GENERAL TORQUE SPECIFICATIONS/ DEFINITION OF UNITS

SPEC

EC220001

GENERAL TORQUE SPECIFICATIONS

This chart specifies torque for standard fasten- ers with standard I.S.O. pitch threads. Torque specifications for special components or assemblies are included in the applicable sec- tions of this book. To avoid warpage, tighten multi-fastener assemblies in a crisscross fash- ion, in progressive stages, until full torque is reached. Unless otherwise specified, torque specifications call for clean, dry threads. Com- ponents should be at room temperature.

A

B

 

TORQUE

 

SPECIFICATION

(Nut)

(Bolt)

 

 

 

 

Nm

m•kg

 

ft•lb

 

 

 

 

 

 

 

 

 

10 mm

6 mm

6

0.6

 

4.3

12 mm

8 mm

15

1.5

 

11

14 mm

10 mm

30

3.0

 

22

17 mm

12 mm

55

5.5

 

40

19 mm

14 mm

85

8.5

 

61

22 mm

16 mm

130

13

 

94

 

 

 

 

 

 

A:Distance between flats

B:Outside thread diameter

EC230000

DEFINITION OF UNITS

Unit

Read

Definition

Measure

 

 

 

 

mm

millimeter

10-3meter

Length

cm

centimeter

10-2meter

Length

kg

kilogram

103 gram

Weight

N

Newton

1 kg m/sec2

Force

Nm

Newton meter

N m

Torque

m • kg

Meter kilogram

m kg

Torque

 

 

 

 

Pa

Pascal

N/m2

Pressure

N/mm

Newton per millimeter

N/mm

Spring rate

 

 

 

 

L

Liter

Volume or capacity

cm3

Cubic centimeter

Volume or capacity

r/min

Revolution per minute

Engine speed

 

 

 

 

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Yamaha WR45OFR General Torque Specifications, Definition of Units, Mkg Ftlb 10 mm 12 mm 14 mm 17 mm 19 mm 22 mm 16 mm 130