BS 3790:1995
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for endless wedge belt drives and endless V-belt drives
Hardcopy , PDF
04-28-2006
English
06-15-1995
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Committees responsible
Foreword
Specification
1. Scope
2. References
3. Definitions
4. Wedge belts and V-belts
5. Grooved pulleys
Annexes
A. (informative) Recommendations for drive design
B. (informative) Recommended practice for installation
tension in belt drives and calculation of resultant
force imposed on the shaft
C. (informative) Storage of belts
D. (informative) Comparison of the definitions of the
terms, 'pitch width' in BS 3790, and 'datum width'
in ISO 1081
E. (normative) Determination of belt pitch length
F. (normative) Tests for electrical resistance of belts
G. (normative) Test for fire resistance of belts
Tables
1. Belt cross section dimensions
2. Tolerances and force requirements when measuring new
belts
3. Dimensions of pulleys for measuring lengths of new
belts
4. Nominal pitch lengths of wedge belts and V-belts
and permitted tolerances
5. Fire resistance of belts
6. Surface finish of pulleys
7. Dimensions of standard grooved pulleys for wedge and
V-belt drives
8. Preferred pulley pitch diameters
A.1 Service factors for belt drives
A.2 Standard base lengths Lo for power rating formulae
B.1 Deflection force required for measuring installation
tension in wedge and V-belt drives
E.1 Centre distance variation delta C on measuring fixture
Figures
1. Belt cross sections
2. Basic belt construction
3. Pulley limiting rotational speed indicating limits
for static or dynamic balancing
4. Multi-groove pulley cross section
A.1 Selection of wedge belt cross section
A.2 Selection of V-belt cross section
B.1 Belt deflection measurement
E.1 Measuring pulley and apparatus for measuring belt
length
F.1 Apparatus for measuring the electrical resistance
of belts
G.1 Arrangement of burner apparatus for flame test
G.2 Cabinet for flame test
List of references
Specifies the dimension and certain other properties of endless wedge belts and V-belts and their corresponding grooved pulleys when used for power transmission. Does not apply to industrial variable speed drives that use pulleys with movable flanges.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes 91/76387 DC and BS 3790(1981) (07/2005)
|
| DocumentType |
Standard
|
| Pages |
34
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| Standards | Relationship |
| ISO 155:1998 | Similar to |
| ISO 4184:1992 | Similar to |
| ISO 4183:1995 | Similar to |
| ISO 4183:1995 | Belt drives — Classical and narrow V-belts — Grooved pulleys (system based on datum width) |
| BS 6861-1:1987 | Mechanical vibration. Balance quality requirements of rigid rotors Method for determination of permissible residual unbalance |
| BS AU 150b:1984 | Specification for automotive V-belts and pulleys |
| ISO 5292:1995 | Belt drives V-belts and V-ribbed belts Calculation of power ratings |
| BS EN 20340:1993 | Conveyor belts. Flame retardation. Specifications and test method |
| ISO 1081:1995 | Belt drives V-belts and V-ribbed belts, and corresponding grooved pulleys Vocabulary |
| ISO 1813:2014 | Belt drives — V-ribbed belts, joined V-belts and V-belts including wide section belts and hexagonal belts — Electrical conductivity of antistatic belts: Characteristics and methods of test |
| BS 1913:1990 | Specification for soft soap |
| ISO 254:2011 | Belt drives — Pulleys — Quality, finish and balance |
| ISO 155:1998 | Belt drives Pulleys Limiting values for adjustment of centres |
| ISO 9608:1994 | V-belts Uniformity of belts Test method for determination of centre distance variation |
| ISO 4184:1992 | Belt drives — Classical and narrow V-belts — Lengths in datum system |
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