ISO 8419:2003

Name: ISO 8419:2003 — Belt drives — Narrow V-belts — Sections 9N/J, 15N/J and 25N/J (lengths in the effective system)
SKU: ISO 8419:2003
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Belt drives — Narrow V-belts — Sections 9N/J, 15N/J and 25N/J (lengths in the effective system)

Название (английский):

ISO 8419:2003

Belt drives — Narrow V-belts — Sections 9N/J, 15N/J and 25N/J (lengths in the effective system)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 10
Дата публикации:: 30 января 2003 г.
Издание:: ISO IS 8419 edition 3 version 1
ICS:: 21.220.10

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Описание (английский):

ISO 8419:2003 specifies, for narrow V-belts of cross-sections 9N/J (for pulley grooves of effective width 8,9 mm), 15N/J (for pulley grooves of effective width 15,2 mm) and 25N/J (for pulley grooves of effective width 25,4 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.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview - ISO 8419:2003 (Narrow V‑belts, effective system)

ISO 8419:2003 specifies standardized effective lengths, tolerances, centre‑distance variations, measurement conditions, and designation/marking for narrow V‑belts of cross‑sections 9N/J, 15N/J and 25N/J (for pulley grooves of effective widths 8.9 mm, 15.2 mm and 25.4 mm respectively). This third edition updates length and quality requirements for single and joined narrow V‑belts (including raw‑edge cogged forms identified by “X”).

Key topics and technical requirements

Standard effective lengths: Nominal effective lengths are chosen from the R40 preferred‑number series (Table 1 in the standard). Example designations use the section plus length (e.g., 9N 1600 or 9J 1600).

Manufacturing tolerances: Permissible deviations on effective length are specified by nominal length ranges (Table 2). Smaller belts have tighter length tolerances (for example L ≤ 800 mm: ±8 mm; higher lengths have progressively larger tolerances).

Belt‑matching tolerances: Maximum permissible length deviation between belts in the same set (multiple‑belt drives) is given by length bands (Table 3) to ensure balanced load sharing.

Centre distance variation: Permissible centre‑distance variation limits are provided by belt section and length (Table 4). These affect vibration, belt life and dynamic performance.

Measurement method: Effective length is measured on two identical grooved pulleys under specified measuring force and pulley circumference (Table 5). Measurement forces per belt section are defined (examples: 9N - 445 N; 15N - 1 000 N; 25N - 2 225 N). Centre‑distance variation testing references ISO 9608.

Designation & marking: Belts must be legibly and durably marked with section and effective length on the outer non‑working face.

Applications - who uses ISO 8419

Belt and pulley manufacturers for product specification, production control and labelling

Mechanical designers and power‑transmission engineers selecting matched narrow V‑belt sets

Maintenance, reliability and asset managers ensuring correct belt replacement and balancing

Quality and test laboratories performing length, uniformity and centre‑distance checks

Procurement and standards teams specifying compliant components for industrial drives

Related standards

ISO 1081 - V‑belts vocabulary and terms

ISO 5290:2001 - Grooved pulleys for joined narrow V‑belts (effective system)

ISO 9608 - V‑belts uniformity and centre‑distance variation test method

ISO 3 - Preferred numbers series

Keywords: ISO 8419, narrow V‑belts, effective length, belt tolerances, centre distance variation, belt designation, V‑belt measurement, 9N 15N 25N.

ISO 8419:2003

Abstract

Похожие стандарты

Overview - ISO 8419:2003 (Narrow V‑belts, effective system)

Key topics and technical requirements

Applications - who uses ISO 8419

Related standards

Технические детали

ISO 5290:2001

Belt drives — Grooved pulleys for joined narrow V-belts — Groove sections 9N/J, 15N/J and 25N/J (effective sy…

ISO 9608:1994

V-belts — Uniformity of belts — Test method for determination of centre distance variation

ISO 10816-5:2000

Mechanical vibration — Evaluation of machine vibration by measurements on non-rotating parts — Part 5: Machin…

ISO 3021:2023

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