General Torque Specifications; Definition Of Units - Yamaha WR250F Manual De Servcio Del Propietario

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
(Nut) (Bolt)
10 mm 6 mm
12 mm 8 mm
14 mm 10 mm
17 mm 12 mm
19 mm 14 mm
22 mm 16 mm
EC230000

DEFINITION OF UNITS

Unit
mm millimeter
cm centimeter
kg kilogram
N Newton
Nm Newton meter
m • kg Meter kilogram
Pa Pascal
N/mm Newton per millimeter
L Liter
3
cm Cubic centimeter
r/min Revolution per minute
GENERAL TORQUE SPECIFICATIONS/
TORQUE
SPECIFICATION
Nm m•kg ft•lb
6 0.6 4.3
15 1.5 11
30 3.0 22
55 5.5 40
85 8.5 61
130 13 94
Read
DEFINITION OF UNITS
A: Distance between flats
B: Outside thread diameter
Definition
-3
10 meter
-2
10 meter
3
10 gram
1 kg × m/sec
2
N × m
m × kg
2
N/m
N/mm
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SPEC
Measure
Length
Length
Weight
Force
Torque
Torque
Pressure
Spring rate
Volume or capacity
Volume or capacity
Engine speed