Model No.

Main Performance 

Rated Voltage 

No Load

At Maximum Efficiency

At Stall

Speed

Current

Speed

Current

Torque

Output

Eff.

Current

Torque

V

r/min

A

r/min

A

g.cm

W

%

A

g.cm

FK-280SA-4525

1.2 CONST

8,670

0.73

6,560

2.24

17.7

1.3

48.44

8.34

98

FK-280SA-20120

12.0 CONST

16,200

0.18

13,522

0.71

38.9

5.63

66.02

4.8

290

FK-280SA-2760

4.5 CONST

12,200

0.27

10,060

1.21

30.4

3.28

64.33

6.25

215

FK-280SAV-16228

9.0 CONST

6,000

0.06

5,052

0.32

31.6

1.64

57.1

1.7

200

FK-280SAV-2780

5.0 CONST

10,000

0.20

8,225

0.93

39.1

3.3

71.2

4.3

220

FK-280PAV-3544

3.0 CONST

11,000

0.35

9,227

1.82

33.9

3.21

58.7

9.5

210

FK-280SAV-14240

12.0 CONST

8,400

0.074

6,890

0.29

29.4

2.14

62.01

1.58

190

FK-280SA-3153

2.40 CONST

7,500

0.30

6,094

1.30

33.8

2.11

67.6

5.64

180

Basic Structure of Chengfang Motors

• 2-pole stator
• Sr ferrite permanent magnet
• 3, 5, 7, 8, 9, 12,16 slots armature
• Silicon-steel lamination with epoxy coating
• High-carbon steel shaft
• Cu-Ag alloy commutator
• Copper-graphite brushes
• Be-Cu leaf-brush commutating system
• SECD round / flat type housing
• SECD end cap / glassfiber reinforced PA6/6 end cap
• Cylinder / self-aligning Cu-Fe alloy sintered bushes
• 155^oC (class F) magnet wire

↓

↓

↓

↓

↓

Customerized Options

• Leadwires with connector / pins
• EMI suppression components
• PTC or thermostate protection
• Built-in AC/DC rectifier
• Built-in cooling fan
• Multiple output shaft
• diamond knurls, straight knurls, D-cut, stepped shaft
• Shaft-mounted gears, essentric gears, belt pulleys
• Stainless steel (SS304, SS420) shaft
• Ball bearing
• Cage-brush commutating system
• Precious metal brush / commutator
• Hall encoder
• Low-cogging torque design
• 180^oC (class H), 200^oC (class C) magnet wire
• -40^oC ~ 220^oC bearing lubricant
• Neodymium magnets