Material
· Iron type
· Copper type
· Stainless steel type
· Oil impregnated bearings (copper, iron)
Main materials
| Type symbol | Oil content
capacity % |
Chemical composition % | Crushing strength kgf/mm2 |
||||||
| Fe | C | Cu | Sn | Pb | Zn | Other | |||
| SBF4118 | 18≥ | Remain | 0.2～0.6 | 5≤ | ー | ー | ー | 3≤ | 28≥ |
| SBK1112 | 12≥ 18＜ |
1≤ | 2≤ | Remain | 8～11 | ー | ー | 0.5≤ | 20≥ |
| SBK1218 | 18≥ | 1≤ | 2≤ | Remain | 8～11 | ー | ー | 0.5≤ | 15≥ |
| Symbol | Mechanical nature | Density g/cm³ |
Chemical composition % |
|||||||||
| Tensile strength kgf/mm² |
Elongation % |
Charpy Impact value kgf･m/cm² |
Fe | C | Cu | Ni | Sn | Cr | Mo | Other total |
||
| SMF1010 | 10≥ | 3≥ | 0.5≥ | 6.2≥ | Remain | ー | ー | ー | ー | ー | ー | 1≤ |
| SMF1015 | 15≥ | 5≥ | 1.0≥ | 6.8≥ | Remain | ー | ー | ー | ー | ー | ー | 1≤ |
| SMF1020 | 20≥ | 5≥ | 1.5≥ | 7.0≥ | Remain | ー | ー | ー | ー | ー | ー | 1≤ |
| SMF4030 | 30≥ | 1≥ | 0.5≥ | 6.4≥ | Remain | 0.2～1.0 | 1～5 | ー | ー | ー | ー | 1≤ |
| SMF4040 | 40≥ | 1≥ | 0.5≥ | 6.6≥ | Remain | 0.2～1.0 | 1～5 | ー | ー | ー | ー | 1≤ |
| SMF4050 | 50≥ | 1≥ | 0.5≥ | 6.8≥ | Remain | 0.2～1.0 | 1～5 | ー | ー | ー | ー | 1≤ |
| SMF5030 | 30≥ | 1≥ | 1.0≥ | 6.6≥ | Remain | 0.8≤ | 0.5～3 | 1～5 | ー | ー | ー | 1≤ |
| SMF5040 | 40≥ | 1≥ | 1.0≥ | 6.8≥ | Remain | 0.8≤ | 0.5～3 | 2～8 | ー | ー | ー | 1≤ |
Restriction on design shape
The following is an example. Please contact us for details.
1. Avoid corners and narrow and long grooves.
● To ensure mold strength and to uniformly fill the powder, avoid Right Angle and attach R.
● Avoid narrow and long grooves, make round grooves.
2. Avoid thin walls, please make round holes if possible.
● Making round holes makes mold making easier, lowering costs.
● Take wall thickness so that powder easily flows.
● Make the wall thickness thicker than 0.8 mm.
● Length should not be more than 2.5 times the diameter.
3. There are constraints on die manufacturing.
● Completely spherical surface is impossible to mold, so attach a flat part.
● Avoid the same dimensions of the gear bottom diameter and the boss diameter (minimum diameter difference of 3 mm is required).
4. Shape that can obtain uniform density and shape that can be drawn out.
● Inverse taper is impossible to form, so it will be machined.
● V-shaped grooves at right angles to the molding direction · Holes are machined, but the bead grooves in the molding direction can be molded.
● Provide a taper on the outer diameter and the inner diameter on the side opposite to the boss portion.
● It is better to machine machined parts with multiple steps.
