BS PD ISO/TS 6336-4:2019 describes a procedure for the calculation of the tooth flank fracture load capacity of cylindrical spur and helical gears with external teeth.Cross References:ISO 6336-2ISO 21771ISO 6336-1ISO 1122-1ISO 1328-1ISO/TS 21432ISO 6336-5ISO 53ISO 6507 (all parts)ISO 18265All current amendments available at time of purchase are included with the purchase of this document.