MRS-10D Fully Automatic Four-ball Friction Testing Machine
INDUTECSA · SKU indutecsa-MRS-10D
Microcomputer-controlled four-ball friction machine with fully automatic hydraulic loading via a servo-controlled hydrostatic cylinder that applies force with no impact or pulsation. It evaluates the load-carrying capacity of lubricating oils and greases — maximum non-seizure load (PB), weld load (PD) and wear index (ZMZ) — and supports extended wear-resistance testing. The scar diameter is read either through a microscope or by automatic capture using imaging software.
Technical specifications
| category | Tribology — friction and wear |
| standards | JB/T 9395-2017 |
| zero drift | ±0.2% of nominal force in 30 min |
| force range | 50–10,000 N |
| load holding | 30 min with maximum variation of ±1% of nominal force |
| loading method | fully automatic hydraulic |
| working conditions | 10–35 °C, relative humidity up to 80% and maximum noise of 75 dB |
| force repeatability | 0.8% |
| friction force error | ±0.8% |
| relative force error | ±0.8% above 4% of nominal force |
| maximum spindle speed | 3000 rpm |
| force system resolution | 1 N |
| friction force resolution | 1 N |
| spindle-piston coaxiality | 0.150 mm |
| force resolution threshold | 0.05% of nominal force |
| spindle cone radial runout | 0.010 mm |
| mounted balls radial runout | 0.015 mm |
| spindle-piston perpendicularity | 0.030 mm |
Specifications subject to confirmation in the formal quote.
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