Heavy Duty (Imperial) XWHM Series

The XWHM Series Spirolox® Retaining Ring is designed for the toughest retaining ring jobs. XWHM series retaining rings use standard industry groove dimensions and are interchangeable with many stamped retaining rings. This series should be specified for thrust loads that demand deep groove, heavy section capacity.

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Product Information

The XWHM Series Spirolox^® Retaining Ring is designed for the toughest retaining ring jobs. XWHM series retaining rings use standard industry groove dimensions and are interchangeable with many stamped retaining rings. This series should be specified for thrust loads that demand deep groove, heavy section capacity.

Materials: Carbon Steel, 302 & 316 Stainless Steel.
Alternative materials available on request.

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Dimensions: Inches
(in)* No removal notch¹ Based on groove materials yield strength of 45,000 psi and safety factor of 2.² Based on safety factor of 3.Add suffix -S02 or -S16 for stainless steel

Part Number	Housing Diameter	Ring Outside Diameter		Ring Radial Wall		Ring Thickness		Groove Diameter		Groove Width		Groove Yield¹ (Lb)	Ring Shear² (Lb)
XWHM-25*	0.250	0.270	+0.01/-0.00	0.020	+0.003/-0.005	0.015	±0.002	0.268	±0.002	0.020	+0.003/-0.000	159	561
XWHM-31*	0.312	0.333		0.025		0.015		0.330		0.020		198	700
XWHM-37*	0.375	0.400		0.030		0.025		0.397		0.029		292	1442
XWHM-43	0.437	0.464	+0.012/-0.00	0.035		0.025		0.461		0.029		371	1680
XWHM-50	0.500	0.538	+0.13/-0.00	0.045		0.035		0.530		0.039		530	2530
XWHM-51	0.512	0.550		0.045		0.035		0.542		0.039		540	2590
XWHM-56	0.562	0.605		0.055		0.035		0.596		0.039		680	2840
XWHM-62	0.625	0.675		0.055		0.035		0.665		0.039		880	3160
XWHM-68	0.688	0.743		0.065		0.035		0.732		0.039		1070	3480
XWHM-75	0.750	0.807		0.065		0.035		0.796		0.039		1220	3790
XWHM-77	0.777	0.836		0.075		0.042		0.825	±0.003	0.046		1320	4720
XWHM-81	0.812	0.873		0.075		0.042		0.862		0.046		1440	4930
XWHM-86	0.866	0.931		0.075		0.042		0.920		0.046		1650	5260
XWHM-87	0.875	0.943		0.085		0.042		0.931		0.046		1730	5310
XWHM-90	0.901	0.972		0.085		0.042		0.959		0.046		1850	5470
XWHM-93	0.938	1.013		0.085		0.042		1.000		0.046		2060	5690
XWHM-100	1.000	1.080		0.085		0.042		1.066		0.046		2330	6070
XWHM-102	1.023	1.105		0.085		0.042		1.091		0.046		2460	6210
XWHM-106	1.062	1.138		0.103		0.050		1.130	±0.004	0.056	+0.004/-0.000	2550	7010
XWHM-112	1.125	1.205		0.103		0.050		1.197		0.056		2860	7420
XWHM-118	1.188	1.271		0.103		0.050		1.262		0.056		3110	7840
XWHM-125	1.250	1.339		0.103		0.050		1.330		0.056		3530	8250
XWHM-131	1.312	1.406		0.118		0.050		1.396		0.056		3900	8660
XWHM-137	1.375	1.471		0.118		0.050		1.461		0.056		4180	9070
XWHM-143	1.439	1.539		0.118		0.050		1.528		0.056		4580	9490
XWHM-145	1.456	1.559		0.118		0.050		1.548		0.056		4730	9610
XWHM-150	1.500	1.605		0.118		0.050		1.594		0.056		4980	9900
XWHM-156	1.562	1.675	+0.020/-0.00	0.128		0.062	±0.003	1.658	±0.005	0.068		5300	12780
XWHM-162	1.625	1.742		0.128		0.062		1.725		0.068		5740	13290
XWHM-165	1.653	1.772		0.128		0.062		1.755		0.068		5960	13520
XWHM-168	1.688	1.810		0.128		0.062		1.792		0.068		6210	13810
XWHM-175	1.750	1.876		0.128		0.062		1.858		0.068		6680	14320
XWHM-181	1.812	1.940		0.128		0.062		1.922		0.068		7050	14820
XWHM-185	1.850	1.981		0.158		0.062		1.962		0.068		7320	15130
XWHM-187	1.875	2.008		0.158		0.062		1.989		0.068		7560	15340
XWHM-193	1.938	2.075		0.158		0.062		2.056		0.068		8080	15850
XWHM-200	2.000	2.142		0.158		0.062		2.122		0.068		8620	16360
XWHM-206	2.062	2.201	+0.025/-0.000	0.168	+0.004/-0.006	0.078		2.186	±0.006	0.086	+0.005/-0.000	9040	21220
XWHM-212	2.125	2.267		0.168		0.078		2.251		0.086		9460	21870
XWHM-218	2.188	2.334		0.168		0.078		2.318		0.086		50	22520
XWHM-225	2.250	2.399		0.168		0.078		2.382		0.086		500	23160
XWHM-231	2.312	2.467		0.200		0.078		2.450		0.086		1280	23800
XWHM-237	2.375	2.535		0.200		0.078		2.517		0.086		1920	24440
XWHM-244	2.440	2.602		0.200		0.078		2.584		0.086		2420	25110
XWHM-250	2.500	2.667		0.200		0.078		2.648		0.086		3080	25730
XWHM-253	2.531	2.700		0.200		0.078		2.681		0.086		3420	26050
XWHM-256	2.562	2.733	+0.030/-0.00	0.225		0.093		2.714		0.103		3760	29940
XWHM-262	2.625	2.801		0.225		0.093		2.781		0.103		4470	30680
XWHM-268	2.688	2.868		0.225		0.093		2.848		0.103		5200	31410
XWHM-275	2.750	2.934		0.225		0.093		2.914		0.103		5940	32140
XWHM-281	2.813	3.001		0.225		0.093		2.980		0.103		6700	32880
XWHM-283	2.834	3.027		0.225		0.093		3.006		0.103		17230	33120
XWHM-287	2.875	3.072		0.225		0.093		3.051		0.103		17880	33600
XWHM-300	3.000	3.204		0.225		0.093		3.182		0.103		18300	35060
XWHM-306	3.062	3.271	+0.035/-0.000	0.281		0.111		3.248		0.120		20130	42710
XWHM-312	3.125	3.338		0.281		0.111		3.315		0.120		20990	43590
XWHM-315	3.157	3.371		0.281		0.111		3.348		0.120		21420	44040
XWHM-325	3.250	3.470		0.281		0.111		3.446		0.120		22510	45330
XWHM-334	3.346	3.571		0.281		0.111		3.546		0.120		23650	46670
XWHM-347	3.464	3.701		0.281		0.111		3.675		0.120		25710	48320
XWHM-350	3.500	3.736		0.281		0.111		3.710		0.120		25980	48820
XWHM-354	3.543	3.781		0.281		0.111		3.755		0.120		26550	49420
XWHM-356	3.562	3.802		0.281		0.111		3.776		0.120		26940	49690
XWHM-362	3.625	3.868		0.281		0.111		3.841		0.120		27670	50560
XWHM-375	3.750	4.002		0.312	+0.004/-0.008	0.111		3.974		0.120		29690	52310
XWHM-387	3.875	4.136		0.312		0.111		4.107		0.120		31770	54050
XWHM-393	3.938	4.203		0.312		0.111		4.174		0.120		32850	54930
XWHM-400	4.000	4.270		0.312		0.111		4.240		0.120		33930	55800
XWHM-412	4.125	4.369		0.312		0.111		4.339		0.120		34990	57540
XWHM-425	4.250	4.501		0.312		0.111		4.470		0.120		36050	59280
XWHM-433	4.330	4.588		0.312		0.111		4.556		0.120		36730	60400
XWHM-450	4.500	4.768		0.312		0.111		4.735		0.120		38170	62770
XWHM-462	4.625	4.899		0.312		0.111		4.865		0.120		39230	64510
XWHM-475	4.750	5.030		0.312		0.111		4.995		0.120		41300	66260
XWHM-500	5.000	5.297		0.312		0.111		5.260		0.120		45950	69740
XWHM-525	5.250	5.559	+0.050/-0.000	0.350		0.127	±0.004	5.520	±0.007	0.139	+0.006/-0.000	50100	83790
XWHM-537	5.375	5.690		0.350		0.127		5.650		0.139		51290	85780
XWHM-550	5.500	5.810		0.350		0.127		5.770		0.139		52480	87780
XWHM-575	5.750	6.062		0.350		0.127		6.020		0.139		54870	91770
XWHM-600	6.000	6.314		0.350		0.127		6.270		0.139		57260	95760
XWHM-625	6.250	6.576	+0.055/-0.000	0.380		0.156	±0.005	6.530	±0.008	0.174	+0.008/-0.000	61850	122520
XWHM-650	6.500	6.838		0.380		0.156		6.790		0.174		66620	127420
XWHM-662	6.625	6.974		0.380		0.156		6.925		0.174		70240	129870
XWHM-675	6.750	7.105		0.380		0.156		7.055		0.174		73000	132320
XWHM-700	7.000	7.366		0.380		0.156		7.315		0.174		78180	137230
XWHM-725	7.250	7.628	+0.070/-0.000	0.418		0.187		7.575		0.209		83530	170370
XWHM-750	7.500	7.895		0.418		0.187		7.840		0.209		90120	176240
XWHM-775	7.750	8.157		0.418		0.187		8.100		0.209		95870	182120
XWHM-800	8.000	8.419		0.418		0.187		8.360		0.209		101790	187990
XWHM-825	8.250	8.680		0.437		0.187		8.620		0.209		107880	193870
XWHM-850	8.500	8.942		0.437		0.187		8.880		0.209		114160	199740
XWHM-875	8.750	9.209		0.437		0.187		9.145		0.209		122460	205620
XWHM-900	9.000	9.471		0.437		0.187		9.405		0.209		129140	211490
XWHM-925	9.250	9.737		0.437		0.187		9.669		0.209		137310	217370
XWHM-950	9.500	10.000		0.500	+0.005/-0.010	0.187		9.930		0.209		144380	223240
XWHM-975	9.750	10.260		0.500		0.187		10.189		0.209		150620	229120
XWHM-1000	10.000	10.523		0.500		0.187		10.450		0.209		159040	234990
XWHM-1025	10.250	10.786		0.500		0.187		10.711		0.209		167370	240870
XWHM-1050	10.500	11.047		0.500		0.187		10.970		0.209		174420	246740
XWHM-1075	10.750	11.313	+0.120/-0.00	0.500		0.187		11.234	±0.010	0.209		183890	252620
XWHM-1100	11.000	11.575		0.500		0.187		11.495		0.209		192830	258490
XWHM-1125	11.250	11.838		0.500		0.187		11.756		0.209		201190	264370
XWHM-1150	11.500	12.102		0.562		0.187		12.018		0.209		210540	270240
XWHM-1175	11.750	12.365		0.562		0.187		12.279		0.209		220100	276120
XWHM-1200	12.000	12.628		0.562		0.187		12.540		0.209		229020	281990
XWHM-1225	12.250	12.891		0.562		0.187		12.801		0.209		238990	287860
XWHM-1250	12.500	13.154		0.562		0.187		13.063		0.209		249170	293740
XWHM-1275	12.750	13.417		0.562		0.187		13.324	±0.012	0.209		258660	299610
XWHM-1300	13.000	13.680	+0.140/-0.000	0.662		0.187		13.585		0.209		269240	305490
XWHM-1325	13.250	13.943		0.662		0.187		13.846		0.209		279100	311360
XWHM-1350	13.500	14.207		0.662		0.187		14.108		0.209		290100	317240
XWHM-1375	13.750	14.470		0.662		0.187		14.369		0.209		301300	323110
XWHM-1400	14.000	14.732		0.662		0.187		14.630		0.209		311730	328990
XWHM-1425	14.250	14.995		0.662		0.187		14.891		0.209		323340	334860
XWHM-1450	14.500	15.259		0.750		0.187		15.153		0.209		335160	340740
XWHM-1475	14.750	15.522		0.750		0.187		15.414		0.209		346150	346610
XWHM-1500	15.000	15.785		0.750		0.187		15.675		0.209		358380	352490

With ISO9001: 2015 approval incorporating Design Status, our qualified engineering staff are able to offer a completely free of charge engineering service and are available to assist with part selection, custom design, application requirements, material selection and more.

Applications are discussed in-depth, first-off design data and drawings are submitted for approval to ensure our customers are provided with the correct design, first time. However, on those rare occasions when modifications are necessary, our no-tooling process and flexible manufacturing procedures means the production of prototypes is easily and economically achieved without onerous tooling charges and long lead times.

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