Bore Gages
SPECIFICATIONS CERA Setting Rings Inch
Dimensions (mm)
Accuracy
Max variation between nominal and actual marked diameter (in)
Uncertainty of marked diameter value* 1 (in)
Size of warranted calibration surface K (mm)
Nominal size ød (in)
Order No.
Type
Roundness / Cylindricity* 2 (in)
Distance from the side face H (mm)
øD øE
T
C
177-518 177-520 177-522 177-523 177-524 177-525 177-527 177-529 177-530 177-531 177-532 177-533 177-534
0.16 0.24
25 — 7 25 — 7 25 — 7 32 — 10 32 — 10 32 — 10 45 — 10 45 — 10 53 — 15 71 — 15 71 — 15 71 — 15 85 — 15
A ±0.0004 A ±0.0004 A ±0.0004 A ±0.0004 A ±0.0004 A ±0.0004 A ±0.0004 A ±0.0004 A ±0.0004 A ±0.0004 A ±0.0004 A ±0.0004 A ±0.0004
0.00006 0.00006 0.00006 0.00006 0.00006 0.00006 0.00006 0.00006 0.00006 0.00006 0.00006 0.00006 0.00006
0.00004 0.00004 0.00004 0.00004 0.00004 0.00004 0.00004 0.00004 0.00004 0.00004 0.00004 0.00004 0.00004
1.7 1.7 1.7 2.0 2.0 2.0 2.0 2.0 3.2 3.2 3.2 3.2 3.7
3.6 3.6 3.6 6.0 6.0 6.0 6.0 6.0 8.6 8.6 8.6 8.6 7.6
0.275
0.35
0.425
0.5
0.65
0.8
1
1.2 1.4 1.6 1.8
Metric
Dimensions (mm)
Accuracy
Max variation between nominal and actual marked diameter (μm)
Uncertainty of marked diameter value* 1 (μm)
Size of warranted calibration surface K (mm)
Nominal size ød (mm)
Order No.
Type
Roundness / Cylindricity* 2 (μm)
Distance from the side face H (mm)
øD øE
T
177-418 177-420 177-423 177-424 177-425 177-427 177-429 177-430 177-431 177-432 177-433 177-434
4 6 8
25 — 7 25 — 7 32 — 10 32 — 10 32 — 10 45 — 10 45 — 10 53 — 15 71 — 15 71 — 15 71 — 15 85 — 15
A A A A A A A A A A A A
±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10
1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5
1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
1.7 1.7 2.0 2.0 2.0 2.0 2.0 3.2 3.2 3.2 3.2 3.7
3.6 3.6 6.0 6.0 6.0 6.0 6.0 8.6 8.6 8.6 8.6
10 12 16 20 25 30 35 40
45 7.6 *1 Actual diameter is marked in 10 µinch / 0.001 mm increments. (Dimension measuring position is the center of the height T.) *2 Cylindricity is defined as per JIS B 0621 Definitions and designations of geometrical deviations, Section 4.4 “Cylindricity.” Cylindricity is measured using three cross-sections between the top and bottom face of a ring, namely, close to the face near each side and the center.
C-56
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