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KOHTECT BT-77
value of dB
i
features the condition of a new correctly installed and lubricated bearing.
The shock pulse amplitude increases as a result of wear and improper use. Shock
acceleration amplitude over running the value of dB
i
- dB
sv
features a damage, and is
used for the evaluation of bearing condition.
This enable BT-77 to tell the difference of shock pulse values induce is low shock and
high shock, a normalized measurement scale call dB
n
is uses, see beneath Table-1.0.
dB
n
=
0 - 25
Good condition
dB
n
=
25 - 40 Satisfactory condition
dB
n
>
40
Poor condition, breakdown risk
Table-1.0
Fig-1.0
3
Summary of Contents for BT-77
Page 1: ...BT 77 Bearing Tester with Non Contact Tacho Operating Instruction Manual...
Page 2: ......
Page 4: ...KOHTECT BT 77...