Material bearing applications
Rings and rolling elements with material
Under normal circumstances, wheel precision bearing rolling with the overall hardening carbon chromium bearing steel. Grades or GCr15SiMn GCr15 steel; turntable bearing ring surface hardened steel is used, when the user no special requirements, generally used 50Mn steel, but sometimes in order to meet the needs of some of the special applications of the host, but also according to the user's selection of specific conditions of use of other brands of hardened steel surface.
Cage materials
Wheel bearings with cage integral structural form, segmented, such as isolation block. Which monolithic and segmented cage with 20 steel or ZL102 cast aluminum alloy. 1010 block isolation polyamide resin, ZL102 aluminum casting and other manufacturing. In recent years, with the development of industrial materials are nylon GRPA66.25 segmented cage design to application.
Seal materials
Wheel Slewing bearing oil seal materials used with NBR rubber. Rings and blank material supply status code as defined in Table, the table, "T", said ferrule blank as quenched state supply, "Z", said ferrule blank to normalizing the status of supplies.
Precision bearings according to ISO grading standards are divided into: P0, P6, P5, P4, P2. Rank higher in turn, where P0 is the general accuracy, other grades are precision level. Of course, different classification standards, different types of bearings, their classification method somewhat different, but the meaning is to the. The use of performance requirements of precision bearings rotating body with high runout accuracy, high-speed rotation and small changes in friction and friction.
没有评论:
发表评论