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B51-14 (R2019) – Boiler, pressure vessel, and pressure piping code

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CSA C22.2 NO. 62841-2-6:22 – Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-6: Particular requirements for hand-held hammers (Binational standard with UL 62841-2-6)

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CSA C22.2 NO. 62841-2-6:22/A1:24 – Amendment 1:2024 to CSA C22.2 NO. 62841-2-6:22, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-6: Particular requirements for hand-held hammers (Binational standard with UL 62841-2-6)

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CAN/CSA-C22.2 NO. 62841-2-5:16 (R2026) – Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery – Safety – Part 2-5: Particular requirements for hand-held circular saws (Bi-national standard with UL 62841-2-5)

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CAN/CSA-C22.2 NO. 62841-2-5:16 (R2026)/A1:26 – Amendment 1:2026 to CAN/CSA-C22.2 NO. 62841-2-5:16, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery – Safety – Part 2-5: Particular requirements for hand-held circular saws (Bi-national standard with UL 62841-2-5)

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CAN/CSA-C22.2 No. 62841-2-4:15/A1:26 – Amendment 1:2026 (IDT) to CAN/CSA-C22.2 No. 62841-2-4:15, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-4: Particular requirements for hand-held sanders and polishers other than disc type (Bi-national standard with UL 62841-2-4)

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CAN/CSA-C22.2 NO. 62841-2-4:15 (R2025) – Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-4: Particular requirements for hand-held sanders and polishers other than disc type (Bi-national standard with UL 62841-2-4)

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CSA C22.2 NO. 62841-2-3:21/A1:26 – Amendment 1:2026 to CSA C22.2 No. 62841-2-3:21, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-3: Particular requirements for handheld grinders, disc-type polishers and disc-type sanders (Binational standard with UL 62841-2-3)

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CSA C22.2 NO. 62841-2-23:25 – Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery — Safety — Part 2-23: Particular requirements for hand-held die grinders and small rotary tools (Binational standard with IEC 62841-2-23)

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CAN/CSA-C22.2 NO. 62841-2-21:18/A1:26 – Amendment 1:2026 to CAN/CSA-C22.2 No. 62841-2-21:18, Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery – Safety – Part 2-21: Particular requirement for hand-held drain cleaners (Adopted amendment 1:2024 to IEC 62841-2-21)

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ISO 21771:2024

ISO 21771:2024 Cylindrical involute gears and gear pairs – Part 1: Concepts and geometry

CDN $435.00

SKU: 83fed018f588 Categories: , ,

Description

This document specifies the geometric concepts and parameters for cylindrical gears with involute helicoid tooth flanks. Flank modifications are included. The formulae in this document apply to all pressure angles.

It also covers the concepts and parameters for involute cylindrical gear pairs with parallel or crossed axes, and a constant gear ratio. Gear and mating gear in these gear pairs have the same basic rack tooth profile.

Edition

1

Published Date

2024-10-24

Status

PUBLISHED

Pages

159

Language Detail Icon

English

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Abstract

This document specifies the geometric concepts and parameters for cylindrical gears with involute helicoid tooth flanks. Flank modifications are included. The formulae in this document apply to all pressure angles.

It also covers the concepts and parameters for involute cylindrical gear pairs with parallel or crossed axes, and a constant gear ratio. Gear and mating gear in these gear pairs have the same basic rack tooth profile.

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