MISUMI Standard Straight Type SKH51 Materials Guide Brushs with or
without Oil Grooves for Plastic Injection Mold
Description
The guide bush is a kind of mold parts, which is used together with
the guide pins to guide and ensure the accuracy of the movement. In
the inner cylindrical surface usually has oil grooves, the quantity
depend on the length of the guide bush.
Because of the wear resistance of SKD11 and SKH51, they are chosen
as the production materials of guide bushes usually.
Quick Details
Between the bush and the leader pins, its generally require little
fit clearance, less than 0.05mm.
| materials | Die steel | Size | standard or customized |
| hardness | HRC 56~62° | Roughness | Ra 0.6~1.0 |
| tolerance | 0.001mm | Type | Straight |
Processing
As the guide bush and guide pins with the size of the high
precision requirements, and the inner cylinder and the outer
circumference should be coaxial, therefore when manufacture the
guide bush, it need to grinding in the inner cylinder first, and
then install the mandrel grinding cylindrical surface.
Standard Size
we have the following standard sizes of leader bushing in stock,
generally can be shipped within 3 working days, if customized,
delivery time is generally 15-20 days.
| Size | Dn5/mm | d/mm | L/mm |
| φ12 | 12 | +0.020 +0.012 | 8 | 10 | 13 | 16 | 20 | | | |
| φ14 | 14 | 10 | 10 | 13 | 16 | 20 | 25 | | |
| φ18 | 18 | 13 | | 13 | 16 | 20 | 25 | | |
| φ22 | 22 | +0.024 +0.015 | 16 | | 13 | 16 | 20 | 25 | 30 | |
| φ25 | 25 | 20 | | | | 20 | 25 | 30 | |
| φ32 | 32 | +0.028 +0.017 | 25 | | | | | 25 | 30 | 35 |
Packing and Shipping
The guide bush are packaged with plastic bags with rust preventing
oil, customized package is welcome.
About the shipping, all the well-known express companies and ocean
shipping can be selected, but in remote areas, we can only use EMS.
