Lin Engineering
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BL34 SeriesBL34E21-01BLDC Motor

  • 3.150 in Frame Size
  • 5 A Rated Current
  • 33.99 oz-in Rated Torque
  • 24 VDC Rated Voltage
  • 2.010 in Length

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No Gearbox
Single Shaft
Flat Shaft
No Encoder
- empty -
- empty -
Molex Connector
12 inch (30.50 cm)
Looking For Higher Volume?

Motor Specifications

Frame Size3.150 in
Body Length (Dimension A) 2.010 in
Rated Voltage24 VDC
Rated Output Power 100 W
Rated Speed4000 RPM
Max Speed 4500 RPM
Rated Torque33.99 oz-in
Rated Current5 A
Max Torque67.97 oz-in
Resistance0.18 ohm
Terminal Inductance 0.34 mH
Torque Constant6.797 oz-in/A
Rotor Inertia2.08 oz-in²
Weight2.16 lbs
Electrical Time Constant1.9 ms
Mechanical Time Constant3.1 ms


ModelDIM. A (length) in
BL34E21-012.010 in

Torque Curves

  • Peak Range
  • Continuous Range



Motor Operating Specifications

Hall Effect Angle120° electrical Angle
Radial Play0.002 in @ 0.99 lbs
End Play0.003 in @ 99.21 lbs
Max. Radial Force0.787 in @ 16.80 lbs
Max. Axial Force3.37 lbs
Insulation ClassClass B
Dielectric Strength500 VDC for 1 minute
Insulation Resistance100 Ω Min. 500 VDC
Ambient Operating Temperature-4 ° to 122 °F
Storage Temperature-4 ° to 212 °F
Humidity Range (%) 85% (RH) non-condensing
Direction Of RotationCCW

Pin Outs

Content image

BL34 Series

Related Products


BL34E21-01 Configured Datasheet (PDF)
BLDC Numbering System (PDF)
BL34E21 Double Shaft 3D Model (STP)
BL34E21 Single Shaft 3D Model (STP)

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