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Complex supplies for industrial companies

VNII NP-231 grease

TU 38.1011220-89

VNII NP-231 is a silicone fluid thickened with DG-100 carbon.

Range of use

The heat-resistant VNII NP-231 grease is used for lubrication of enclosed worm-screw mechanisms, slow-speed roller and friction-type bearings within the temperature range from -60°C to +250°C and at the residual pressure of 666.5 Pa.

Specifications

Index name Norm
Drop point, °C, min.
Penetration at 25°C, 0,1 mm 310-340
Point of break at 20°C, Pa 250-450
Viscosity at 0°C and rate of deformation average gradient 10s-1, Pa•s, max. 50-75
Colloid stability, %, max. 8

 

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