double helix

double helix, Total:84 items.

The international standard classification for "double helix" includes: Hand-operated tools , Plants and equipment for the food industry .

The Chinese standard classification for "double helix" includes: Sugar producing machinery , Hand tool , Grain and oil/fat processing machinery , Pipe fittings, clamps and seals .

工业和信息化部

JB/T 13391-2018 Double helix rotor flowmeter

Professional Standard - Light Industry

QB/T 2564.6-2002 Screwdrivers - Spiral ratchet screwdriver
QB/T 1849-1993 Double Helix Beet Continuous Diffusers

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 26891-2011 Grain and oil machinery - Twin-screw press

Group Standards of the People's Republic of China

T/ZZB 2527-2021 Intelligent double rotary web-to-sheet cutting machine
T/QGCML 4634-2024 Stainless steel reinforced double-rib spiral welded pipe for underground coal mines
T/CAMT 20-2023 Large diameter double-sided submerged arc welded spiral steel pipe

Professional Standard - Aviation

HB 7528-1997 Symmetrical Tee Pipe Joint with Double Swivel Nuts
HB 7531-1997 Symmetrical Four-way Pipe Connector with Double Swivel Nuts
HB 7527-1997 Unsymmetrical Tee Pipe Joint with Double Swivel Nuts
HB 7530-1997 Asymmetrical Four-way Pipe Connector with Double Swivel Nuts

Professional Standard - Post and Telecommunication

YD/T 206.16-1997 Iron Pieces for Overhead Communication Lines - Guy Double Helixes

Hebei Provincial Standard of the People's Republic of China

DB13/T 1650-2012 Technical requirements for double-sided submerged arc spiral welded pipe unit

Professional Standard - Military and Civilian Products

WJ 720-2000 Studs for unthreaded hole of aluminum alloy body - Studs for repair

Japanese Industrial Standards Committee (JISC)

JIS B 8322:1995 Double suction volute pumps
JIS B 8322:2003 Double suction volute pumps
JIS B 8322 AMD 1:2013 Double suction volute pumps (Amendment 1)

Society of Automotive Engineers (SAE)

SAE AS91D-2013 Propeller Shaft Ends, Dual Rotation (Propeller Supplied Bearing)
SAE AS91A-1948 PROPELLER SHAFT ENDS, DUAL ROTATION (PROPELLER SUPPLIED BEARING)
SAE AS91C-2006 PROPELLER SHAFT ENDS, DUAL ROTATION (PROPELLER SUPPLIED BEARING)
SAE ARP375-1948 PROPELLER SHAFT ENDS, DUAL ROTATION (PROPELLER SUPPLIED BEARING)
SAE ARP375C-2006 PROPELLER SHAFT ENDS, DUAL ROTATION (PROPELLER SUPPLIED BEARING)
SAE AS91B-1950 PROPELLER SHAFT ENDS, DUAL ROTATION (PROPELLER SUPPLIED BEARING)
SAE AS91-1943 PROPELLER SHAFT ENDS, DUAL ROTATION (Propeller Supplied Bearing)
SAE ARP355-1995 TERMINOLOGY OF DUAL, AND COAXIAL COUNTER-ROTATING PROPELLERS
SAE ARP238A-2006 Propeller Control Clearance - Dual Rotation or Double Acting System Single Rotation Propeller Shaft Reciprocating Engines
SAE AS178-1995 Two-Speed Propeller Reduction Gear Control
SAE ARP238A-1950 (Noncurrent)Propeller Control Clearance-Dual Rotation or Double Acting System Single Rotation Propeller Shaft Reciprocating Engines Reaffirmed Non-Current November 2001
SAE AIR26A-2012 Number 70-90, 70L-90, 80-100, and 80L-100 Propeller Shaft Ends Dual Rotation (Propeller Supplied Bearing)
SAE AIR26-2011 NUMBER 70-90, 70L-90, 80-100 AND 80L-100 PROPELLER SHAFT ENDS DUAL ROTATION (PROPELLER SUPPLIED BEARING)
SAE AIR18-1947 PROPELLER SHAFT ENDS - DUAL ROTATION (ENGINE SUPPLIED BEARING)
SAE AIR18A-2012 Propeller Shaft Ends - Dual Rotation (Engine Supplied Bearing)
SAE AS92B-1949 Cones, Front, Propeller Hub

SAE - SAE International

SAE ARP375B-1950 PROPELLER SHAFT ENDS@ DUAL ROTATION (PROPELLER SUPPLIED BEARING)
SAE ARP375C-1954 Propeller Shaft Ends@ Dual Rotation (Propeller Supplied Bearing)
SAE ARP375A-1949 PROPELLER SHAFT ENDS@ DUAL ROTATION (PROPELLER SUPPLIED BEARING)
SAE ARP375C-1973 Propeller Shaft Ends@ Dual Rotation (Propeller Supplied Bearing)
SAE ARP355B-2013 Terminology of Dual and Coaxial Counter-Rotating Propellers
SAE AS42-2004 CAP@ THREAD PROTECTOR - SINGLE AND DUAL PROPELLER SHAFTS
SAE ARP238-1950 Propeller Control Clearance-Dual Rotation or Double Acting System Single Rotation Propeller Shaft Reciprocating Engines
SAE ARP238B-2013 Propeller Control Clearance - Dual Rotation or Double Acting System Single Rotation Propeller Shaft Reciprocating Engines
SAE ARP238A-1973 Propeller Control Clearance-Dual Rotation or Double Acting System Single Rotation Propeller Shaft Reciprocating Engines
SAE ARP355A-2004 Terminology of Dual@ and Coaxial Counter-Rotating Propellers
SAE AS170-2004 CAP@ THREAD PROTECTOR (INBOARD) - DUAL PROPELLER SHAFTS
SAE ARP355-1946 Terminology of Dual@ and Coaxial Counter-Rotating Propellers
SAE AS178-1945 Two-Speed Propeller Reduction Gear Control
SAE AIR18B-2018 Propeller Shaft Ends - Dual Rotation (Engine Supplied Bearing)
SAE AIR18A-1996 Propeller Shaft Ends - Dual Rotation (Engine Supplied Bearing)
SAE AIR26A-1996 Number 70-90@ 70L-90@ 80-100@ and 80L-100 Propeller Shaft Ends Dual Rotation (Propeller Supplied Bearing)
SAE AIR26B-2018 Number 70-90@ 70L-90@ 80-100@ and 80L-100 Propeller Shaft Ends Dual Rotation (Propeller Supplied Bearing)
SAE AS91C-1954 Propeller Shaft Ends@ Dual Rotation (Propeller Supplied Bearing) (Reaffirmed Noncurrent May 2006)
SAE AS92C-2015 Cones@ Front@ Propeller Hub

U.S. Air Force

AIR FORCE AN5026 VALID NOTICE 1-1970 CAP-INBOARD DUAL PROPELLER SHAFT THREAD
AIR FORCE AN5026-1947 CAP-INBOARD DUAL PROPELLER SHAFT THREAD

American Gear Manufacturers Association

AGMA 940-A09-2009 Double Helical Epicyclic Gear Units

German Institute for Standardization

DIN 835:1972 Studs - Metal end 2 d
DIN 835 Studs - Metal end 2 d
DIN 939:1995 Studs - Metal end 1,25 d
DIN 938:2012 Studs - Metal end 1 d
DIN 835:1995 Studs - Metal end 2 d
DIN 835:2010 Studs - Metal end 2 d
DIN 940:1995 Studs - Metal end 2,5 d
DIN 938:1995 Studs - Metal end 1 d
DIN 938:1972 Studs - Metal end 1 d
DIN 940:2010 Studs - Metal end 2,5 d
DIN 82004:1972 Turnbuckles with Oval Eyes, Double Lugs and Round Eyes

AGMA - American Gear Manufacturers Association

940-A09-2009 Double Helical Epicyclic Gear Units

IN-BIS

IS 6755-1980 Specification for double coil spiral spring washers

American Society of Mechanical Engineers (ASME)

ASME Y14.7.1-1971 Gear drawing standards - Part 1: For Spur, helical, double helical and rack
ASME Y14.7.1-1971(R1998) Gear Drawing Standards-Parts 1: For Spur, Helical, Double Helical and Rack
ASME B18.21.3-2008(R2023) Double Coil Helical Spring Lock Washers for Wood Structures

Korean Agency for Technology and Standards (KATS)

KS B ISO 10899:2013 High-speed steel two-flute twist drills－Technical specifications
KS B ISO 10899:2005 High-speed steel two-flute twist drills-Technical specifications

International Organization for Standardization (ISO)

ISO 10899:1996 High-speed steel two-flute twist drills - Technical specifications

National Aeronautics and Space Administration (NASA)

NASA-TR-D-747-1942 Wind-tunnel tests of four - and six-blade single - and dual-rotating tractor propellers

PL-PKN

PN M82163-1960 Studs semi-precises lenght of the metal end l,25d

Spanish Association for Standardization (UNE)

UNE 68-011-1990 Specifications for double helical spring latches for agricultural equipment

GSO

GSO ISO 10899:2015 High-speed steel two-flute twist drills -- Technical specifications

CZ-CSN

CSN 24 4123-1952 Clamping of workpieces. Revolving indexing head, two-stand, with worm gear drive

VE-FONDONORMA

NORVEN 5-5-1965 Technical drawings of spiral springs and conical spiral springs

RU-GOST R

GOST 20572-1988 Two-screw pumps and pump units. Types and basic parameters
GOST 11906-1977 Spiral bevel and hypoid gear-shaping cutter heads. Specifications

AT-ON

ONORM S 4626-1979 Gymnastic equipment; Lattice ladders; double, triple

SE-SIS

SIS SMS 1519-1962 Spin screws, B-screws and rotations