Slotless Brushless DC Motors
335245Item

Description

1

Slotless encapsulated
autoclavable stator

2Rotor assembly with
2- pole ring magnet

3

Stainless steel housing

4High speed bearing

5

Planetary gearhead

5PerformeX SL05 slotless brushless
DC Motor and planetary gearhead

1

Slotless Brushless DC Motor
Technology

Advantages of Slotless
Brushless DC Motors

Slotless Brushless DC MotorApplications

The winding of a slotless brushless DC
motor is not wound around stator
teeth as in a traditional brushless
motor. Instead, it is an ironless,cylindrically shaped self-supportingstructure (item 1 above) placed within
the air gap of the motor between thestator back iron laminations and therotor assembly. The slotless design
eliminates cogging torque, yielding a
motor with very smooth rotation, andreduced vibration and audible noise.

Allied Motion’s PerformeX slotlessbrushless DC motors have numerous
attributes that make them an ideal
choice for many applications:

Here are a few of the applications
that benefit from the advantages ofPerformeX slotless brushless DCmotors:• Zero-cogging torque for smooth
operation and minimal vibration

Medical• High speed capability of up to
100,000 RPM ( 50,000 RPM withgearbox )• Surgical robot systems• Excellent power-to-weight ratio
enabling the design of compact,
light-weight hand tools• High speed medical drills

The rotor (item 2) is similar to thatused in the traditional brushless
motor. It has a number of magnet
segments that define the motor poles
and are affixed to a rotor corecentered about and fixed to themotor shaft. The magnets are usuallya high-strength, rare-earth type, suchas neodymium or samarium cobalt.
A key difference with Allied Motion’s
PerformeX slotless brushless DC
motors is that they employ patented
technology that enables us to double
their performance compared to otherequivalently-sized motors.

• Protected windings for applications
requiring autoclavability• Hall sensors with pull-up resistors
and bypass capacitors for electricalnoise suppression• Neodymium (or samarium cobalt)
magnets maximize torque output• Low loss lamination material forincreased performance• Powered surgical handpieces• Prosthetic limb drive systems• Small centrifuges
Factory Automation• Semiconductor device assembly andtest systems• High speed miniature spindles• High speed pick and placeelectronic assembly systems• Rotating adhesive/coatings
dispensing systems• High speed semiconductor drills• High quality ball bearings forincreased life, smooth high speed
operation and lower audible noise• 200 ºC insulation for higherreliability

North America: 1 (888) 392-5543 • Europe: +31 (78) 621 9940 • Asia: +852 2607 4038
© Allied Motion Technologies Inc.

1Technology Ovr TO-SL02

Slotless Brushless DC Motors

SL05

Size (OD)[mm (in)]

StallTorque[mNm(oz-in)]Cont.
Torque[mNm(oz-in)]SpeedNo-load[RPM (rad/s)]

Inertia[kgm2(oz-in-s2)]

Voltages(VDC)

Options12.5 (0.5)

39.5
(5.6)

6.88
(0.97)Up to 99,874(10,459)

3.53E-08(5.00E-06)

24, 48• Planetary gearhead (3, 5, 10,25 ratios)• Autoclavability• Balanced rotor to ISO grade-1• Custom leads and connector

configuration• Custom shaft / flange• Shaft seals

SL06

15.24 (0.6)

66.4
(9.4)

13.8
(1.95)Up to 99,500(10,420)

6.07E-08(8.60E-06)

24, 48• Planetary gearhead (3, 5, 10,25 ratios)• Autoclavability• Balanced rotor to ISO grade-1• Custom leads and connector

configuration• Custom shaft / flange• Shaft seals

Note: Blue-shaded area indicates optimum operational area for the motor

North America: 1 (888) 392-5543 • Europe: +31 (78) 621 9940 • Asia: +852 2607 4038
© Allied Motion Technologies Inc.

2Technology Ovr TO-SL02