Specialty Products

AST Flanged Squeeze Bushing

secure, concentric shaft retention

AST Squeeze Bushings are robust clamping solutions designed to resist both axial and torque loads, making them ideal for applications where secure, concentric shaft retention is required. Featuring a long clamping length for superior holding power, these bushings effectively grip the shaft while transmitting torque through the flange, ensuring reliable performance in demanding industrial environments.

Overview Catalog

Hydraulic Squeeze Bushings by AME are used to clamp moving shafts to fixed housings in a wide range of applications. They deliver reliable, uniform 360° clamping for accurate, repeatable workpiece location and orientation.

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AST Flanged Squeeze Bushing

Technical Specifications

Showing 55 of 55 models

Product ID	Units	Inside ød [H7]	Outside øD [g7]	L	Shaft ø [H7]	Housing ø [g7]	S	W	øF	øB	Q	Screw Size	Screw Qty	øP	A	Axial Holding Force	Max Side Load
AST 0.250 x 1.250	Inch	0.250 in	0.625 in	1.25 in (-0.000 / -0.0003)	-.0005 / -.0009 in	.0000 / +.0007 in	0.342 in	0.236 in	1.380 in ± 0.015	0.936 in ± 0.008	4 in x 90°	8-32 in	2	0.113 in	45°	18 lbf	15 lbf
AST 0.375 x 1.250	Inch	0.375 in	0.750 in	1.25 in (-0.000 / -0.0003)	-.0005 / -.0009 in	.0000 / +.0008 in	0.342 in	0.236 in	1.500 in ± 0.015	1.061 in ± 0.008	4 in x 90°	8-32 in	2	0.113 in	45°	60 lbf	20 lbf
AST 0.500 x 2.000	Inch	0.500 in	0.875 in	2.00 in (-0.000 / -0.0003)	-.0006 / -.0011 in	.0000 / +.0008 in	0.342 in	0.236 in	1.630 in ± 0.015	1.193 in ± 0.008	4 in x 90°	8-32 in	2	0.113 in	45°	220 lbf	40 lbf
AST 0.625 x 2.000	Inch	0.625 in	1.000 in	2.00 in (-0.000 / -0.0003)	-.0006 / -.0011 in	.0000 / +.0008 in	0.342 in	0.236 in	1.750 in ± 0.015	1.318 in ± 0.008	4 in x 90°	8-32 in	2	0.113 in	45°	280 lbf	50 lbf
AST 0.750 x 2.000	Inch	0.750 in	1.125 in	2.00 in (-0.000 / -0.0003)	-.0008 / -.0013 in	.0000 / +.0008 in	0.342 in	0.236 in	1.880 in ± 0.015	1.443 in ± 0.008	4 in x 90°	8-32 in	2	0.113 in	45°	330 lbf	60 lbf
AST 0.875 x 2.500	Inch	0.875 in	1.250 in	2.50 in (-0.000 / -0.0003)	-.0008 / -.0013 in	.0000 / +.0010 in	0.342 in	0.236 in	2.000 in ± 0.015	1.574 in ± 0.008	4 in x 90°	8-32 in	2	0.113 in	45°	550 lbf	80 lbf
AST 1.000 x 2.500	Inch	1.000 in	1.375 in	2.50 in (-0.000 / -0.0003)	-.0008 / -.0013 in	.0000 / +.0010 in	0.342 in	0.236 in	2.130 in ± 0.015	1.699 in ± 0.008	4 in x 90°	8-32 in	2	0.113 in	45°	630 lbf	90 lbf
AST 1.125 x 2.500	Inch	1.125 in	1.563 in	2.50 in (-0.000 / -0.0003)	-.0008 / -.0013 in	.0000 / +.0010 in	0.372 in	0.315 in	2.380 in ± 0.015	1.886 in ± 0.008	6 in x 60°	10-24 in	2	0.177 in	30°	710 lbf	100 lbf
AST 1.250 x 3.000	Inch	1.250 in	1.688 in	3.00 in (-0.000 / -0.0003)	-.0010 / -.0016 in	.0000 / +.0010 in	0.372 in	0.315 in	2.500 in ± 0.015	2.011 in ± 0.008	6 in x 60°	10-24 in	2	0.177 in	30°	1030 lbf	110 lbf
AST 1.375 x 3.000	Inch	1.375 in	1.813 in	3.00 in (-0.000 / -0.0003)	-.0010 / -.0016 in	.0000 / +.0010 in	0.372 in	0.315 in	2.750 in ± 0.015	2.214 in ± 0.008	6 in x 60°	10-24 in	2	0.177 in	30°	1130 lbf	120 lbf
AST 1.500 x 3.000	Inch	1.500 in	1.938 in	3.00 in (-0.000 / -0.0003)	-.0010 / -.0016 in	.0000 / +.0010 in	0.372 in	0.315 in	2.880 in ± 0.015	2.339 in ± 0.008	6 in x 60°	10-24 in	2	0.177 in	30°	1240 lbf	140 lbf
AST 1.750 x 3.500	Inch	1.750 in	2.188 in	3.50 in (-0.000 / -0.0003)	-.0010 / -.0016 in	.0000 / +.0012 in	0.372 in	0.315 in	3.130 in ± 0.015	2.589 in ± 0.008	6 in x 60°	10-24 in	2	0.177 in	30°	1770 lbf	160 lbf
AST 2.000 x 3.500	Inch	2.000 in	2.625 in	3.50 in (-0.000 / -0.0003)	-.0012 / -.0019 in	.0000 / +.0012 in	0.526 in	0.394 in	3.625 in ± 0.015	3.062 in ± 0.008	6 in x 60°	1/4-20 in	2	0.177 in	30°	1710 lbf	190 lbf
AST 2.250 x 3.500	Inch	2.250 in	2.875 in	3.50 in (-0.000 / -0.0003)	-.0012 / -.0019 in	.0000 / +.0012 in	0.526 in	0.394 in	3.875 in ± 0.015	3.312 in ± 0.008	6 in x 60°	1/4-20 in	2	0.177 in	30°	1920 lbf	210 lbf
AST 2.500 x 4.000	Inch	2.500 in	3.125 in	4.00 in (-0.000 / -0.0003)	-.0012 / -.0019 in	.0000 / +.0012 in	0.526 in	0.394 in	4.125 in ± 0.015	3.562 in ± 0.008	6 in x 60°	1/4-20 in	2	0.177 in	30°	2610 lbf	240 lbf
AST 2.750 x 4.000	Inch	2.750 in	3.375 in	4.00 in (-0.000 / -0.0003)	-.0012 / -.0019 in	.0000 / +.0014 in	0.556 in	0.394 in	4.380 in ± 0.015	3.815 in ± 0.008	6 in x 60°	1/4-20 in	2	0.177 in	30°	2870 lbf	260 lbf
AST 3.000 x 4.000	Inch	3.000 in	3.750 in	4.00 in (-0.000 / -0.0003)	-.0012 / -.0019 in	.0000 / +.0014 in	0.660 in	0.394 in	4.750 in ± 0.015	4.188 in ± 0.008	6 in x 60°	1/4-20 in	2	0.177 in	30°	2700 lbf	290 lbf
AST 3.500 x 4.500	Inch	3.500 in	4.250 in	4.50 in (-0.000 / -0.0003)	-.0014 / -.0023 in	.0000 / +.0014 in	0.660 in	0.394 in	5.250 in ± 0.015	4.687 in ± 0.008	6 in x 60°	1/4-20 in	2	0.117 in	30°	3810 lbf	350 lbf
AST 4.000 x 4.500	Inch	4.000 in	4.750 in	4.50 in (-0.000 / -0.0003)	-.0014 / -.0023 in	.0000 / +.0016 in	0.818 in	0.512 in	6.000 in ± 0.015	5.251 in ± 0.008	8 in x 45°	5/16-18 in	4	0.238 in	22.5°	3880 lbf	400 lbf
AST 4.500 x 4.500	Inch	4.500 in	5.250 in	4.50 in (-0.000 / -0.0003)	-.0014 / -.0023 in	.0000 / +.0016 in	0.878 in	0.512 in	6.500 in ± 0.015	5.813 in ± 0.008	8 in x 45°	5/16-18 in	4	0.238 in	22.5°	4370 lbf	450 lbf
AST 5.000 x 5.000	Inch	5.000 in	5.875 in	5.00 in (-0.000 / -0.0003)	-.0017 / -.0027 in	.0000 / +.0016 in	0.878 in	0.512 in	7.000 in ± 0.015	6.375 in ± 0.008	8 in x 45°	5/16-18 in	4	0.238 in	22.5°	5800 lbf	500 lbf
AST 5.500 x 5.000	Inch	5.500 in	6.375 in	5.00 in (-0.000 / -0.0003)	-.0017 / -.0027 in	.0000 / +.0016 in	0.878 in	0.512 in	7.625 in ± 0.015	6.938 in ± 0.008	8 in x 45°	5/16-18 in	4	0.238 in	22.5°	6380 lbf	550 lbf
AST 6.000 x 5.000	Inch	6.000 in	6.875 in	5.00 in (-0.000 / -0.0003)	-.0017 / -.0027 in	.0000 / +.0016 in	0.878 in	0.512 in	8.188 in ± 0.015	7.500 in ± 0.008	8 in x 45°	5/16-18 in	4	0.238 in	22.5°	6960 lbf	600 lbf
AST 6.500 x 5.000	Inch	6.500 in	7.375 in	5.00 in (-0.000 / -0.0003)	-.0017 / -.0027 in	.0000 / +.0018 in	0.878 in	0.512 in	8.630 in ± 0.015	7.938 in ± 0.008	8 in x 45°	5/16-18 in	4	0.238 in	22.5°	7540 lbf	650 lbf
AST 7.000 x 5.000	Inch	7.000 in	7.875 in	5.00 in (-0.000 / -0.0003)	-.0017 / -.0027 in	.0000 / +.0018 in	0.878 in	0.512 in	9.065 in ± 0.015	8.438 in ± 0.008	8 in x 45°	5/16-18 in	4	0.238 in	22.5°	8120 lbf	690 lbf
AST 7.500 x 6.000	Inch	7.500 in	8.375 in	6.00 in (-0.000 / -0.0003)	-.0020 / -.0031 in	.0000 / +.0018 in	0.878 in	0.512 in	9.625 in ± 0.015	8.938 in ± 0.008	8 in x 45°	5/16-18 in	4	0.238 in	22.5°	11530 lbf	780 lbf
AST 8.000 x 6.000	Inch	8.000 in	8.875 in	6.00 in (-0.000 / -0.0003)	-.0020 / -.0031 in	.0000 / +.0018 in	0.878 in	0.512 in	10.125 in ± 0.015	9.438 in ± 0.008	8 in x 45°	5/16-18 in	4	0.238 in	22.5°	12290 lbf	830 lbf
AST 8.500 x 6.000	Inch	8.500 in	9.375 in	6.00 in (-0.000 / -0.0003)	-.0020 / -.0031 in	.0000 / +.0018 in	0.878 in	0.512 in	10.625 in ± 0.015	9.938 in ± 0.008	8 in x 45°	5/16-18 in	4	0.238 in	22.5°	13060 lbf	840 lbf
AST 9.000 x 6.000	Inch	9.000 in	10.000 in	6.00 in (-0.000 / -0.0003)	-.0020 / -.0031 in	.0000 / +.0020 in	0.977 in	0.630 in	11.375 in ± 0.015	10.625 in ± 0.008	8 in x 45°	3/8-16 in	4	0.302 in	22.5°	12560 lbf	930 lbf
AST 9.500 x 6.000	Inch	9.500 in	10.500 in	6.00 in (-0.000 / -0.0003)	-.0020 / -.0031 in	.0000 / +.0020 in	0.977 in	0.630 in	11.875 in ± 0.015	11.125 in ± 0.008	8 in x 45°	3/8-16 in	4	0.302 in	22.5°	13250 lbf	970 lbf
AST 10.000 x 7.000	Inch	10.000 in	11.000 in	7.00 in (-0.000 / -0.0003)	-.0022 / -.0035 in	.0000 / +.0020 in	0.977 in	0.630 in	12.375 in ± 0.015	11.625 in ± 0.008	8 in x 45°	3/8-16 in	4	0.302 in	22.5°	17720 lbf	1050 lbf
AST 10.500 x 7.000	Inch	10.500 in	11.500 in	7.00 in (-0.000 / -0.0003)	-.0022 / -.0035 in	.0000 / +.0020 in	0.977 in	0.630 in	12.875 in ± 0.015	12.125 in ± 0.008	8 in x 45°	3/8-16 in	4	0.302 in	22.5°	18610 lbf	1100 lbf
AST 11.000 x 7.000	Inch	11.000 in	12.000 in	7.00 in (-0.000 / -0.0003)	-.0022 / -.0035 in	.0000 / +.0020 in	0.977 in	0.630 in	13.375 in ± 0.015	12.625 in ± 0.008	8 in x 45°	3/8-16 in	4	0.302 in	22.5°	19490 lbf	1160 lbf
AST 11.500 x 7.000	Inch	11.500 in	12.500 in	7.00 in (-0.000 / -0.0003)	-.0022 / -.0035 in	.0000 / +.0022 in	0.977 in	0.630 in	13.875 in ± 0.015	13.125 in ± 0.008	8 in x 45°	3/8-16 in	4	0.302 in	22.5°	20380 lbf	1200 lbf
AST 12.000 x 7.000	Inch	12.000 in	13.000 in	7.00 in (-0.000 / -0.0003)	-.0022 / -.0035 in	.0000 / +.0022 in	0.977 in	0.630 in	14.375 in ± 0.015	13.625 in ± 0.008	8 in x 45°	3/8-16 in	4	0.302 in	22.5°	21270 lbf	1260 lbf
AST 10 x 40	Metric	10 mm	20 mm	40 mm (0.00 / -0.08 mm)	-0.013 / -0.022 mm	0.000 / +0.021 mm	8.7 mm	-	39 mm	28 mm	4 in x 90°	M4 x 0.70 mm	2	3.7 mm	45°	510 mm	130 N
AST 15 x 50	Metric	15 mm	25 mm	50 mm (0.00 / -0.08 mm)	-0.016 / -0.027 mm	0.000 / +0.021 mm	8.7 mm	-	44 mm	33 mm	4 in x 90°	M4 x 0.70 mm	2	3.7 mm	45°	1170 mm	200 N
AST 20 x 65	Metric	20 mm	30 mm	65 mm (0.00 / -0.08 mm)	-0.020 / -0.033 mm	0.000 / +0.021 mm	8.7 mm	-	49 mm	38 mm	4 in x 90°	M4 x 0.70 mm	2	3.7 mm	45°	2350 mm	280 N
AST 25 x 80	Metric	25 mm	35 mm	80 mm (0.00 / -0.08 mm)	-0.020 / -0.033 mm	0.000 / +0.025 mm	8.7 mm	-	54 mm	43 mm	4 in x 90°	M4 x 0.70 mm	2	3.7 mm	45°	3930 mm	380 N
AST 30 x 80	Metric	30 mm	40 mm	80 mm (0.00 / -0.08 mm)	-0.020 / -0.033 mm	0.000 / +0.025 mm	9.4 mm	-	62 mm	49 mm	6 in x 60°	M5 x 0.80 mm	2	4.7 mm	30°	4710 mm	450 N
AST 35 x 80	Metric	35 mm	45 mm	80 mm (0.00 / -0.08 mm)	-0.025 / -0.041 mm	0.000 / +0.025 mm	9.4 mm	-	67 mm	54 mm	6 in x 60°	M5 x 0.80 mm	2	4.7 mm	30°	5550 mm	540 N
AST 40 x 100	Metric	40 mm	50 mm	100 mm (0.00 / -0.08 mm)	-0.025 / -0.041 mm	0.000 / +0.025 mm	9.4 mm	-	72 mm	59 mm	6 in x 60°	M5 x 0.80 mm	2	4.7 mm	30°	8400 mm	640 N
AST 45 x 100	Metric	45 mm	55 mm	100 mm (0.00 / -0.08 mm)	-0.025 / -0.041 mm	0.000 / +0.030 mm	9.4 mm	-	77 mm	64 mm	6 in x 60°	M5 x 0.80 mm	2	4.7 mm	30°	9450 mm	720 N
AST 50 x 100	Metric	50 mm	65 mm	100 mm (0.00 / -0.08 mm)	-0.025 / -0.041 mm	0.000 / +0.030 mm	13.4 mm	-	89 mm	75 mm	6 in x 60°	M6 x 1.00 mm	2	5.7 mm	30°	9070 mm	800 N
AST 60 x 100	Metric	60 mm	75 mm	100 mm (0.00 / -0.08 mm)	-0.030 / -0.049 mm	0.000 / +0.030 mm	13.4 mm	-	99 mm	85 mm	6 in x 60°	M6 x 1.00 mm	2	5.7 mm	30°	10890 mm	960 N
AST 70 x 120	Metric	70 mm	85 mm	120 mm (0.00 / -0.08 mm)	-0.030 / -0.049 mm	0.000 / +0.035 mm	14.1 mm	-	109 mm	95 mm	6 in x 60°	M6 x 1.00 mm	2	5.7 mm	30°	16400 mm	1160 N
AST 80 x 120	Metric	80 mm	100 mm	120 mm (0.00 / -0.08 mm)	-0.030 / -0.049 mm	0.000 / +0.035 mm	16.7 mm	-	124 mm	110 mm	6 in x 60°	M6 x 1.00 mm	2	5.7 mm	30°	16720 mm	1320 N
AST 100 x 140	Metric	100 mm	125 mm	140 mm (0.00 / -0.08 mm)	-0.036 / -0.058 mm	0.000 / +0.040 mm	20.8 mm	-	155 mm	137 mm	8 in x 45°	M8 x 1.25 mm	4	7.7 mm	22.5°	24060 mm	1690 N
AST 120 x 140	Metric	120 mm	140 mm	140 mm (0.00 / -0.08 mm)	-0.036 / -0.058 mm	0.000 / +0.040 mm	22.3 mm	-	172 mm	154 mm	8 in x 45°	M8 x 1.25 mm	4	7.7 mm	22.5°	28880 mm	2030 N
AST 150 x 140	Metric	150 mm	175 mm	140 mm (0.00 / -0.08 mm)	-0.043 / -0.068 mm	0.000 / +0.040 mm	22.3 mm	-	207 mm	189 mm	8 in x 45°	M8 x 1.25 mm	4	7.7 mm	22.5°	36100 mm	2540 N
AST 180 x 140	Metric	180 mm	205 mm	140 mm (0.00 / -0.08 mm)	-0.043 / -0.068 mm	0.000 / +0.046 mm	22.3 mm	-	237 mm	219 mm	8 in x 45°	M8 x 1.25 mm	4	7.7 mm	22.5°	43320 mm	3070 N
AST 200 x 140	Metric	200 mm	225 mm	140 mm (0.00 / -0.08 mm)	-0.050 / -0.079 mm	0.000 / +0.046 mm	22.3 mm	-	257 mm	239 mm	8 in x 45°	M8 x 1.25 mm	4	7.7 mm	22.5°	48130 mm	3390 N
AST 220 x 140	Metric	220 mm	245 mm	140 mm (0.00 / -0.08 mm)	-0.050 / -0.079 mm	0.000 / +0.046 mm	22.3 mm	-	277 mm	259 mm	8 in x 45°	M8 x 1.25 mm	4	7.7 mm	22.5°	52940 mm	3770 N
AST 250 x 160	Metric	250 mm	280 mm	160 mm (0.00 / -0.08 mm)	-0.050 / -0.079 mm	0.000 / +0.057 mm	24.8 mm	-	317 mm	296 mm	8 in x 45°	M10 x 1.50 mm	4	9.7 mm	22.5°	67020 mm	4320 N
AST 300 x 160	Metric	300 mm	330 mm	160 mm (0.00 / -0.08 mm)	-0.056 / -0.088 mm	0.000 / +0.057 mm	24.8 mm	-	367 mm	346 mm	8 in x 45°	M10 x 1.50 mm	4	9.7 mm	22.5°	80430 mm	5180 N

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AST Flanged Squeeze Bushing

secure, concentric shaft retention

Technical Specifications

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