Reference 70™ 螺栓

REF 70™ 斗提机螺栓

REF 70™ 斗提机畚斗螺栓等级为 ISO 5.8 级,螺栓头一面呈现圆弧形曲面,另一面上带有 4 个对置的凸点,凸点的作用是拧紧螺栓时防止转动。REF 70™ 畚斗螺栓配合大椭圆垫使用时,最适合安装皮带轮直径大于 50 厘米的重工业钢制畚斗。因为这种螺栓有圆弧形的曲面,这种螺栓不适合安装后背平直的塑料畚斗,尤其不适用薄皮带。

Ref70 elevator bolts
Product Features: 
  • 碳钢/304 & 316 不锈钢材料
  • 钢制螺栓 ISO 5.8 级
  • 圆弧形螺栓头,带有 4 个对置的凸点,防止拧紧时转动
  • 公制或英制
  • 螺栓尺寸:M6, M8, M10, M12
Ref70
Size
(mm)
Size
(in.)
Head Diameter
(mm)
Max. Torque
(Nm)
Package Quantity
Package Weight
(kgs)
M6 x 121/4 x 1/21751001.04
M6 x 20*1/4 x 3/41751001.18
M6 x 25*1/4 x 11751001.24
M6 x 301/4 x 1-1/41751001.48
M6 x 401/4 x 1-1/21751001.56
M8 x 205/16 x 3/423101002.08
M8 x 25*5/16 x 123101002.38
M8 x 30*5/16 x 1-1/423101003.54
M8 x 40*5/16 x 1-1/223101002.90
M8 x 505/16 x 223101003.24
M10 x 253/8 x 127181003.94
M10 x 30*3/8 x 1-1/427181004.44
M10 x 40*3/8 x 1-1/227181004.80
M10 x 45*3/8 x 1-3/427181005.08
M10 x 50*3/8 x 227181005.36
M10 x 553/8 x 2-1/427181005.50
M10 x 653/8 x 2-1/227181005.72
M12 x 301/2 x 1-1/435421007.44
M12 x 401/2 x 1-1/235421007.78
M12 x 451/2 x 1-3/435421008.12
M12 x 501/2 x 235421008.44
M12 x 551/2 x 2-1/435421009.08

* Available in stainless steel

大椭圆垫

配合 REF70 螺栓用于重载环境

  • 镀锌或 304 不锈钢
  • 座在 REF70 螺栓头的 4 个凸点上,增加螺栓头的有效接触面积和螺栓的抓握力
  • 要用大椭圆垫,皮带必须有足够的厚度接纳垫圈,以及/或者畚斗螺栓孔必须有圆弧形凹陷
  • 皮带轮直径小于 500 毫米不推荐使用大椭圆垫片
  • 大椭圆垫圈长轴方向平行于运动方向

 

斗提机畚斗螺栓其他五金配件-螺母、垫片、垫圈

不同的螺栓需要相应的五金配件,4B 能提供所有需要的螺栓和相关五金配件。     

需要了解更多斗提机螺栓五金配件规格,请点击下面的链节查看螺栓畚斗产品样本的第5页

More info

Is the installation of Ref70 bolts any different to other elevator bolts?

When using the large Reference 70™ (REF 70™) oval washer with the REF 70™ bolt, the washer should be placed with the widest part across the belt in order to minimize stress on the system as it passes around the curved pulley. 

Note:  the bolt head and oval washer are installed on the back of the belt.  
     
Ref70 installation

Ref70 elevator bolt
Ref70 elevator bolt with small flat washer & hexnut
Ref70 elevator bolt with domed washer