OTHER
ISO 4378-4:2009
ISO 4378-4:2009 is an international standard that defines basic symbols for plain bearings. These symbols are used in calculations, design, and quality assurance.
ISO 4378-4:2009 defines basic symbols for use in the field of plain bearings. Additional signs are also defined for use as superscripts and subscripts. The characters employed are drawn from the Latin and Greek alphabets, Arabic numerals and other signs, for example points, commas, horizontal lines or asterisks.
