Bore Gages
Setting Rings SERIES 177 — Accessories for Inside Micrometers, Holtest and Dial Bore Gages
SPECIFICATIONS Steel Setting Rings Metric
Dimensions (mm)
Accuracy
Max variation between nominal and actual marked diameter (μm)
Size of warranted calibration surface K (mm)
Uncertainty of marked diameter value* 1 (μm)
Nominal size ød (mm)
Order No.
Type
Roundness / Cylindricity* 2 (μm)
Distance from the side face H (mm)
øD øE
T
C
177-220 177-222 177-225 177-227 177-230 177-236 177-239 177-242 177-208 177-246 177-248 177-250 177-252 177-255 177-204 177-257 177-205 177-263 177-267 177-271 177-275 177-125 177-279 177-126 177-284 177-132 177-177 177-133 177-285 177-286 177-139 177-288 177-140 177-290 177-178 177-146 177-292 177-314 177-147 177-316 177-294 177-318 177-148 177-296 177-298 177-300 177-302 177-304 177-306 177-308 177-310 177-312
1
20 — 4 20 — 4 20 — 4 20 — 4 20 — 4 25 — 5 25 — 5 25 — 5 25 — 7 25 — 7 25 — 7 25 — 7 25 — 7 25 — 7 25 — 7 25 — 7 25 — 7 25 — 7 25 — 7 25 — 7 25 — 7
A A A A A A A A A A A A A A A A A A A A A
±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20 ±20
1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.0
1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 3.2 3.2 3.2 3.2 3.7 3.7 3.7 3.7 3.7 4.2 4.2 4.2 4.2 4.2 5.3 5.3 5.3 5.3 5.3 5.3 5.3 5.3
0.8 0.8 0.8 0.8 0.8 1.8 1.8 1.8 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 8.6 8.6 8.6 8.6 7.6
1.1 1.2 1.3 1.4
1.75
2
2.25
2.5
2.75
3
3.25
3.5
3.75
4
4.5
5
5.5
6
6.5
7 8 9
32 — 10 A 32 — 10 A 32 — 10 A 32 — 10 A 38 — 10 A 45 — 10 A 45 — 10 A 45 — 10 A 45 — 10 A 53 — 15 A 71 — 15 A 71 — 15 A 71 — 15 A 85 — 15 A 85 — 20 A 112 — 20 A 112 — 20 A 112 — 20 A 125 — 25 A 125 — 25 A 140 — 25 A 140 — 25 A 160 — 25 A
10 12 14 16 17 18 20 25 30 35 40 45 50 60 62 70 75 80 87 90
12.6 12.6 12.6 12.6 16.6 16.6 16.6 16.6 16.6 27.5 27.5 27.5 27.5 27.5 27.5 27.5
100 125 150 175 200 225 250 275
210 168 235 187 260 215 311 244 337 264 362 290 413 321 438 340
B B B B B B B B
38.1 (25.4)
300 27.5 *1 Actual diameter is marked in 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.
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C-55
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