GB/T 3478.9-2008Straight cylindrical involute splines - Metric module, side fit - Part 9: Measuring pin (English PDF)

3.1

The type and size of the bar are shown in Figure 1 and Table 1.

3.2

equivalent bar size exceeds the value of Table 1, according to GB/T 321 R40 selected.

Figure 1

Table 1 bar size unit in millimeters

Measuring rod diameter DR Basic size limit deviation

Measuring rod type size

0.56

0.60

0.63

0.67

0.71

0.75

0.80

0.85

0.90

0.95

1.00

1.06

1.12

1.18

1.25

1.32

1.40

1.50

1.60

1.70

1.80

1.90

2.00

2.12

2.24

2.36

2.50

2.65

2.80

3.00

3.15

3.35

3.55

3.75

4.00

4.25

4.50

4.75

5.00

± 0.001

0.51

0.55

0.58

0.62

0.66

0.70

0.75

0.80

0.85

0.90

0.95

1.01

1.07

1.13

1.20

1.27

1.35

1.45

1.52

1.62

1.72

1.82

1.92

2.04

2.16

2.28

2.42

2.57

2.72

2.92

3.07

3.27

3.47

3.67

3.92

4.17

4.42

4.67

4.92

2.0

2.5

3.0

0.20

0.25

0.30

0.40

0.50

0.60

0.70

0.80

Table 1 (continued) The unit is in millimeters

Measuring rod diameter DR Basic size limit deviation

Measuring rod type size

5.30

5.60

6.00

6.30

6.70

7.10

7.50

8.00

8.50

9.00

9.50

10.00

10.60

11.20

11.80

12.50

13.20

14.00

15.00

16.00

17.00

18.00

19.00

20.00

21.20

22.40

23.60

25.00

± 0.001

5.00

6.00

7.00

7.50

10.00

15.00

- - 3.3 Tolerance of rod diameter should follow the principle of inclusion.

4.1

measurement of the rod should not have rust, dark spots and scratches and other significant impact on the use of quality and appearance of the defects, both ends should not have rust and crack.

4.2

bar available alloy tool steel, carbon tool steel and other wear-resistant materials.

4.3

measuring rod hardness should be 664HV ~ 825HV.

4.4

rod should be stable by heat treatment.

Book GB/T 3478.9-2008

5.1

should be marked on the bar.

A) Registered trademark of the manufacturer;

B) The basic dimensions of the rod diameter.

When the diameter of the rod is less than 16mm, the label with the above mark is allowed to be attached.

5.2

Product box should be marked.

A) product name, manufacturer name and registered trademark;

B) The basic dimensions of the rod diameter.

5.3

bar in the packaging should be coated with oil and other anti-rust treatment, and properly packaged. Do not damage the product during shipment due to poor packaging.

5.4

product box should be accompanied by product certification. Product certification should be part of the standard number, product serial number and date of manufacture, inspection

Department mark.

8002-

9  8743

T/B […]