圈上海文通大华 Washers ▣Plain washer(普通垫圈):Flat,doughnut- shaped part ▣Hardened steel(硬化钢)washers:Used where bolt compression load on clamped part needs to be distributed over a larger area than bolt head or nut provides. Soft washer:Yields in bending rather than effectively distribute the load. ▣Non-metallic(非金属)washers:Used when electrical insulation from part is required. 圈上泽夫道大学 Washers ④ (a)Spitockwasher ▣Lock washers(锁紧垫圈) Used to help prevent spontaneous loosening of standard nuts n >Less preferred to lock nuts. tema-toothwasher ▣Split washer(开口垫圈) >Hardened steel that acts like a spring under nut N its sharp corners tend to dig into (Extemal-tooth washer clamped surfaces ▣Toothed washers(锯齿垫圈) >have turned-up teeth that compress when clamped and dig into the nut and d Internal-extemal toeth part surfaces. w 99 Washers Plain washer (普通垫圈): Flat, doughnutshaped part Hardened steel(硬化钢) washers : Used where bolt compression load on clamped part needs to be distributed over a larger area than bolt head or nut provides. Soft washer : Yields in bending rather than effectively distribute the load. Non-metallic(非金属) washers : Used when electrical insulation from part is required. Lock washers (锁紧垫圈) Used to help prevent spontaneous loosening of standard nuts Less preferred to lock nuts. Split washer (开口垫圈) Hardened steel that acts like a spring under nut its sharp corners tend to dig into clamped surfaces Toothed washers (锯齿垫圈) have turned-up teeth that compress when clamped and dig into the nut and part surfaces. Washers