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Miniature Brushless DC Motors

SL05 Series Miniature Slotless BLDC Motors

Size 5, High Speed, High Performance BLDC Motors

High speed capability up to 100,000 RPM High K

m

values mean high torque density and high performance Slotless design for smooth cog-free torque output Precision ball bearings for long life and low audible noise Hall-effect feedback as standard Size 5 (0.5” dia.) high performance brushless DC motor for surgical handpieces

Options

Planetary gearhead (5:1, 25:1, 125:1) Double the performance of same sized competitive units Autoclavable version (minimum of 500 autoclave cycles) Shaft seals Available options include planetary gearhead and autoclavability Patent-pending technology in Allied Motion’s SLH series enables these miniature slotless brushless motors to deliver up to double the performance of equivalently-sized motors. The SLH series was designed specifically to power precision instruments such as surgical handpieces and similar medical and dental power tools; however, they are also an ideal choice for any application that requires a small yet powerful, high speed BLDC motor, such as small high speed spindles, machine automation, or robotics.

Features & Benefits

Custom winding designs Size 5 (12.5 mm) diameter accommodates a wide range of handpiece designs Custom shaft, cabling, materials designs Standard 24 and 48 VDC windings

SPECIFICATIONS

Motor Constants Symbol Units Winding A Winding B Winding C Winding D

Continuous Torque
1 Tcs
M oz-in (Nm) 0.85 (6.03E-03) 0.85 (6.01E-03) 0.85 (6.00E-03) 0.85 (6.04E-03) Continuous Torque (heat sink)
2 Tcs
HS oz-in (Nm) 0.94 (6.63E-03) 0.93 (6.60E-03) 0.93 (6.58E-03) 0.94 (6.63E-03) Stall Torque (nom. supply voltage) Tstall oz-in (Nm) 4.51 (3.19E-02) 2.24 (1.58E-02) 2.87 (2.02E-02) 2.26 (1.59E-02) Motor Constant
3 K
m oz-in/√W 0.346 0.345 0.344 0.346 Electrical Time Constant t
e ms 0.071 0.071 0.070 0.071 Mechanical Time Constant t
m ms 3.966 3.996 4.016 3.963 Thermal Impedance Motor Only Rth
m °F/watt (°C/watt) 68.90 (20.50) 68.90 (20.50) 68.90 (20.50) 68.90 (20.50) Thermal Impedance With heat sink Rth
HS °F/watt (°C/watt) 62.60 (17.00) 62.60 (17.00) 62.60 (17.00) 62.60 (17.00) Damping Constant Zero Source Impedance Kd oz-in/kRPM (Nm/rad/s) 1.32E-04 (8.91E-09) 1.31E-04 (8.84E-09) 1.30E-04 (8.80E-09) 1.32E-04 (8.92E-09) Friction Torque T
f oz-in (Nm) 0.05 (3.53E-04) 0.05 (3.53E-04) 0.05 (3.53E-04) 0.05 (3.53E-04)
1.) Specified at max. winding temperature at 25C ambient, motor only 2.) With 4” X 4” X 0.125” Aluminum heat sink 3.) Theoretical values for reference only

Mechanical Constants Symbol Units Winding A Winding B Winding C Winding D

2 Rotor Inertia Jm oz-in-s (kg-m
2 ) 5.00E-06 (3.53E-08) Motor Weight Wm oz (g) 1.42 (40.26) Motor Axial Length L1 in (mm) 2.00 (50.80)

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© Allied Motion Technologies Inc. Specifications subject to change without notice Issued: Preliminary