BS AU 150b:1984

Foreword
Committees responsible
Specification
Section one. General
1.1 Scope
1.2 Definitions
Section two. Belts
2.1 Designation
2.2 Cross section dimensions
2.3 Effective length
2.4 Tolerances on nominal belt length
2.6 Variation of belt cross section
2.7 Variation of belt ride-out
2.8 Mean value of ride-out
2.9 Belt test life
2.10 Electrical resistance
2.11 Resistance to ozone
2.12 Resistance to oil
2.13 Hardness of rubber core
2.14 Resistance to low temperature
2.15 Resistance to high temperature
2.16 Marking
Section three. Pulleys
3.1 Design and construction
3.2 Dimensions
3.3 Designation
3.4 Surface of grooves
3.5 Cast iron pulleys
3.6 Axial and radial run-out
Appendices
A. Information to be supplied by the purchaser
B. Recommended nominal belt lengths
C. Determination of belt test life
D. Determination of electrical resistance of belts
E. Determination of belt resistance to ozone
F. Determination of belt resistance to oil
G. Determination of belt resistance to low temperature
H. Determination of belt resistance to high temperature
J. Measurement of run-out of pulleys
K. Guidance and calculations for drive design
Tables
1. Nominal dimensions of belt cross section
2. Dimensions and characteristics of measuring fixture
      pulleys
3. Belt measuring force
4. Dimensions and characteristics of pulleys
5. Recommended nominal belt lengths for AV 10 groove
      section
6. Recommended nominal belt lengths for AV 13 groove
      section
7. Dimensions and characteristics of test pulleys
8. Sequence of calculation
9. Service factors for driven auxiliaries
10. Arc of contact factor K1
11. Centrifugal tension factor K2
Figures
1. Effective line differential
2. Layout of measuring fixture
3. Groove cross section of measuring fixture pulley
4. Mean value f of belt ride-out on measuring pulley
5. Belt cross section
6. Groove cross section of production pulley
7. Layout of test machine
8. Apparatus for measuring the electrical resistance
      of belts
9. Arrangement for radial run-out measurement
10. Arrangement for axial run-out measurement
11. Layout of drive

Specifies the dimensions and other properties of V-belts and their corresponding pulleys used for automotive purposes.