Eaton Snap Rings > External Eaton Style Rings

External Notched Retaining Ring (EN)

External Eaton Style Rings: Notched Retaining Ring (EN)

See our EN External Notched Retaining Ring Chart below, which includes technical specifications such as:

External Notched Retaining Ring Dimensions
External Notched Retaining Ring Groove Dimensions
External Notched Retaining Ring Thrust Load
Plus More

You’ll also notice CAD drawings below to further assist you.

For more information, view all Eaton Rings, or feel free to download our EN external notched ring PDF or view our complete retaining ring catalog. If you do not see your desired specifications in our XAN external retaining ring size chart below, you can custom-design your own bearing snap ring right on our website!

Ring Specifications

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Specifications

Catalog Stock Sizes Available: 2.062″ to 5.000″
Custom Sizes Obtainable: 0.050″ to 60″
Standard Material: Carbon Spring Steel

External Notched Retaining Ring (EN)
Technical Drawing

Part Number	Shaft			Ring				Groove			Gap G Tolerance ±1/16″	Notch		Safe Working Thrust Load
	Diameter S			Free Diameter		Wire Section		Dia. C	Width A	Nom. Depth B		Depth ND +.000 −.030	Width NW Ref.
	Frac. inch	Dec. inch	mm	D inches	Tol. inches	W ±.005	T ±.002	Dia. C	Width A	Nom. Depth B		Depth ND +.000 −.030	Width NW Ref.
EN206	21/16	2.062	52.37	1.926				1.946		0.058				5,400
EN212	21/8	2.125	53.98	1.983		0.187		2.003		0.061		0.093		5,530
EN215	25/32	2.156	54.76	2.012				2.032		0.062				5,680
EN225	21/4	2.250	57.15	2.100				2.120		0.065				6,200
EN231	25/16	2.312	58.73	2.158	+0.000	0.203		2.178	0.086	0.067		0.100		6,580
EN237	23/8	2.375	60.33	2.219	-0.060		0.078	2.239	+0.005	0.068	0.375			6,870
EN243	27/16	2.438	61.93	2.279				2.299	-0.000	0.069				7,130
EN250	21/2	2.500	63.50	2.340				2.360		0.070				7,430
EN255	–	2.559	65.00	2.399				2.419		0.070				7,590
EN262	25/8	2.625	66.68	2.461				2.481		0.072				8,020
EN268	211/16	2.688	68.28	2.521				2.541		0.073				8,320
EN275	23/4	2.750	69.85	2.577		0.218		2.602		0.074		0.110		8,650
EN287	27/8	2.875	73.03	2.696				2.721		0.077				9,330
EN293	215/16	2.938	74.63	2.754				2.779		0.079				9,840
EN300	3	3.000	76.20	2.813				2.838		0.081				10,310
EN306	31/16	3.062	77.77	2.873			0.093	2.898	0.103	0.082				10,530
EN312	31/8	3.125	79.38	2.932				2.957	+0.005	0.084			0.125	11,170
EN315	35/32	3.156	80.16	2.961	+0.000			2.986	-0.000	0.085	0.500			11,370
EN325	31/4	3.250	82.55	3.051	-0.080			3.076		0.087				12,000
EN334	311/32	3.346	85.00	3.141				3.166		0.090				12,810
EN343	37/16	3.438	87.33	3.232		0.250		3.257		0.090		0.125		13,100
EN350	31/2	3.500	88.90	3.286				3.316		0.092				13,640
EN354	–	3.543	90.00	3.327				3.357		0.093				14,000
EN362	35/8	3.625	92.08	3.405				3.435		0.095				14,580
EN368	311/16	3.688	93.68	3.463				3.493		0.097				14,650
EN375	33/4	3.750	95.25	3.522				3.552		0.099				15,800
EN387	37/8	3.875	98.43	3.643				3.673	0.120	0.101	0.562			16,600
EN393	315/16	3.938	100.03	3.704		0.281	0.109	3.734	+0.005	0.102		0.150		17,040
EN400	4	4.000	101.60	3.762	+0.000			3.792	-0.000	0.104				17,640
EN425	41/4	4.250	107.95	4.025	-0.093			4.065		0.092				16,600
EN437	43/8	4.375	111.13	4.150				4.190		0.092				17,100
EN450	41/2	4.500	114.30	4.270				4.310		0.095	0.625			18,230
EN475	43/4	4.750	120.65	4.510		0.312		4.550		0.100		0.180		19,160
EN500	5	5.000	127.00	4.750				4.790		0.105				22,280

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