Castrol Spheerol HTB 2 High Temperature Bearing Grease 450g Cartridge
Castrol Spheerol HTB 2 is a premium, non-melting grease formulated with an advanced bentonite clay (bentone) thickener and high-viscosity mineral base oils. Fortified with robust anti-oxidants and highly resistant to water washout, this grease provides outstanding mechanical stability and surface protection across grueling thermal environments.
Product Applications
This high-temperature grease is engineered for a diverse range of heavy-duty industrial and automotive bearing applications. It is ideal for machinery operating at elevated temperatures, proving suitable for continuous use up to 140°C with short-term temperature peak performance extending up to 200°C.
Key Features & Benefits
- Non-Melting Bentone Base: Utilizing a premium clay-based thickener instead of standard soap, this formula retains its structure and will not melt or run out of bearings at extreme temperatures.
- Heavy & Shock Load Shielding: Fortified with high-viscosity base oils to establish a durable protective film that easily withstands heavy operation and intense shock-loading stress.
- Enhanced Service Life: Outstanding thermal and oxidative stability prevents grease breakdown and hardening, significantly extending relubrication intervals.
- Excellent Moisture Resistance: Highly resistant to water washout, ensuring critical moving parts remain fully lubricated and shielded from rust in humid or outdoor conditions.
Product Specifications & Technical Data
- Packaging Size: 450g Cartridge
- Thickener Type: Bentone (Bentonite Clay)
- Base Oil Type: Mineral
- NLGI Consistency Grade: NLGI 2.5
- Colour: Smooth Amber / Brown
- Base Oil Kinematic Viscosity at 40°C: 500 mm²/s
- Base Oil Kinematic Viscosity at 100°C: 32 mm²/s
- Part Number (MPN): 3371032
Recommended Application Guide: Castrol Spheerol HTB 2
Castrol Spheerol HTB 2 is a specialized, non-melting bentone clay-based extreme temperature grease. Below is a structured list of recommended applications across high-heat industrial, manufacturing, and heavy automotive systems:
High-Temperature Industrial Applications
- Kiln & Furnace Bearings: Engineered to provide reliable boundary lubrication for slow-speed bearings on kiln cars, boiler plant structures, and industrial baking ovens.
- Exhaust Fan Bearings: Maintains an unyielding protective film on high-temperature air handling units, induced-draft fans, and hot gas extractor assemblies.
- Drying Oven Conveyors: Resists structural breakdown and fluid leakage in paint curing lines, textile dryers, and timber processing kilns running continuously up to 140°C.
Heavy Machinery & Manufacturing Nodes
- Foundry & Steel Mill Gear: Handles extreme radiant heat and intermittent temperature surges peaking up to 200°C on hot metal handling infrastructure.
- Asphalt & Concrete Plant Machinery: Withstands heavy, continuous high-vibration loads and extreme heat exposure on mixing drums, aggregate dryers, and paving components.
- Plastic Extrusion Equipment: Safely lubricates dynamic heated joints, die assemblies, and guide rollers where conventional soap-based greases would thin out and run.
Automotive & Severe Service Applications
- Heavy-Duty Drum Brake Components: Ideal for backing plates and pivot points on commercial truck, bus, and agricultural trailer drum brake shoes where heavy friction generates intense heat.
- Slow-Speed Heavy Journal Bearings: Fortified with high-viscosity mineral oils (500 mm²/s at 40°C) to prevent metal-on-metal wear under severe shock-loading cycles.
- Outdoor Moisture-Prone Assemblies: Excellent water washout resistance makes it perfect for heavy processing machinery regularly exposed to steam, humidity, or open-air weathering.