High performance hand-held stroboscope for machine inspections

The SKF TKRS 41 is a high performance stroboscope for visually inspecting running machines and for determining the machine speed. The stroboscope is robust and is characterised by its excellent brightness, allowing usage in challenging industrial environments. The built-in laser speed measurement and the simple controls help users to quickly set the correct flash rate and obtain clear “frozen” images for inspection.
Stroboscope TKRS 41
Stroboscope TKRS 41 in carry case

The SKF TKRS 41 is designed for general maintenance tasks and with its standard operating mode is streamlined for fast and straightforward usage. The professional mode can be activated for more demanding applications, for example when enhanced input signal modification is needed to trigger the stroboscope with machine signals. For convenience, the “SLOW” function can be used to examine all parts of the rotating machine in slow-motion.

  • High brightness & operating time - Powerful array of 118 LEDs delivering up to 8 000 lux of luminescence for usage in almost any environment
  • Slow mode - Frozen images rotate in slow motion and support convenient inspection
  • Portable and sturdy - Lightweight aluminium housing with integrated battery and rubber bumper strips for use in industrial environments
  • Easy operation - Ergonomic and intuitive controls allow quick setting of the correct flash rate
  • Automatic laser synch - Build-in laser speed measurement, with automatic synchronization of the flash rate, eliminates the need to search for the right frequency 
  • Professional input signal modulation - Machine input signals can be used and modulated to trigger the stroboscope

Typical applications

Stroboscope TKRS 41 application

The SKF TKRS 41 is a portable, high-performance stroboscope for visual inspections. It is suitable for general maintenance in challenging industrial environments and the input trigger can be used for advanced inspections in production processes and testing equipment.

  • General maintenance - Inspection of running machines for visible damages, such as fan blades, shafts, couplings, belts, chains, gears, etc.
  • Paper production - Setup and control of paper production quality during operation 
  • Textile industry - Installation and inspection of production processes such as spindles or weaving patterns
  • Printing industry - Check of printing quality during production
  • Test equipment - Analysis of materials and components during fast movements such as analysis of resonance behaviour
  • Technical data
    DesignationTKRS 41
    Flash rate range40 to 300 000 flashes per minute (f/min.)
    Flash rate accuracy±0.02 % (± 1 digit / ± 0.025 µs)
    Flash setting and display resolution± 0.1 (30 to 999.9 f/min)
    ± 1.0 (1 000 to 9 999 f/min)
    ± 10 (10 000 to 300 000 f/min)
    Tachometer range30 to 300 000 r/min.
    Tachometer accuracy±0,5 r/min. or ±0,01% of reading,
    whichever is greater
    Flash source118 LEDs
    Flash durationadjustable, 0.025° – 3.0°
    Light power1 750 lux at 1° flash duration
    and 0,3 m (12 in.) distance
    Power sourceLi-ion battery (rechargeable);
    continuous operation with power supply
    Run time per chargeca. 2:30 h @ 0.50° (~4000 lux)
    ca. 5:00 h @ 0.25° (~2000 lux)
    Charger and power supply110-230V, 50/60Hz, EU/US/UK/AUS plugs
    DisplayMulti-line backlight LCD
    ControlsMode selector switch and rotary/push knob
    External trigger input3–30 V / max. 5 mA (potential-free optocoupler) via DIN 41524 5-pin plug (included)
    External trigger range0 to 300 000 f/min
    Case dimensions345 x 165 x 270 mm (13.6 x 6.5 x 10.6 in.)
    Unit weight–20 to +45 °C (–4 to +113 °F)
    Total weight1,15 kg (2.53 lb)
    Operating temperature0 to 40 °C (32 to 104 °F)
  • Spare parts

Spare part images

Related documents

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