Language Selection

Products

当前位置：Home page

产品分类导航 >

∮23.1×39 (Type 70)

The crank pin consists of a dowel and a countersunk screw. Its distinguishing feature is that the dowel comprises two wedge-shaped elements, 1 and 2; the inner surfaces of these two wedges are inclined planes, while the outer surface of wedge 2 is a flat plane that closely mates with the bicycle’s bottom bracket spindle. The outer surface of wedge 1 is an arcuate surface that fits snugly against the arcuate surface of the crank pin hole in the bicycle frame. At each end of wedges 1 and 2, a countersunk screw 3 is fastened, so that under the action of these two screws, the inclined surfaces of the two wedges come into close contact and slide axially until the crank is locked in place.

Category:

Product List

Consult Now

Return to list

Detailed Information

　　The crank pin consists of a dowel pin and countersunk screws. Its distinctive feature is that the dowel pin comprises two wedge-shaped elements, 1 and 2; the inner surfaces of these two wedges are inclined planes, while the outer surface of wedge 2 is a flat plane that closely mates with the bicycle’s bottom bracket spindle. The outer surface of wedge 1 is an arcuate surface that fits snugly against the corresponding arcuate surface of the crank pin hole in the bicycle frame. At each end of wedges 1 and 2, a countersunk screw 3 is fastened, so that under the action of these two screws, the inclined surfaces of the two wedges come into close contact and can slide axially until the crank is locked in place.

Previous item

∮20×∮8×49

∮25.1×39 (Type 100)

Next item

Previous item

∮20×∮8×49

Next item

∮25.1×39 (Type 100)

Other products

∮20×∮8×49 (sandblasted)

∮20×∮8×49

∮23.1×39 (Type 70)