1 Scope
This standard specifies classification, type, parameters, technical requirements, test methods, inspection rules, marking, packing and storage of LT and LTZ pin coupling with elastic sleeves (hereinafter referred to as "coupling").
For the purposes of this standard, the said gear coupling is applicable to coupling the transmission shafting of two coaxial lines, and functions as two-shaft relative displacement compensation and general vibration reduction. Its working temperature: -20℃~+70℃ and transmission nominal torque 6.3N•m~16000N•m.
2 Normative References
The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. At time of publication, the editions indicated were valid. All the standards will be revised, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of the following standards are applicable.
GB/T 93-1987 Single Coil Spring Lock Washers, Normal Type
GB 191-2000 Packaging-Pictorial Marking for Handling of Goods (eqv ISO780: 1997)
GB/T 528-1998 Rubber,Vulcamized or Thermoplastic--Determination of Tensile Stress-strain Properties (eqv ISO37: 1994)
GB/T 531-1999 Rubber-Determination of Indentation Hardness by Means of Pocket Hardness Meters (idt ISO 7619: 1986)
GB/T 700-1988 Carbon Structural Steels
GB/T 1681-1991 Rubber-Determination of Rebound Resilience of Vulcanizates (eqv ISO 4662: 1986)
GB/T 1680-1998 Rubber Vulcanized-Determination of Abrasion Resistance (Akron Machine)
GB/T 1693-1981 Vulcanized Rubber; Determination of Dielectric Constant and Dielectric Loss Angular Tangent Value
GB/T 3098.2-2000 Mechanical Properties of Fasteners-Nuts-Coarse Thread (idt ISO 898-2: 1992)
GB/T 3512-2001 Rubber Vulcanized or Thermoplastic--Accelerated Ageing and Heat Resistance Tests--Air-oven Method (eqv ISO 188: 1998)
GB/T 3852-1997 Types and Dimensions for Coupling Bores and their Connection (neq ISO/R 775: 1969)
GB/T 4879-1999 Dustproof Packaging
GB/T 6388-1986 Transport Package Shipping Mark
GB/T 6557-1999 Mechanical Vibration--Methods and Criteria for the Mechanical Balancing of Flexible Rotors (idt ISO 11342: 1998)
GB/T 11352-1989 Carbon Steel Castings for General Engineering Purpose (neq ISO 3755: 1975)
GB/T 12458-1990 Mechanical Coupling--Classification
GB/T 13384-1992 General Specifications for Packing of Mechanical and Electrical Product
3 Classification
3.1 Type
The coupling is divided into two types in Table 1.
3.2 Type and marking
Coupling type and marking are according to the requirements of GB/T 12458.
Foreword I
1 Scope
2 Normative References
3 Classification
4 Structural Style, Basic Parameter and Principal Dimension
5 Technical Requirements
6 Test Methods
7 Inspection Rules
8 Marking, Packing and Storage
