.8 0.9 to 3.5 12 PRO-A08V48B PRO-A04V36A CPP-B06V48A CPP-A06V48A
LRPX22-042V24 (3:1 to 19:1) 1.8 5.5 24 PRO-A08V48B PRO-A04V36A CPP-A06V48A CPP-A06V48A
LRPX22-042V24 (27:1 to 624:1) 0.4 to 1.8 0.4 to 4.2 24 PRO-A08V48B PRO-A04V36A CPP-B06V48A CPP-A06V48A
LRPX22-042V48 (3:1 to 624:1) 0.2 to 0.9 0.2 to 2.8 48 PRO-A08V48B PRO-A08V48B CPP-B06V48A CPP-A06V48A

ElectroCraft Rapid Delivery Program

Some versions of this product are available via ElectroCraft's Rapid Delivery Program. Lead times for these products are given in working days and stated below. Please note, these lead times may be exceeded during holiday periods or due to unforeseen circumstances. Always contact your local ElectroCraft representative for confirmation of availability.

Rapid delivery products are stocked in locations all over the World. If the product you require is not stocked in your region, you may request accelerated delivery from other areas. Please consult your local representative for more information.

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The Americas - View Cart

Part Number Description Add to Cart
LRPX22-042V24-110-S008 22mm Brushless DC Gear Motor, 24VDC, single-stage planetary gear box, 8:1 ratio, 0.63 Nm peak torque, 0.21 Nm continuous torque at 1043RPM, hall sensors + 2048 line differential encoder Buy Now
LRPX22-042V24-110-S019 22mm Brushless DC Gear Motor, 24VDC, 2-stage planetary gear box, 19:1 ratio, 1.38 Nm peak torque, 0.45 Nm continuous torque at 426RPM, hall sensors + 2048 line differential encoder Contact Sales
LRPX22-042V24-110-S033 22mm Brushless DC Gear Motor, 24VDC, 2-stage planetary gear box, 33:1 ratio, 1.5 Nm peak torque, 0.8 Nm continuous torque at 240RPM, hall sensors + 2048 line differential encoder Buy Now
LRPX22-042V24-110-S066 22mm Brushless DC Gear Motor, 24VDC, 3-stage planetary gear box, 66:1 ratio, 2.0 Nm peak torque, 1.43 Nm continuous torque at 122RPM, hall sensors + 2048 line differential encoder Contact Sales
LRPX22-042V24-110-S081 22mm Brushless DC Gear Motor, 24VDC, 3-stage planetary gear box, 81:1 ratio, 2.0 Nm peak torque, 1.60 Nm continuous torque at 98RPM, hall sensors + 2048 line differential encoder Buy Now

Europe, the Middle East and Africa

Part Number Description Typical Lead Time
LRPX22-042V24-110-S008 22mm Brushless DC Gear Motor, 24VDC, single-stage planetary gear box, 8:1 ratio, 0.63 Nm peak torque, 0.21 Nm continuous torque at 1043RPM, hall sensors + 2048 line differential encoder 2 days
LRPX22-042V24-110-S019 22mm Brushless DC Gear Motor, 24VDC, 2-stage planetary gear box, 19:1 ratio, 1.38 Nm peak torque, 0.45 Nm continuous torque at 426RPM, hall sensors + 2048 line differential encoder 2 days
LRPX22-042V24-110-S033 22mm Brushless DC Gear Motor, 24VDC, 2-stage planetary gear box, 33:1 ratio, 1.5 Nm peak torque, 0.8 Nm continuous torque at 240RPM, hall sensors + 2048 line differential encoder 2 days
LRPX22-042V24-110-S066 22mm Brushless DC Gear Motor, 24VDC, 3-stage planetary gear box, 66:1 ratio, 2.0 Nm peak torque, 1.43 Nm continuous torque at 122RPM, hall sensors + 2048 line differential encoder 2 days
LRPX22-042V24-110-S081 22mm Brushless DC Gear Motor, 24VDC, 3-stage planetary gear box, 81:1 ratio, 2.0 Nm peak torque, 1.60 Nm continuous torque at 98RPM, hall sensors + 2048 line differential encoder 2 days

Asia

Part Number Description Typical Lead Time
LRPX22-042V24-110-S008 22mm Brushless DC Gear Motor, 24VDC, single-stage planetary gear box, 8:1 ratio, 0.63 Nm peak torque, 0.21 Nm continuous torque at 1043RPM, hall sensors + 2048 line differential encoder 2 days
LRPX22-042V24-110-S019 22mm Brushless DC Gear Motor, 24VDC, 2-stage planetary gear box, 19:1 ratio, 1.38 Nm peak torque, 0.45 Nm continuous torque at 426RPM, hall sensors + 2048 line differential encoder 2 days
LRPX22-042V24-110-S033 22mm Brushless DC Gear Motor, 24VDC, 2-stage planetary gear box, 33:1 ratio, 1.5 Nm peak torque, 0.8 Nm continuous torque at 240RPM, hall sensors + 2048 line differential encoder 2 days
LRPX22-042V24-110-S066 22mm Brushless DC Gear Motor, 24VDC, 3-stage planetary gear box, 66:1 ratio, 2.0 Nm peak torque, 1.43 Nm continuous torque at 122RPM, hall sensors + 2048 line differential encoder 2 days
LRPX22-042V24-110-S081 22mm Brushless DC Gear Motor, 24VDC, 3-stage planetary gear box, 81:1 ratio, 2.0 Nm peak torque, 1.60 Nm continuous torque at 98RPM, hall sensors + 2048 line differential encoder 2 days