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MOLYKOTE 7348 1 kg, high-temperature silicone bearing grease, NLGI 2, −20 °C to +230 °C

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Availability: On order
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Price: €239.95 239.95
Net price: €195.08
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Vendor: Molykote
Product code: 1500776

Description

MOLYKOTE 7348 Silicone Grease 1 kg is a high-temperature NLGI 2 silicone grease for rolling-element bearings and applications exposed to elevated heat. It provides long-term lubrication, oxidation and water resistance, and low volatility in demanding process conditions.

Benefits and unique features

  • Long-term lubrication at high temperatures (up to +230 °C, short-term up to +250 °C)
  • Low evaporation and high oxidation resistance – stable bearing operation
  • High drop point (>290 °C) and good water resistance
  • NLGI 2 – versatile consistency for ball and roller bearings
  • Suitable for centralized lubrication systems

Properties and applications

  • High-temperature bearings: driers, sterilizers, furnace fans, drives in hot zones.
  • Transport and finishing lines: conveyor chains in wood-coating plants.
  • Humid environments: good resistance to water and condensate – stable lubricating film.
  • Safety note: avoid strong oxidizers; above ~150 °C in air, trace formaldehyde vapors may form – ensure adequate ventilation.

Technical parameters

Parameter Value
Net content 1 kg
Color light beige
Type / composition silicone grease; lithium-complex thickener; anti-oxidant and solid lubricants
NLGI grade 2
Worked penetration (ISO 2137, 60 strokes) 265–295 (1/10 mm)
Density (20 °C) 1.09 g/ml
Base-oil viscosity (25 °C) 500 mm²/s
Service temperature −20 °C to +230 °C (short-term to +250 °C)
Drop point (ISO 2176) >290 °C
4-ball weld load (DIN 51350-4) 1500 N
Water resistance (DIN 51807 pt.1) rating 1-90
Oil separation (DIN 51817) ~1.9 %
Oxidation resistance (100 h, 99 °C) ~0.1 bar pressure drop
Flash point (closed cup) >250 °C
Product classification not classified as hazardous
Transport classification not subject to ADR / IMDG / IATA

Storage recommendations

Store in the original, tightly closed container in a dry, ventilated place, away from oxidizers. Recommended storage temperature: ≤ 20 °C. Stated shelf life: up to 60 months from date of manufacture (when properly stored).

FAQ

1) What is the service temperature?
Approximately −20 °C to +230 °C; short-term to +250 °C.

2) Suitable for driers and conveyor chains?
Yes—proven on driers and conveyor chains in wood-coating plants; also suitable for sterilizers.

3) Can it be used in centralized lubrication systems?
Yes, it can be fed via central lubrication systems.

4) Is it hazardous or ADR-regulated?
No—it's not classified as hazardous and is not subject to ADR/IMDG/IATA.

5) Key figures?
NLGI 2; base-oil viscosity 500 mm²/s; drop point >290 °C; 4-ball 1500 N; density ~1.09 g/ml.

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