浮动大头(如图所示)是由带有尾梢的本体1、浮 动 套2、垫圈4及 套盖3所构成。零件1、2、4是由合金钢制成。其 淬火後的硬度应为R0=55～60。工作表面须经研磨而放滚珠的槽必须抛光。 衬套里3内端面的震动量不应该超 过0.05公厘。 衬垫7紧紧地嵌在衬套2上,以防尘 埃和杂物进入夹 Floating bulk (as shown) is composed of a body with a tail tip 1, a floating sleeve 2, a washer 4 and a cover 3. Parts 1, 2, 4 are made of alloy steel. The hardness after quenching should be R0 = 55 ~ 60. Work surfaces must be polished and put the ball groove must be polished. The amount of vibration in the inner face of the bushing 3 should not exceed 0.05 mm. The gasket 7 is tightly fitted to the bushing 2 to prevent dust and debris from entering the clamp