TYPE 4

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4 - WHEELS TAPERED ON BOTH SIDES

Due to their design and concave steel flanges, the Type 4 grinding wheels are protected against the possibility of slip off of wheel fragments.

They are used for rough grinding on steel, cast iron, cast steel, aluminium, bronze and other materials. They may be used on specialized electrical or pneumatic portable grinding machines, exceptionally without guards.

MARKING EXAMPLES
4 - 75/20 x 19/16 x 20 - 95A16Q5B51 - 50

4 - D / J x T / U x H

D ≤ 200

 


Type 4

Dimensions [mm]

D

J

T

U

H

75

16

20

16

16

20

19

16

20

80

25

20

16

25

21

100

25

20

15

25

20

32

27

Characteristics

Type and nature of abrasive

95A 97A 99A CrA
M ZrA 98C 99C
mieszaniny ziarnowe

Grain size (granulation)

14 - 60

Hardness grade

M - R

Bond type

B; BF

Operating speed [m/s]

≤ 50; 63*; 80*

*) characteristic for wheels operating at  63 i 80 m/s need to be agreed on individually