TIHL33/MV SKF Extra-Large Induction Bearing Heater

SKF extra-large induction heater designed for the safe and efficient hot mounting of bearings weighing up to 700 kg.

The TIH L33/MV combines advanced power electronics with a dual-coil induction system to provide fast, uniform heating of large bearings. Components can be heated horizontally around the induction coil or vertically around the sliding yoke, allowing the bearing to remain in the most convenient orientation for mounting.

Automatic temperature control, time-controlled operation and demagnetisation provide a controlled heating process, while the sliding yoke helps operators position and remove heavy components safely. The robust floor-standing frame includes forklift access for easier transportation around industrial facilities.

Product characteristics

Category: Induction bearing heaters
Manufacturer: SKF
Product designation: TIH L33/MV
Series: TIH L33
Heater size: Extra large
Heater type: Workshop-floor induction heater
Heating method: Low-frequency induction
Application: Hot mounting of large bearings
Heating orientation: Horizontal or vertical
Suitable for mounting: Yes
Suitable for dismounting: No
Maximum bearing weight: 700 kg
Standard minimum bearing bore: 115 mm
Bearing bore range with optional yokes: 60–700 mm
Coil diameter: 150 mm

Heating performance

Maximum bearing capacity: 700 kg
Performance example: 24188 ECA/W33 bearing, approximately 450–455 kg, heated to 110°C in approximately 28 minutes
Maximum power consumption: 15 kVA
Power settings: 50% and 100%

The two-stage power control allows smaller or more sensitive components to be heated at a reduced rate. Accurate current regulation helps control the temperature increase and promotes even heating throughout the component.

Heating controls

Control modes: Temperature and time
Temperature range: 0–250°C
Equivalent temperature range: 32–482°F
Temperature adjustment: 1°C increments
Time-control range: 0.1–60 minutes
Time adjustment: 0.1-minute increments
Temperature measurement: Magnetic K-type probe
Number of temperature sensors: 1
Thermometer mode: Yes
Temperature-hold function: Automatic
Demagnetisation: Automatic, less than 2 A/cm
Thermal overload protection: Yes
Error-guidance codes: Yes
Control panel: Wired remote control with LED display

The automatic temperature-hold function keeps the bearing warm after completion of the heating cycle. Automatic demagnetisation helps prevent the component from attracting ferrous particles following heating.

Electrical data

Supply voltage: 400–460 V
Frequency: 50–60 Hz
Maximum power consumption: 15 kVA
Maximum current consumption: 32 A
Voltage classification: MV

Dimensions and weight

Dimensions W × L × H: 400 × 743 × 550 mm
Operating area W × H: 300 × 320 mm
Total weight including standard yoke: 140 kg

Yokes

Standard sliding yoke: Suitable for workpieces with a minimum bore diameter of 115 mm
Optional yoke: Suitable for a minimum bore diameter of 80 mm
Optional yoke: Suitable for a minimum bore diameter of 60 mm
Sliding-yoke mechanism: Yes
Yoke storage: No

The durable sliding rails allow the standard yoke to be moved quickly and securely. The yoke can also be replaced with an optional smaller version when heating components with reduced bore diameters.

Features and benefits

• High heating capacity for bearings weighing up to 700 kg
• Efficient 15 kVA power consumption
• Dual-coil design promotes uniform heating
• Bearings can be heated horizontally or vertically
• Standard sliding yoke supports ergonomic component handling
• Optional yokes accommodate bore diameters down to 60 mm
• Automatic temperature- or time-controlled operation
• Magnetic temperature probe helps prevent overheating
• Two power settings support controlled heating of sensitive components
• Automatic temperature-hold function
• Automatic demagnetisation reduces contamination risk
• Thermal protection safeguards the induction coils and electronics
• Wired remote control with integrated LED display
• Removable bearing-support arms
• Compact floor-standing design
• Forklift access simplifies transportation

The SKF TIH L33/MV is a powerful and energy-efficient solution for industrial maintenance teams working with large bearings. Its flexible heating orientation, automatic controls and heavy-duty sliding-yoke system make it suitable for demanding mounting applications in manufacturing plants, processing facilities and maintenance workshops.