BETA
Steel discs - Black rubber ring.
- Solid black rubber ring, hardness 85±5 Shore A.
- Pressed and welded steel-discs: electro-zinc plated, white.
- Temperature range: -20°C / +60°C (-4°F / +140°F).
- Hub with: shielded ball bearings; standard roller bearing; nylon (polyamide 6) friction bearing.
![Wheels series B BETA - Wheels with black rubber ring on welded steel discs fitted with ball bearings, roller bearings or nylon friction bearings.](https://www.lagspa.it/sync/foto/B_GAMMA.jpg)
![Silenziosa Silenziosa](/wp-content/themes/mist-child/images/bollini/Icona_07.png)
![](/wp-content/themes/mist-child/images/icons/cuscinetti-a-sfere.png)
Ball bearings
![](/wp-content/themes/mist-child/images/icons/cuscinetti-a-rulli.png)
Roller bearings
![](/wp-content/themes/mist-child/images/icons/boccola-PA-1.png)
PA 6 BUSHES