Below are answers to the most frequently asked questions and answers about the materials used in PM's precision linear guides and linear slides.
The anti-friction guideways (RSD, RSDE, RNG, N/O, M/V) are made of tool steel 1.2842 or bearing steel 1.3505, hardened between 58 and 62 HRC. These high hardness values offer the best wear-resistance over the lifespan. Stainless steel variants are also available (see next question).
| Type | Material | Hardness HRC |
|---|---|---|
| RSD | 1.3505 / 1.2842 | 58-62 |
| RSDE | 1.3505 / 1.2842 | 58-62 |
| RNG | 1.2842 | 58-62 |
| N/O | 1.3505 / 1.2842 | 58-62 |
| M/V | 1.2842 | 58-62 |
The stainless steel guides and rolling elements are made of 1.4034 or 1.4112, hardened between 54 and 57 HRC.
|
Cage type |
Material |
|---|---|
|
AA |
1.4301 |
|
AL |
Aluminium |
|
KZR |
POM |
|
KKLK |
POM |
|
JJ |
Brass |
|
KRE |
POM |
|
KREV |
PEEK |
|
HW |
Aluminium* |
* Needle roller cage type HW are optionally available in steel or brass cage body.
Cylindrical roller, ball and needle rollers are made from bearing steel 1.3505
Cage for anti-cage creep linear guides: material POM is used for cage type KRE and PEEK is used for cage type KREV.
There are cages available for vacuum and ultra-high vacuum applications. Please contact us for more information about these products.
|
Type |
Material |
Hardness HRC / Finishing |
|---|---|---|
|
RT |
Steel |
Black oxide |
|
RTA |
Aluminium |
Clear anodised |
|
RTNG |
Steel | Back oxide |
|
RTS |
Steel |
Black oxide |
|
PMM |
1.4034 |
54-57 |
|
PMMR |
1.4034 |
54-57 |
|
MSR |
1.4034 |
54-57 |
Yes, we offer anti-friction guides and slides in ceramic materials for non-magnetic or ultra-high vacuum environments. The available ceramics used are:
|
Type |
Material |
|---|---|
|
Silicon nitride |
Si3N4 |
|
Aluminium oxide |
Al2O3 |
|
Zirconium dioxide |
ZrO2 |
For the cage material, we offer stainless steel, POM, PEEK.
For more information about ceramic linear guides, please take a look at our product page.
