Product Categories
Contact Us

Zhanci Hardware (Dongguan Office)

Add: Changan Town Dongguan City

Tel: +86 769 83068911

M: +86 186 6510 4411

Email: alice@clichnuts.com

Zhanci Hardware Products Co.,Ltd (Factory)

Add: B02 Building Jintaiyuan Industrial Park,

Xinxu Town, Huiyang Area, Huizhou City

Tel: +86 752 3629 608

Fax:+86 752 3629 608

The Semi-circular Key

The Semi-circular Key

The semi-circular key Product Description : The semi-circular key is a kind of key, an upper surface is a plane, the lower surface is a semi-circular surface, and the two sides are parallel, commonly known as a crescent key. It is basically the same as the flat key connection, but it is more...

Products Specifications:

The semi-circular key

Product.jpg

Product Description

The semi-circular key is a kind of key, an upper surface is a plane, the lower surface is a semi-circular surface, and the two sides are parallel, commonly known as a crescent key.

 

It is basically the same as the flat key connection, but it is more convenient to manufacture than the flat key, easy to assemble and disassemble, especially suitable for the coupling of the tapered shaft and the hub.

 

The semi-circular key transmits torque on the side. The key can swing around the centre of curvature of the bottom surface of the groove in the shaft groove, and the assembly is convenient. The keyway is deeper and the weakening of the shaft is greater.

Application range

Half round Keys  are generally used for Automobiles, gearboxes, starters, alternators, fuel injection pumps, oil pumps, water pumps and brake compressors, Two wheeler s, Electric motors, alternators and switch gears, Machine tools and all types of pumps Textile marchioness, Pharmaceutical Machinery , Heavy Duty Machinery, Earth-moving Machinery, Automotive Crane etc.

Drawing diagram   (Unit: mm)

dim..jpg

Shaft diameter D

B

(h9)

K

(h11)

L

Passing the torque

Positioning

3-4

3-4

1

1.4

3.9

>4-5

>4-6

1.5

2.6

6.8

>5-6

>6-8

2

2.6

6.8

>6-7

>8-10

2

3.7

9.7

>7-8

>10-12

2.5

3.7

9.7

>8-10

>12-15

3

5

12.7

>10-12

>15-18

3

6.5

15.7

>12-14

>18-20

4

6.5

15.7

>14-16

>20-22

4

7.5

18.6

>16-18

>22-25

5

6.5

15.7

>18-20

>25-28

5

7.5

18.6

>20-22

>28-32

5

9

21.6

>22-25

>32-36

6

9

21.6

>25-28

>36-40

6

10

24.5

>28-32

40

8

11

27.4

>32-38

/

10

13

31.4



Hot Tags: the semi-circular key, China, suppliers, manufacturers, factory, wholesale, customized, cheap, bulk, design, OEM, in stock, for sale