• SPG RM4 Compact DC Motors (40 mm Dia.)
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SPG RM4 Compact DC Motors (40 mm Dia.)

SPG RM4 Compact DC Motors (40 mm Dia.)

SPG RM4 series compact permanent-magnet DC motors, 40 mm diameter, for 12 V or 24 V DC supply.

Key features

  • Permanent-magnet brushed DC design with high starting torque and high efficiency
  • Easy speed control and simple reversal of rotation direction
  • 5 motor lengths with increasing continuous torque
  • Sleeve (metal) or ball bearing versions
  • Terminal or lead-wire connection
  • Optional rear mounting pattern on end cap

Specifications

Motor type Permanent magnet brushed DC motor
Motor diameter 40 mm
Spec voltage Data at 24 V DC; 12 V (A) available
Run duty 1000 h (rated voltage, no load)
Weight 0.20-0.39 kg
Code structure RM + dia + length + voltage + bearing + connector
Source SPG DC Geared Motor catalog, p. 3, 8
RM42AMT Model: RM42 (length 46.4 mm) | Voltage: 12 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM42AML Model: RM42 (length 46.4 mm) | Voltage: 12 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM42ABT Model: RM42 (length 46.4 mm) | Voltage: 12 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Ball | Connector: Terminal
RM42ABL Model: RM42 (length 46.4 mm) | Voltage: 12 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Ball | Connector: Lead wire
RM42BMT Model: RM42 (length 46.4 mm) | Voltage: 24 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM42BML Model: RM42 (length 46.4 mm) | Voltage: 24 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM42BBT Model: RM42 (length 46.4 mm) | Voltage: 24 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Ball | Connector: Terminal
RM42BBL Model: RM42 (length 46.4 mm) | Voltage: 24 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Ball | Connector: Lead wire
RM43AMT Model: RM43 (length 56.0 mm) | Voltage: 12 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM43AML Model: RM43 (length 56.0 mm) | Voltage: 12 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM43ABT Model: RM43 (length 56.0 mm) | Voltage: 12 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Ball | Connector: Terminal
RM43ABL Model: RM43 (length 56.0 mm) | Voltage: 12 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Ball | Connector: Lead wire
RM43BMT Model: RM43 (length 56.0 mm) | Voltage: 24 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM43BML Model: RM43 (length 56.0 mm) | Voltage: 24 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM43BBT Model: RM43 (length 56.0 mm) | Voltage: 24 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Ball | Connector: Terminal
RM43BBL Model: RM43 (length 56.0 mm) | Voltage: 24 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Ball | Connector: Lead wire
RM44AMT Model: RM44 (length 61.1 mm) | Voltage: 12 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM44AML Model: RM44 (length 61.1 mm) | Voltage: 12 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM44ABT Model: RM44 (length 61.1 mm) | Voltage: 12 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Ball | Connector: Terminal
RM44ABL Model: RM44 (length 61.1 mm) | Voltage: 12 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Ball | Connector: Lead wire
RM44BMT Model: RM44 (length 61.1 mm) | Voltage: 24 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM44BML Model: RM44 (length 61.1 mm) | Voltage: 24 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM44BBT Model: RM44 (length 61.1 mm) | Voltage: 24 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Ball | Connector: Terminal
RM44BBL Model: RM44 (length 61.1 mm) | Voltage: 24 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Ball | Connector: Lead wire
RM45AMT Model: RM45 (length 68.7 mm) | Voltage: 12 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM45AML Model: RM45 (length 68.7 mm) | Voltage: 12 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM45ABT Model: RM45 (length 68.7 mm) | Voltage: 12 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Ball | Connector: Terminal
RM45ABL Model: RM45 (length 68.7 mm) | Voltage: 12 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Ball | Connector: Lead wire
RM45BMT Model: RM45 (length 68.7 mm) | Voltage: 24 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM45BML Model: RM45 (length 68.7 mm) | Voltage: 24 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM45BBT Model: RM45 (length 68.7 mm) | Voltage: 24 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Ball | Connector: Terminal
RM45BBL Model: RM45 (length 68.7 mm) | Voltage: 24 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Ball | Connector: Lead wire
RM46AMT Model: RM46 (length 77.6 mm) | Voltage: 12 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM46AML Model: RM46 (length 77.6 mm) | Voltage: 12 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM46ABT Model: RM46 (length 77.6 mm) | Voltage: 12 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Ball | Connector: Terminal
RM46ABL Model: RM46 (length 77.6 mm) | Voltage: 12 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Ball | Connector: Lead wire
RM46BMT Model: RM46 (length 77.6 mm) | Voltage: 24 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM46BML Model: RM46 (length 77.6 mm) | Voltage: 24 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM46BBT Model: RM46 (length 77.6 mm) | Voltage: 24 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Ball | Connector: Terminal
RM46BBL Model: RM46 (length 77.6 mm) | Voltage: 24 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Ball | Connector: Lead wire
DC Geared MotorsSPG
40 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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SPG RM4 Compact DC Motors (40 mm Dia.)

Brand SPG·DC Geared Motors

Available part numbers (40)

RM42AMT, RM42AML, RM42ABT, RM42ABL, RM42BMT, RM42BML, RM42BBT, RM42BBL, RM43AMT, RM43AML + 30 more — see full table ↓

How to order

Send the SPG part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
RM42AMTModel: RM42 (length 46.4 mm) | Voltage: 12 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM42AMLModel: RM42 (length 46.4 mm) | Voltage: 12 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM42ABTModel: RM42 (length 46.4 mm) | Voltage: 12 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Ball | Connector: Terminal
RM42ABLModel: RM42 (length 46.4 mm) | Voltage: 12 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Ball | Connector: Lead wire
RM42BMTModel: RM42 (length 46.4 mm) | Voltage: 24 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM42BMLModel: RM42 (length 46.4 mm) | Voltage: 24 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM42BBTModel: RM42 (length 46.4 mm) | Voltage: 24 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Ball | Connector: Terminal
RM42BBLModel: RM42 (length 46.4 mm) | Voltage: 24 V DC | Rated at 24 V: 5497 rpm, 0.02 N-m | Bearing: Ball | Connector: Lead wire
RM43AMTModel: RM43 (length 56.0 mm) | Voltage: 12 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM43AMLModel: RM43 (length 56.0 mm) | Voltage: 12 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM43ABTModel: RM43 (length 56.0 mm) | Voltage: 12 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Ball | Connector: Terminal
RM43ABLModel: RM43 (length 56.0 mm) | Voltage: 12 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Ball | Connector: Lead wire
RM43BMTModel: RM43 (length 56.0 mm) | Voltage: 24 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM43BMLModel: RM43 (length 56.0 mm) | Voltage: 24 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM43BBTModel: RM43 (length 56.0 mm) | Voltage: 24 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Ball | Connector: Terminal
RM43BBLModel: RM43 (length 56.0 mm) | Voltage: 24 V DC | Rated at 24 V: 4486 rpm, 0.03 N-m | Bearing: Ball | Connector: Lead wire
RM44AMTModel: RM44 (length 61.1 mm) | Voltage: 12 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM44AMLModel: RM44 (length 61.1 mm) | Voltage: 12 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM44ABTModel: RM44 (length 61.1 mm) | Voltage: 12 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Ball | Connector: Terminal
RM44ABLModel: RM44 (length 61.1 mm) | Voltage: 12 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Ball | Connector: Lead wire
RM44BMTModel: RM44 (length 61.1 mm) | Voltage: 24 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM44BMLModel: RM44 (length 61.1 mm) | Voltage: 24 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM44BBTModel: RM44 (length 61.1 mm) | Voltage: 24 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Ball | Connector: Terminal
RM44BBLModel: RM44 (length 61.1 mm) | Voltage: 24 V DC | Rated at 24 V: 5111 rpm, 0.04 N-m | Bearing: Ball | Connector: Lead wire
RM45AMTModel: RM45 (length 68.7 mm) | Voltage: 12 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM45AMLModel: RM45 (length 68.7 mm) | Voltage: 12 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM45ABTModel: RM45 (length 68.7 mm) | Voltage: 12 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Ball | Connector: Terminal
RM45ABLModel: RM45 (length 68.7 mm) | Voltage: 12 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Ball | Connector: Lead wire
RM45BMTModel: RM45 (length 68.7 mm) | Voltage: 24 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM45BMLModel: RM45 (length 68.7 mm) | Voltage: 24 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM45BBTModel: RM45 (length 68.7 mm) | Voltage: 24 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Ball | Connector: Terminal
RM45BBLModel: RM45 (length 68.7 mm) | Voltage: 24 V DC | Rated at 24 V: 5440 rpm, 0.05 N-m | Bearing: Ball | Connector: Lead wire
RM46AMTModel: RM46 (length 77.6 mm) | Voltage: 12 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM46AMLModel: RM46 (length 77.6 mm) | Voltage: 12 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM46ABTModel: RM46 (length 77.6 mm) | Voltage: 12 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Ball | Connector: Terminal
RM46ABLModel: RM46 (length 77.6 mm) | Voltage: 12 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Ball | Connector: Lead wire
RM46BMTModel: RM46 (length 77.6 mm) | Voltage: 24 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Metal (sleeve) | Connector: Terminal
RM46BMLModel: RM46 (length 77.6 mm) | Voltage: 24 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Metal (sleeve) | Connector: Lead wire
RM46BBTModel: RM46 (length 77.6 mm) | Voltage: 24 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Ball | Connector: Terminal
RM46BBLModel: RM46 (length 77.6 mm) | Voltage: 24 V DC | Rated at 24 V: 4101 rpm, 0.07 N-m | Bearing: Ball | Connector: Lead wire

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