GB/T 849-1988
ActiveWashers with ball face
球面垫圈
Application Summary AI generated
GB/T 849-1988 specifies the dimensions, technical requirements, and marking for washers with a spherical (ball) face, designed to compensate for angular misalignment in bolted connections. These washers are primarily used in mechanical assemblies and heavy machinery where a bolt or nut must seat securely against a non-parallel surface, such as in structural steel joints or equipment with tapered flanges. The standard ensures consistent load distribution and prevents fastener loosening under dynamic or uneven loading conditions.
Related Standards
GB/T 9074.20-2004
Cross recessed hexagon head tapping screw with indentation and washer assemblies with plain washers
GB/T 62.2-2004
Wing nuts--Square wing
GB/T 62.3-2004
Wing nuts--Pressing wing
GB/T 9074.5-2004
Cross recessed small pan head screw andwasher assemblies with plain washers
GB/T 62.1-2004
Wing nuts--Round wing
GB/T 62.4-2004
Wing nuts--Die-casting wing
GB/T 3098.20-2004
Mechanical properties of fasteners--Wing nuts with specified proof torque
GB/T 3098.19-2004
Mechanical properties of fasteners--Blind rivets with break pull mandrel
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.