WSDZ1 series miniature electromagnetic power-off brakeDetailed product description：

1、 Purpose and Characteristics
The WSDZ1 series miniature electromagnetic power-off brake is a friction brake that is powered on to engage (release) and powered off by a spring, and can be matched with micro motors. Widely used in automatic mechanical transmission systems such as door machine drive, electric wheelchairs, warehouse automatic control, stage and theater machinery, automatic doors, medical equipment, stepper motors, etc., it plays a role in fast parking, safety braking, etc.
This type of brake has the characteristics of compact and simple structure, quick installation, low noise, and smooth braking. It has two functions: braking and holding, and is an ideal automation execution component.  
2、 Working principle and installation maintenance

The micro electromagnetic power-off brake is mainly composed of main components such as magnetic yoke assembly 10, spring 9, armature 8, brake disc 5, connecting plate 6, and shaft sleeve 2. Assemble the brake as a whole, tighten the air gap adjustment screw 1, adjust the air gap to the specified value δ, install the shaft sleeve 2 on the motor shaft, fix the shaft with a retaining ring in the axial direction, and tighten it with three set screws in the radial direction. The brake is installed on the motor end cover 4 through the connecting plate 6 and the installation screw 7, and the shaft sleeve 2 is connected to the transmission shaft; The brake disc 5 and the shaft sleeve 2 are matched on the side of a polyhedron. When the electromagnetic coil is powered off, under the action of spring 9, friction is generated between brake disc 5, armature 8, and connecting plate 6, which is transmitted to the transmission shaft through shaft sleeve 2 to brake the shaft. When the electromagnetic coil is energized, under the action of electromagnetic force, the armature 8 is attracted towards the magnetic yoke, causing the brake disc 5 to release and the transmission shaft brake to be released.
Installation precautions
The brake operates under dry conditions, and before installation, the friction pair surface should be cleaned of oil and debris.
The brake has already adjusted the air gap at the factory and does not require any adjustment.
After working for a period of time, due to the wear of the friction plate on the brake disc, it is necessary to readjust the working air gap of the brake.
When operating and braking frequently, it is necessary to regularly check whether the fasteners are loose. If they are loose, they should be readjusted and tightened before use.
When the brake is installed on the motor, if the motor has difficulty starting or produces noise, the brake should be checked and adjusted according to Article 2 of this manual.
During installation, the end face of the brake disc should be perpendicular to the motor shaft (with a perpendicularity tolerance accuracy level of not less than level 8).

3、 Technical parameters and installation dimensions table of WSDZ1 series miniature electromagnetic power-off brake (see Figure 1)

Specification Project Name	WSDZ1-0.5	WSDZ1-1	WSDZ1-2B	WSDZ1-2	WSDZ1-3	WSDZ1-4B	WSDZ1-8B
Rated torque (N.m)	zero point five	one	two	two	three	four	eight
Rated power (W)	six	eight	ten	ten	thirteen	fifteen	twenty-five
Rated voltage (VDC)	110/99/48/24/12
Connection time (≤ ms)	forty-five	fifty	fifty-five	fifty-five	fifty-five	sixty-three	eighty-seven
Disconnecting time (≤ ms)	thirty-nine	forty-three	forty-eight	forty-eight	forty-eight	fifty-five	seventy-two
Maximum working speed (rpm)	five thousand	five thousand	five thousand	five thousand	five thousand	three thousand	three thousand

Size Specification

D1

D2

L1

L

L2

N - M

d

h1

h

b

δ（max）

δ（min）

WSDZ1-0.5

fifty-two

forty-five

thirty-one point two

ten

two

3-M3

six

five

／

／

zero point four

zero point one five

WSDZ1-1

sixty-two

fifty-four

thirty-three point two

eleven point five

two

3-M4

eight

seven

／

／

zero point four

zero point one five

WSDZ1-2B

seventy-five

sixty-six

thirty-nine point two

eighteen

five point five

3-M4

ten

／

eleven point eight

four

zero point four

zero point two

WSDZ1-2

seventy-five

sixty-six

thirty-seven point seven

eleven

two

3-M4

ten

/

eleven point eight

four

zero point five

zero point two

WSDZ1-3

zero point four

zero point two

WSDZ1-4B

eighty-four

seventy-two

forty-two point three

eighteen

seven

3-M4

twelve

／

thirteen point eight

four

zero point five

zero point two

WSDZ1-8B

one hundred and two

ninety

fifty point two

twenty

seven point five

3- M5

fifteen

／

seventeen point three

five

zero point five

zero point two

Note: Type B refers to the mating of the brake disc and shaft sleeve through involute splines