RETRACTABLE BORE GAGES MEASURE PILLOW BLOCK HOUSING & OTHER HARD-TO-REACH BORES

Maximum Measuring Accuracy
Linear ≤ ± 0.000040″ (0.001 mm)
Repeatability ≤ 0.000060″ (0.0015 mm)
Gage R & R ≤10% measuring high tolerance
parts.

Description

Use these gages when your measuring application requires high accuracy, repeatability and reproducibility.

Model 264-010 with fixed contact point turned in. Contact will rotate 180° to measuring position once gage enters part.

Notable Features
 High accuracy, ease of use, fast measurements.
 Fixed contact pin rotates 180° parallel to the centering base.
 Special depths to 79″ (3000 mm).
 Special depth stops.
 Customized standards, contact
Dyer office.

Ideal Applications
 Aerospace application. Multiple angled-tapered, large deep bore with in landing gears. Gagesare retractable to enter smaller bore and open to measure larger bore. Very high accuracy bore gages, with custom long handles, to reach deep bores.
 Pillow block housings

Models and Specifications

Standard Models and Depth of Reach
Order No.	Depth of Reach	Order No.	Depth of Reach	Order No.	Depth of Reach	Order No.	Depth of Reach
261-005	2.36″	263-005	3.150″	265-005	4.72″	267-005	7.09″
261-010	7.87″	263-010	7.87″	265-010	15.75″	267-010	15.75″
261-015	15.75″	263-015	15.75″	265-015	29.53″	267-015	29.53″
261-020	29.53″	263-020	29.53″
262-005	2.56″	264-005	4.33″	266-005	5.51″
262-010	7.87″	264-010	7.87″	266-010	15.75″
262-015	15.75″	264-015	15.75″	266-015	29.53″
262-020	29.53″	264-020	29.53″

* Special depths possible, contact Dyer

Entrance Specifications


Series	Range (Inch)	Range (mm)	Min d₂ (Inch)	Max d₁ (Inch)	Min d₂ (Inch)	Max d₁ (Inch)	Min d₂ (Inch)	Max d₁ (Inch)	Min d₂ (Inch)	Max d₁ (Inch)	Min Groove Size (Inch)	Contact Pivot
261**	1.181-2.047	30-52	0.944	1.181	1.338	1.653					0.119	120°
			0.984	1.259	1.417	1.732
			1.062	1.338	1.496	1.811
			1.141	1.417	1.574	1.889
			1.181	1.496	1.653	1.968
			1.259	1.574	1.732	2.047
262	1.969-2.756	50-70	1.574	1.968							0.300	180°
			1.574	2.165
			1.574	2.362
			1.692	2.559
			1.889	2.756
263	2.362-3.937	60-100	1.968	2.562							0.394	180°
			1.968	2.759
			1.968	2.955
			1.968	3.152
			2.047	3.349
			2.444	3.546
			2.440	3.743
			2.637	3.937
264	3.150-5.906	80-150	2.480	3.150	3.031	4.727					0.394	180°
			2.480	3.349	3.228	4.924
			2.480	3.743	3.425	5.121
			2.480	3.940	3.622	5.318
			2.480	4.137	3.818	5.514
			2.637	4.333	4.015	5.711
			2.834	4.530	4.212	5.906
265	4.724-8.661	120-220	3.740	4.724	3.740	6.102	5.118	7.480			0.433	180°
			3.740	4.921	3.937	6.299	5.314	7.677
			3.740	5.118	4.133	6.496	5.511	7.874
			3.740	5.314	4.330	6.692	5.708	8.070
			3.740	5.511	4.527	6.889	5.905	8.267
			3.740	5.708	4.724	7.086	6.102	8.464
			3.740	5.905	4.921	7.283	6.299	8.661
266	7.086-14.173	180-360	6.377	7.125	6.377	9.838	7.598	12.201			0.512	180°
			6.377	7.870	6.377	10.232	7.992	12.594
			6.377	8.264	6.377	10.626	8.385	12.988
			6.377	8.657	6.377	11.019	8.779	13.382
			6.377	9.051	6.811	11.413	9.173	13.775
			6.377	9.445	7.204	11.807	9.566	14.173
267	11.417-20.866	290-530	9.448	11.807	9.448	14.169	10.275	16.531	12.637	18.893	0.784	180°
			9.448	12.201	9.448	14.563	10.669	16.925	13.031	19.287
			9.448	23.594	9.448	14.956	11.062	17.319	13.425	19.681
			9.448	12.988	9.448	15.350	11.456	17.712	13.818	20.075
			9.448	13.382	9.448	15.744	11.850	18.106	14.212	20.468
			9.448	13.775	9.881	16.138	12.244	18.500	14.606	20.866