ISO 12297-1:2021 PDF

Name: ISO 12297-1:2021 — Rolling bearings — Cylindrical rollers — Part 1: Boundary dimensions, geometrical product specifications (GPS) and tolerance values for steel rollers
SKU: ISO 12297-1:2021
Price: 25 EUR
Availability: InStock

Rolling bearings — Cylindrical rollers — Part 1: Boundary dimensions, geometrical product specifications (GPS) and tolerance values for steel rollers

Название (английский):

ISO 12297-1:2021

Rolling bearings — Cylindrical rollers — Part 1: Boundary dimensions, geometrical product specifications (GPS) and tolerance values for steel rollers

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 12
Дата публикации:: 29 октября 2021 г.
Издание:: ISO IS 12297 edition 1 version 1
ICS:: 21.100.20

Тип поставки:

Full version180 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:2 раб. дн. (перевод)

Цена:180 €

Описание (английский):

This document specifies nominal boundary dimensions, geometrical product specifications (GPS) and tolerance values for finished steel cylindrical rollers for rolling bearings. The maximum roller diameter is 40 mm. Annexes A and B give the sorting principles for roller diameter and roller length tolerances and gauges, respectively.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 12297-1:2021 - Rolling bearings - Cylindrical rollers - Part 1 specifies nominal boundary dimensions, geometrical product specifications (GPS) and tolerance values for finished steel cylindrical rollers used in rolling bearings. The standard covers rollers with a maximum diameter of 40 mm and includes normative requirements for dimensions, surface roughness, axial run‑out and hardness. Informative annexes describe sorting principles and gauges for roller diameter and roller length.

Key Topics

Scope and GPS framework

Applies GPS rules (ISO GPS system) and links dimensional requirements to measurement and uncertainty principles.

Dimensions and chamfers

Nominal roller diameters, lengths and permissible chamfer radii are tabulated (see Table 1 in the standard) for a range of common sizes up to 40 mm.

Tolerance categories (roller grades)

Diameter and form tolerances and lot‑level sorting are defined by roller grades (G1, G1A, G2, G2A, G3, G5).
Key tolerance parameters (examples from Table 2):
- Rw (single roller diameter tolerance): G1 = 0.5 μm, G2 = 1 μm, G3 = 1.5 μm, G5 = 2.5 μm
- VDwmp (range of mid‑range diameter within a roller): G1 = 0.8 μm, G2 = 1.5 μm, G3 = 3 μm, G5 = 4 μm
- Ra (surface roughness): from 0.1 μm (G1) up to 0.4 μm (G5)
- SDw (axial circular run‑out): typically 6 μm (tighter grades) up to 15 μm (G5)
- VDwL (roller lot diameter variation): examples range 1.5 μm (G1) to 5 μm (G5)

Surface texture and run‑out

Surface profile assessment is referenced to ISO 4288 and GPS rules (ISO 1101).

Hardness

Specified plane hardness range for steel rollers: HRC 58–67 (informative conversion HV ~653–900). Verification methods are agreed with the manufacturer.

Sorting and gauging

Annex A/B describe how to form diameter and length gauge lots and the sorting principles for production quality control.

Applications and Users

Bearing designers and manufacturers specifying roller geometry and tolerances.

Precision component suppliers producing finished steel rollers for needle/cylindrical bearings.

Quality, metrology and inspection teams implementing acceptance criteria, gauges and sorting procedures.

OEMs in automotive, aerospace, industrial gearboxes and rolling‑contact machine elements that require specified roller interchangeability and performance.

Practical benefits:

Ensures interchangeability and predictable bearing behavior by aligning geometry, roughness and hardness requirements with GPS.

Supports production control (gauging, lot sorting) and metrological traceability.

Helps minimize edge stress (crowned profiles) and optimize roller life through defined tolerances.

Related standards

ISO 1101 (GPS - Geometrical tolerancing)

ISO 14405-1 (Dimensional tolerancing - linear sizes)

ISO 4288 (Surface texture - profile method)

ISO 15241 (Symbols for rolling bearings)

ISO 21204 (GPS - Transition specification)

ISO 8015 / ISO 14253 (GPS rules and decision rules / measurement uncertainty)

Keywords: ISO 12297-1, cylindrical rollers, rolling bearings, tolerance values, geometrical product specifications, GPS, roller diameter, roller length, steel rollers, hardness, metrology, bearing manufacturers.

ISO 12297-1:2021 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications and Users

Related standards

Технические детали

ISO 4288:1996/Cor 1:1998

Geometrical Product Specifications (GPS) — Surface texture: Profile method — Rules and procedures for the ass…

SIST EN ISO 1101:2017

Geometrical product specifications (GPS) - Geometrical tolerancing - Tolerances of form, orientation, locatio…

BS ISO 12297-1:2021-TC

Tracked Changes. Rolling bearings. Cylindrical rollers. Boundary dimensions, geometrical product specificatio…

BS EN ISO 14405-1:2025

Geometrical product specifications (GPS). Dimensional tolerancing. Linear sizes.

ISO 15241:2012/Amd 1:2020

Rolling bearings — Symbols for physical quantities — Amendment 1

SIST EN ISO 21204:2020

Geometrical product specifications (GPS) - Transition specification (ISO 21204:2020)

SIST EN ISO 8015:2012

Geometrical product specifications (GPS) - Fundamentals - Concepts, principles and rules (ISO 8015:2011)

SIST EN ISO 14253-1:2018

Geometrical product specifications (GPS) - Inspection by measurement of workpieces and measuring equipment -…