High-temperature ball bearings (T250 type) with a special metallurgical construction combined with a lubrication system can withstand extremely high temperatures up to 250°C while maintaining load-carrying capacity and self-aligning performance.

Suffix T250 spherical roller bearings offer the following advantages:

Max temperature: up to 250°C
Material: high-strength steel (AISI 52100 / SUJ2)
Different versions:
Cylindrical bore with radial clearance CN,
Cylindrical bore with radial clearance C3,
Tapered bore with radial clearance C3.
Lubrication: high-temperature grease (suitable up to 250°C)
Surface treatment: Customization options for the anti-corrosion coating version (manganese phosphate)
Designs available:
- Open type
- Sealed Viton heat-resistant
- Single-row / double-row configurations

Suffix T250 spherical roller bearings are widely used in applications:

Steel mills (furnace conveyors, roll tables)
Cement plants (kiln drives, clinker coolers)
Power plants (boilers, fans)
Industrial ovens & dryers
Mining & heavy processing equipment

Comparison: Standard and high-temperature spherical roller bearings

Feature	Standard bearings	GMW high-temperature spherical roller bearings
Maximum temperature	Up to 120°C	Up to 250°C
Lubrication	Conventional grease	high-temperature grease (suitable up to 250°C)
Internal clearance	Normal (CN or C3)	Increased (C3)
Material	Chrome	Chrome
Applications	General industry	Only use heat-resistant environments.