ASME B107.4-2019 pdf free download.Driving and Spindle Ends for Portable Hand, Impact, Air, and Electric Tools (Percussion Tools Excluded)
This Standard applies to portable power tools for drilling, grinding, polishing, sawing, and driving threaded fasteners, and hand tools fordrivingthreaded fasteners. Othertools notclassed as percussion tools belongin this categoryand may be added by revision or addition through the usual procedure.
This Standard includes dimensions and tolerances for both driving and driven elements where such coordination is important and not established by reference to the pertinent American National Standards. All dimensions are in inches and millimeters.
2 DEFINITIONS percussion tools: hammers, chisels, scalers, tampers, claydiggers, and rockdrills.
Percussion tools are excluded from this Standard. rounding: In this Standard, calculated values are rounded off as follows:
(a) if the next digit after the last digit to be retained is less than 5, the last digit to be retained is not changed
(b) if the next digit after the last digit to be retained is 5 or greater, the last digit to be retained is increased by one tool: as used in this Standard, a portable device, either hand operated or powered by compressed air or electricity, for performing a mechanical operation.
3 REFERENCES
The following is a list of publications referenced in this Standard.
ANSI/ASME B1.1-1989 (R2001), Unified Inch Screw Threads (UN and UNR Thread Form)
ANSI B7.1-2000, Safety Requirements for the Use, Care and Protection of Abrasive Wheels
ANSI B92.1-1996, Involute Splines and Inspection, Inch Version Publisher: American National Standards Institute (ANSI), 25 West 43rd Street, New York, NY 10036 (www.ansi.org)
ISO 1174-1:2011, Assemblytools forscrews and nuts — Drivingsquares — Part1: Drivingsquares forhand sockettools
ISO 1174-2:1996,Assemblytools forscrewsandnuts —Drivingsquares —Part2: Drivingsquares forpowersockettools Publisher: International Organization for Standardization (ISO), Central Secretariat, Chemin de Blandonnet 8, Case Postale 401, 1214 Vernier, Geneva, Switzerland (www.iso.org)
4 ISO COMPATIBILITY
Italicization and bold type indicate ISO compatibility.
EXAMPLE: (38.214)
5 GAGE USE AND DESIGN
The illustrations shown herein are descriptive, not restrictive, and are not intended to preclude the manufacture of products or gages that are otherwise in accordance with this Standard. Manufacturers mayuse gages with tighter dimensions or tolerances than shown herein to ensure productacceptance. TolerancesongagedimensionswithintheStandardrepresentnewmanufacturedorpurchasedgagesizes.Theextreme size for all limit (GO and NO GO) gages shall not exceed the extreme limits ofproducts specified within the Standard. All variations (manufacturing tolerance, calibration error, wear allowance, etc.) in the gages, whatever their cause or purpose, shall bring these gages within the extreme limits of the gage size specified within this Standard. Thus, a gage that represents a minimum limit may be larger, but never smaller, than the minimum specified for the product standard; likewise, the gage that represents a maximum limit may be smaller, but never larger, than the maximum size specified for the product standard.
6 SPINDLES FOR CHUCKS
See Tables 6-1 through 6-4.
7 HEXAGONAL DRIVES
See Tables 7-1 and 7-2.
8 SQUARE DRIVES
See Figures 8-1 through 8-3 and Tables 8-1 through 8-7.
9 SPLINE DRIVES
See Tables 9-1 through 9-4.
10 ABRASION TOOL SPINDLES
See Tables 10-1 through 10-4.
11 CIRCULAR SAW ARBORS
See Table 11-1.ASME B107.4 pdf download.ASME B107.4-2019 pdf free download
