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Belt alignment tool TKBA 40

Highly accurate tool for V-belt pulley alignment

The SKF TKBA 40 aligns V-belt pulleys in the grooves. V–guides and powerful magnets allow the TKBA 40 to be fitted in the grooves of the pulley. With only two components, a laser–emitting unit and a receiver unit, the belt alignment tool is easy and fast to attach. The three–dimensional target area on the receiver unit allows the easy detection of misalignment as well as its nature; whether it is horizontal, vertical, parallel or a combination of all three.

Features and Benefits

  • Powerful magnets allow fast and easy attachment
  • Three-dimensional target area simplifies the alignment process
  • Facilitates simultaneous adjustment of tension and alignment
  • V-guides facilitate the alignment of a wide range of V-belt pulleys
  • Aligns grooves of a V-belt pulley rather than its face, allowing optimum alignment of pulleys of unequal width or with dissimilar faces
  • A maximum operating distance of 6 m (20 ft) accommodates many applications
  • Special side adaptor allowing alignment of multi-ribbed and timing belt pulleys as well as sprockets is available as accessory

Technical Data TKBA 40

Type of laser 
Red laser diode
1x Built-in class 2 laser, <1 mW, 632 nm
Laser line length 
3 m at 2 m (9.8 ft at 6.6 ft)
Measurement accuracy angular 
Better than 0,02°
Measurement accuracy offset 
Better than 0,5 mm (0.02 in.)
Measurement distance 
50 mm to 6 000 mm (2 in. to 20 ft)
Laser on/off switch
Housing material 
Extruded aluminium
Transmitter unit 
70 x 74 x 61 mm (2.8 x 2.9 x 2.4 in.)
Receiver unit 
96 x 74 x 61 mm (3.8 x 2.9 x 2.4 in.)
Reflector dimensions 
Transmitter unit 
320 g (0.7 lbs)
Receiver unit 
320 g (0.7 lbs)
Magnetic, groove mounted (optional side adapter TMEB A2)
Size 1: 22 mm, short rods (3x pairs) Size 2: 22 mm, long rods (3x pairs) Size 3: 40 mm, short rods (3x pairs) Size 4: 40 mm, long rods (3x pairs)
2x AAA Alkaline type IEC LR03
Operation time 
20 hours continuous operation
Carrying case dimensions 
260 x 180 x 85 mm (10.2 x 7.1 x 3.3 in.)
Total weight (incl. case) 
1,3 kg (2.8 lbs)
Operating temperature 
0 to 40 °C (32 to 104 °F)
Storage temperature 
–20 to +65 °C (–4 to +150 °F)
Relative humidity 
10 to 90% RH non-condensing
IP rating 
IP 40
Calibration certificate 
Valid for two years
Case contents 
1x TKBA 40 transmitter unit 1x TKBA 40 receiver unit 2x AA batteries 4x sizes of V-guides, 3x of each size 1x Printed instructions for use 1x Calibration certificate