Page 18 - LFC catalogue Metrology

metrology

Classic Limit Gauge

Plain Limit Gauges

Ojiyas Limit plug gauge (Plain Gauge) is a pair of gauges having dimension of maximum and minimum limit size of hole to assure the interchangeability of the
engagement between hole and shaft. The major types are plug gauge (stopping gauge), ring gauge and snap gauge.
Ojiyas Snap Gauge is a gauge having dimension of maximum and minimum size of shaft to assure the interchangeability of the engagement between shaft
and hole. The limit deviation tolerances and the grade of the gauges are determined according to the types of plain limit gauges and applied grade of the
hole or the shaft.

Taper Lock Type

1 include o r 3 less Go Not Go Under Length
Nominal Size φ d Neck Handle
Exceeded~Less K1 L1 K2 L2 m L Length
2 2 1 include~3 less 7 25 3.5 21.5 - 58.5 40
3~6 10 32 5 27 - 77 50
K1 4 4 K2
6~10 12 37 7 32 - 101 70
L1 L2
10~14 13 38 7 32 6 107 75
L 14~18 17 42 10 35 6 119 80
18~24 17 42 10 35 6 119 80
24~30 22 52 13 43 8 141 90
30~40 25 60 13 48 9.5 157 100
40~50 25 60 13 48 9.5 157 100

Trilock Type

Go Not Go Handle
Nominal Size φ d
௨ φd Exceeded~Less K1 L1 K2 L2 Length
50~65 32 155 17 140 125
65~80 37 175 17 163 150
K1 80~90 37 175 17 163 150
L1 90~95 37 175 17 163 150
95~100 37 175 17 163 150
100~110 37 175 17 163 150
110~120 37 175 17 163 150

Carbide Gauges

The plug gauge, ring gauge,
snap gauge using the
superhardened materials
are produced as well.

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