ISO 10230-1990 PDF

Full title and description

ISO 10230:1990 — Cycles — Splined hub and sprocket — Mating dimensions. Specifies the mating dimensions and tolerances for the sprocket and the splined hub of an internally geared hub or a backpedal-brake hub used on cycles; dimensional details are given in the standard figure(s).

Abstract

Specifies mating dimensions and tolerances for the sprocket and splines of the hub of an internally geared hub or a backpedal brake hub on a cycle. The dimensions and tolerances for the fitting are provided in the illustrated figure(s) of the standard.

General information

• Status: Published; last reviewed and confirmed by ISO in 2019 (remains current as confirmed by ISO).
• Publication date: 6 December 1990 (ISO edition: December 1990).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.150 — Cycles.
• Edition / version: Edition 1, 1990.
• Number of pages: 2 pages (original ISO document).

Scope

This standard defines the mating interface dimensions and tolerance limits for splined hubs and matching sprockets used with internally geared bicycle hubs and backpedal-brake hubs. It is intended to ensure interchangeability and proper fit between sprockets and hub splines by specifying the form, key dimensions and tolerances that manufacturers should apply.

Key topics and requirements

• Defined mating dimensions for splined hub and sprocket interfaces (profile, diameters, lengths and datum references).
• Tolerance zones and fits required to ensure correct assembly and secure engagement.
• Application limited to internally geared hubs and backpedal-brake hubs on cycles.
• Reference illustration(s) (figure(s)) providing exact dimensional details for manufacture and inspection.

Typical use and users

Used by bicycle hub and sprocket designers, component manufacturers, quality and inspection laboratories, test houses, procurement specialists specifying interchangeability requirements, and standards committees dealing with cycle components. The standard is typically referenced where precise hub-to-sprocket fit and interchangeability are required in production or product specifications.

Related standards

National adoptions and equivalents include standards adopted by national bodies (for example BS 6102-13:1991 is listed as identical to ISO 10230:1990). Some national institutes publish the ISO text as DIN ISO 10230 (adoption in 2016 in the DIN catalogue). The standard is part of the body of cycle-related standards managed by ISO/TC 149 (Cycles) and classified under ICS 43.150.

Keywords

cycles, bicycle hub, splined hub, sprocket, mating dimensions, spline tolerances, internally geared hub, backpedal brake hub, interchangeability, ISO 10230.

FAQ

Q: What is this standard?

A: ISO 10230:1990 is an international standard that specifies the mating dimensions and tolerance requirements for splined hubs and matching sprockets used on certain bicycle hubs (internally geared and backpedal-brake hubs).

Q: What does it cover?

A: It covers the geometric dimensions, tolerances and the reference figure(s) that define the correct fit between a splined hub and its sprocket for the indicated hub types; it does not cover unrelated bicycle components or performance testing.

Q: Who typically uses it?

A: Bicycle component manufacturers (hubs and sprockets), design engineers, quality/control inspectors, laboratory/test houses, and standards committees or purchasers who require defined interchangeability for hub-sprocket assemblies.

Q: Is it current or superseded?

A: ISO 10230:1990 was last reviewed and confirmed by ISO in 2019 and is listed as confirmed/current by ISO (i.e., it was not withdrawn or superseded at that review). Users should check with their national standards body or ISO for any updates or amendments since that confirmation.

Q: Is it part of a series?

A: It is part of the body of cycle-related standards maintained by ISO/TC 149 and classified under ICS 43.150; it is a stand-alone specification for spline mating dimensions rather than a numbered multi-part series. National identical/adopted versions (for example BS or DIN adoptions) exist.

Q: What are the key keywords?

A: Splined hub, sprocket, mating dimensions, spline tolerances, internally geared hub, backpedal brake hub, interchangeability, ISO 10230.