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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

Designation TKRS 41
Flash rate range 30 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 range 30 to 300 000 r/min
Tachometer accuracy ±0,02 % or ±1 digit,

whichever is greater
Flash source 118 LEDs
Flash duration adjustable, 0,025° – 3,0°
Light power 8 000 lux at 1° flash duration

and 0,3 m (12 in) distance
Power source Li-ion battery (rechargeable);

continuous operation with power supply
Run time per charge ca. 2:30 h @ 0,50° (~4000 lux)

ca. 5:00 h @ 0,25° (~2000 lux)
Charger and power supply 110-230V, 50/60Hz, EU/US/UK/AUS plugs
Display Multi-line backlight LCD
Controls Mode selector switch and rotary/push knob
External trigger input 3–30 V / max. 5 mA (potential-free optocoupler) via DIN 41524 5-pin plug (included)
External trigger range 0 to 300 000 f/min
Case dimensions 345 x 165 x 270 mm (13.6 x 6.5 x 10.6 in)
Unit weight 1,15 kg (2.53 lb)
Total weight 2,4 kg (5.3 lb)
Operating temperature 0 to 40 °C (32 to 104 °F)

Spare parts

Spare part images







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