Belt drives. Narrow V-belts. Sections 9N/J, 15N/J and 25N/J (lengths in the effective system)
This International Standard specifies, for narrow V-belts of cross-sections 9N/J (for pulley grooves of effective width 8,9Â mm), 15N/J (for pulley grooves of effective width 15,2Â mm) and 25N/J (for pulley grooves of effective width 25,4Â mm),
the standard effective lengths,
the tolerances on effective lengths,
the centre distance variations,
the conditions for measuring the effective length and the centre distance variation, and
the designation and marking.
NOTEÂ 1 The cross-section of a narrow V-belt is defined by a number (9, 15 or 25) followed by the letter N or J to denote single or joined belts.
NOTE 2 To define belts of raw-edge cogged construction, the letter “X” is added, i.e. NX or JX.
| SDO | BSI: British Standards Institution |
| Document Number | ISO 8419 |
| Publication Date | Feb. 12, 2003 |
| Language | en - English |
| Page Count | |
| Revision Level | |
| Supercedes | |
| Committee | W/- |
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