Lubricant is often more decisive than the load rating of a bearing
Limits of comparing rolling bearings by load rating alone:
Limited informative value: Many applications compare rolling bearings solely on the basis of load ratings. Although this seems obvious, it often falls short in practice.
Standardised simplification: Load ratings are calculated according to defined standards that usually only take basic geometric parameters into account. This makes them easy to compare, but they only reflect actual performance in real operation to a limited extent.
Influence of assumptions: Different design approaches and simplified assumptions (e.g. regarding raceway conformity or material quality) can lead to significant deviations in the calculated rating life.
Relevance of operating conditions: In addition to the pure load rating, the interaction of geometry, operating conditions and application-specific influences is decisive.
Our approach: Together with you, we look at the application holistically in order to go beyond mere catalogue selection. This allows potential to be exploited in a targeted manner – for a robust design, longer service life and optimised running behaviour of your bearing arrangement.
A lubricant for demanding applications:
• Usable over a wide temperature range
• High oxidation resistance and thermal resilience
• Excellent load-carrying capacity under extreme conditions
• Minimises vibrations and reliably absorbs shock loads
• Insensitive to moisture and environmental influences
• Reliable protection against rust and material corrosion
• Forms a stable lubricant film
• Optimally suited for use in automatic lubrication systems
KIS Grease HDT K400 is characterised by excellent mechanical-dynamic stability and thermal resilience.
The pronounced additive package guarantees reliable corrosion protection and a significant reduction in wear in the tribological contact – even under the influence of water, salt water and atmospheric weathering. Thanks to its high oxidation stability, extended relubrication intervals and maximum service lives are achieved.
The lubricant is a light brown, paste-like grease with a mild odour.
Rolling bearings & slewing rings:
• highly loaded, slow- to medium-speed rolling bearings and slewing rings at high temperatures
• paper machines with high temperature and water exposure
• bearing arrangements with high shock loads, e.g. presses for the production of wood-based panels or pellets
• support and guide roller bearings in conveyor systems, dryers and ovens
Plain bearings:
• plain bearings exposed to high temperatures
Guides and spindle drives:
• thermally and mechanically highly loaded linear guides, screw drives and spindles
Pins, levers, joints and cam discs:
• under high thermal and/or mechanical loads and weather influences
Gear rims and racks
Assembly grease against tribocorrosion
KIS Grease HDT K400:
• compatible with common metals, plastics, paints and mineral-oil-resistant seals
• do not mix with other greases: if mixing is necessary, please contact KIS.
• can be applied with standard grease guns and in centralised lubrication systems
| Value | Standard | |
|---|---|---|
| Operating temperature range | -20 °C to +180 °C | – |
| NLGI class | 1-2 | DIN 51818 |
| Density at +15 °C | 0.95 g/cm³ | DIN 51757 |
| Base oil viscosity at +40 °C | 460 mm²/s | DIN 51562-1 |
| Dropping point | > +260 °C | DIN ISO 2176 |
| Worked penetration | 295 – 320 1/10 mm | DIN ISO 2137 |
| Four-ball weld load | 3600 N | DIN 51350 |
| Oil separation at +40 °C / 18 h | < 0.5 % | DIN 51817 |
| SRV test | T = +180 °C, F = 200 N | DIN 51834 |
| Coefficient of friction µ min. µ max. |
0.08 0.10 |
– |
| Wear behaviour ball disc |
0.40 mm < 1.0 µm |
– |
| Corrosion protection on steel (with 3 % NaCl) | 0 – 0 corrosion degree | DIN 51802 |
| Corrosive effect on copper at +100 °C | 1 corrosion degree | DIN 51811 |
| Speed factor (n x dm) | approx. 400,000 (at 100 °C) | – |
