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

RS-997SHF-6513

10.5 CONST

7,000

1.85

6,125

12.9

1438

86.4

63.76

90

11500

RS-997SH-3768

6.0 CONST

650

0.18

507

0.63

418

2.08

55.03

2.2

1900

RS-997SHF-8012

14.0 CONST

8,900

1.10

7,889

8.58

1090

88.2

73.45

67.0

9600

RS-997SHF-8508

14.0 CONST

13,000

2.50

11,160

15.17

1274

145.9

68.69

92

9000

RS-997SHF-8010

14.0 CONST

11,000

1.40

9,808

12.76

1278

128.7

72.0

105.0

11800

RS-997SH-7009

12.0 CONST

9,800

1.95

8,808

17.32

1713

154.9

74.6

153.8

16930

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