Jis b 1702 standard pdf

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jis b 1702 standard pdf

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jis b 1702 standard pdf

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I am hoping for some specific numbers that are apparently resident in this standard, with respect to the accuracy of manufactured gears that we are buying from Misumi. I'll ask Misumi in any case, but I was hoping to get independent info as well. My specific interest is in knowing the bore concentricity to pitch circle diameter tolerance I thinkessentially the runout spec.

If any of you "gear guys" have any info you can provide, that would be greatly appreciated. Tags for this Thread gearinfojismisumispecific.In the above table, W and W' are the tolerance units defined as:. Table expresses the formula of the special dual lead hob.

The intent of Figure is to indicate that the worm tooth thickness is progressively bigger towards the right end. Thus, it is convenient to adjust backlash by simply moving the duplex worm in the axial direction. As designers, we desire them to meet various demands: 1. Minimum size.

jis b 1702 standard pdf

Maximum power capability. Minimum noise silent operation. To meet various levels of these demands requires appropriate degrees of gear accuracy.

This involves several gear features. This specification describes 9 grades of gear accuracy - grouped from 0 through 8 - and four types of Figure is an example of pitch errors derived from data pitch errors: measurements made with a dial indicator on a 15 tooth gear. Single pitch error. Pitch differences were measured between adjacent teeth and are Pitch variation error. From that plot, single pitch, pitch variation Accumulated pitch error. Normal pitch error. Single pitch error, pitch variation and accumulated pitch errors are closely related with each other.

Single Pitch Error fpt The deviation between actual measured pitch value between any adjacent tooth surface and theoretical circular pitch. Pitch Variation Error fpu Actual pitch variation between any two adjacent teeth.

jis b 1702 standard pdf

In the ideal case, the pitch variation error will be zero. Accumulated Pitch Error Fp Difference between theoretical summation over any number of teeth interval, and summation of actual pitch measurement over the same interval. Normal Pitch Error fpb It is the difference between theoretical normal pitch and its actual measured value.

The major element to influence the pitch errors is the runout of gear flank groove. Pitch Variation Error. The measured band is the actual effective working Table presents the surface of the gear. However, the tooth modification area is not allowable tooth profile, runout considered as part of profile error. This error defines the runout of the pitch circle.

It is the error Outside Diameter in radial position of the teeth. Most often it is measured by Runout and Lateral Runout indicating the position of a pin or ball inserted in each tooth To produce a high precision space around the gear and taking the largest difference. Two criteria with a master gear on a variable center distance fixture, which are very important: records the change in the center distance as the measure of 1.

Outside diameter OD teeth or pitch circle runout. Runout causes a number of runout. The source of this error is 2. Lateral side face runout. Generally, the Lead error is the deviation of the actual advance of the tooth permissible runout error is profile from the ideal value or position.

Lead error results in related to the gear size. Table poor tooth contact, particularly concentrating contact to the tip presents equations for area.

Modifications, such as tooth crowning and relieving can allowable values of OD runout alleviate this error to some degree. It also groups bevel gears into 9 grades, from 0 The equations of allowable pitch variations are in Table How to purchase: Ask for Japanese Standards Association. How to purchase publications and standards. Dry cut by a hob Research about a development study for the environmental response type gear processing technology.

Dry cut Research about a development study for the environmental response type gear processing technology. Cylindrical gears — Information to be given to the manufacturer by the purchaser in order to obtain the gear required. Straight bevelg gears-information to be given to the manufacturer by the purchaser in order to obtain the gear required.

Cylindrical gears for general and heavy engineering -Part 1: Standard basic rack tooth profile. Cylindrical gears — ISO system of accuracy -Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth. Cylindrical gears — ISO system of accuracy -Part 2: Definitions and allowable values of deviations relevant to radial composite deviations and runout information.

Straight bevel gear for general engineering and heavy engineering -Part 2:Modules and diametral pitches.

Spur Gear Terminology & Formulas - Pitch Diameter, Pressure Angle, and More

Acceptance code for gears — Determination of airborne sound power levels emitted gear units. Acceptance code for gears — Part 2: Determination of mechanical vibrations of gear units during acceptance testing.

Calculation of load capacity of spur and helical gears — Strength and quality of materials. Evaluation of instruments for the measurement of individual gears-Part1:Method by gear shape. Evaluation of instruments for the measurement of individual gears-Part2:Tooth form measurement.

JIS B 1702-1

Cylindrical gears — Code of inspection practice — Inspection of corresponding flanks of gear teeth. Cylindrical gears — Code of inspection practice — Inspection related to radial composite deviations, runout, tooth thickness and backlash. Cylindrical gears — ISO system of accuracy — Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth. Cylindrical gears — ISO system of accuracy — Part 2: Definitions and allowable values of deviations relevant to radial composite deviations and runout information.

Straight bevel gears — Information to be given to the manufacturer by the purchaser in order to obtain the gear required. Solid mono block gear hobs with tenon drive or axial keyway, 0,5 to 40 module — Nominal dimensions. Calculation of load capacity of spur and helical gears — Part 1: Basic principles, introduction and general influence factors.

Calculation of load capacity of spur and helical gears — Part 2: Calculation of surface durability pitting. Calculation of load capacity of spur and helical gears — Part 3: Calculation of tooth bending strength.Active, Most Current.

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Means, Inc. Look Inside. Complete Document. Cylindrical gears-ISO system of flank tolerance classification-Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth.

Detail Summary View all details. Price USD. Single User. In Stock. Need it fast? Ask for rush delivery. Most backordered items can be rushed in from the publisher in as little as 24 hours. Some rush fees may apply. Add to Cart. View Full Details and Buy. Complementary Documents and Links:. This Standard establishes a tolerance classification system relevant to manufacturing and conformity assessment of tooth flanks of individual cylindrical involute gears.

It specifies definitions for gear flank tolerance terms, the structure of the flank tolerance class system, and allowable values. Eleven flank tolerance classes are defined, numbered 1 to Formulae for tolerances are provided in 6.

Surface texture is not considered in this Standard.In the above table, W and W' are the tolerance units defined as:. Table expresses the formula of the special dual lead hob.

The intent of Figure is to indicate that the worm tooth thickness is progressively bigger towards the right end. Thus, it is convenient to adjust backlash by simply moving the duplex worm in the axial direction. As designers, we desire them to meet various demands: 1. Minimum size. Maximum power capability. Minimum noise silent operation. To meet various levels of these demands requires appropriate degrees of gear accuracy.

This involves several gear features. This specification describes 9 grades of gear accuracy - grouped from 0 through 8 - and four types of Figure is an example of pitch errors derived from data pitch errors: measurements made with a dial indicator on a 15 tooth gear.

Single pitch error. Pitch differences were measured between adjacent teeth and are Pitch variation error. From that plot, single pitch, pitch variation Accumulated pitch error. Normal pitch error. Single pitch error, pitch variation and accumulated pitch errors are closely related with each other.

Single Pitch Error fpt The deviation between actual measured pitch value between any adjacent tooth surface and theoretical circular pitch. Pitch Variation Error fpu Actual pitch variation between any two adjacent teeth. In the ideal case, the pitch variation error will be zero. Accumulated Pitch Error Fp Difference between theoretical summation over any number of teeth interval, and summation of actual pitch measurement over the same interval.

Normal Pitch Error fpb It is the difference between theoretical normal pitch and its actual measured value. The major element to influence the pitch errors is the runout of gear flank groove. Pitch Variation Error. The measured band is the actual effective working Table presents the surface of the gear. However, the tooth modification area is not allowable tooth profile, runout considered as part of profile error.

This error defines the runout of the pitch circle. It is the error Your Alert Profile lists the documents that will be monitored. If the document is revised or amended, you will be notified by email. You may delete a document from your Alert Profile at any time.

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JIS B 1702

PDF Price. Not a Member? This standard is not included in any packages. We have no document history for this standard. We have no amendments or corrections for this standard. Request Proposal Price. Proceed to Checkout Continue Shopping. Useful Links.Your Alert Profile lists the documents that will be monitored. If the document is revised or amended, you will be notified by email. You may delete a document from your Alert Profile at any time. This standard is also available to be included in Standards Subscriptions.

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As the voice of the U. Most recent. Available for Subscriptions. Add to Alert PDF. Please first log in with a verified email before subscribing to alerts. Please first verify your email before subscribing to alerts. Already Subscribed to this document. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.

PDF Price. Not a Member? This standard is not included in any packages. We have no amendments or corrections for this standard.

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