SIST ISO 355:2020 PDF

Name: SIST ISO 355:2020 — Rolling bearings - Tapered roller bearings - Boundary dimensions and series designations
SKU: SIST ISO 355:2020
Price: 96.97 EUR
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Rolling bearings - Tapered roller bearings - Boundary dimensions and series designations

Название (английский):

SIST ISO 355:2020

Rolling bearings - Tapered roller bearings - Boundary dimensions and series designations

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 45
Дата публикации:: 20 июля 2020 г.
ICS:: 21.100.20
Технический комитет:: ISEL - Mechanical elements

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Описание (английский):

This document specifies bearing and subunit boundary dimensions for complete single-row and double-row tapered roller bearings. It also specifies the flange dimensions of flanged outer rings for a selection of these bearings. A series designation for each bearing is also specified.

Abstract

Overview

Key topics and technical requirements

Boundary dimensions: Detailed nominal dimensions for single‑row and double‑row tapered roller bearings (see Tables 4–16 in the standard), including bore (d), outside diameter (D), widths (T, B, C), flange height (h), chamfer dimensions (r), contact angle (α) and related envelope dimensions.
Series designations: A three‑symbol system (example: 2AC) covering:
- first symbol - contact angle series (angle ranges),
- second symbol - diameter series (D/d relationship ranges),
- third symbol - width series (width/height relationship ranges).
Flanged outer rings: Flange geometry for specified sizes; additional flange dimensions provided in Annex A.
Normative references and symbols: Uses ISO 492 for GPS and tolerances, ISO 582 for maximum chamfer values, ISO 1132‑1 and ISO 5593 for terms, and ISO 15241 for symbols.
Tables and figures: Comprehensive dimension tables grouped by contact‑angle series and diagrams for single‑row, double‑row, matched pairs and flanged outer ring variants.
Tolerancing and chamfers: Tolerances are those listed in ISO 492; chamfer maximums per ISO 582. Front face chamfers are not tabulated but front corners shall not be sharp.

Practical applications - Who uses SIST ISO 355:2020

Bearing manufacturers - for standardized part geometry, production tooling and interchangeability.
Machine and gearbox designers (OEMs) - to select correct tapered roller bearing sizes, flanged outer rings and to ensure assembly envelope compatibility.
Procurement and specification writers - to reference unambiguous bearing series designations in purchase orders and technical specifications.
Quality, testing and maintenance teams - for inspection limits, replacement compatibility and maintenance planning.
Standards writers and component libraries - to align CAD libraries, bills of materials and part number systems with international practice.

Related standards

ISO 492 - Rolling bearings - Radial bearings - GPS and tolerance values
ISO 582 - Rolling bearings - Chamfer dimensions - Maximum values
ISO 10317 - Bearing designation system (used in combination with ISO 355 series codes)
ISO 1132‑1, ISO 5593, ISO 15241 - Terminology and symbols for rolling bearings

SIST ISO 355:2020 is essential for anyone specifying, manufacturing or engineering with tapered roller bearings to ensure dimensional interchangeability, clear series coding and correct flange geometry. Keywords: ISO 355, tapered roller bearings, boundary dimensions, series designations, flanged outer rings, bearing standards.

Технические детали

SKU: SIST ISO 355:2020

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SIST ISO 355:2020 PDF

Abstract

Overview

Похожие стандарты

Key topics and technical requirements

Practical applications - Who uses SIST ISO 355:2020

Related standards

Технические детали

ISO 355:2007

Rolling bearings — Tapered roller bearings — Boundary dimensions and series designations

SIST ISO 49:2001/Amd 1:2018

Malleable cast iron fittings threaded to ISO 7-1 - Chemical composition of the zinc coating - Adjustment to a…

SIST EN ISO 5821:2025

Resistance welding - Spot welding electrodes - Female electrode caps (ISO 5821:2025)

SIST ISO 1132-1:2002

Rolling bearings -- Tolerances -- Part 1: Terms and definitions

SIST ISO 5593:2023

Rolling bearings - Vocabulary

ISO 15241:2012/Amd 1:2020

Rolling bearings — Symbols for physical quantities — Amendment 1

ISO 10317:2008/Amd 1:2013

Rolling bearings — Tapered roller bearings — Designation system — Amendment 1: Design variant designation and…

ISO 355:2019

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