Buffer Ring Rod

ECLIPSE EBR – ROD BUFFER RING

EBR Rod Buffer Rings are linear, uni-directional, elastomer energized seals typically used in reciprocating hydraulic cylinder assemblies but available for a wide variety of industries and applications. Advantages include long wear life, low friction, and simple groove design. The geometry will provide controlled sealability during stroke extension while preventing pressure trapping and allowing fluid return during stroke retraction. The EBR profile will retrofit non-Eclipse seals designed for similar hardware.

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Typical Range of Application

Pressure

1,500 – 5,000 psi

[100 – 350 bar]

Temperature*

-30°F to 250°F

[-34°C to 121°C]

Velocity

13 fps [4 m/s]

Media

Hydraulic/Mineral Oil or similar

*Limited by O-Ring compound

Values and ratings in this catalog are based on industry standard applications operating under ideal conditions. The customer should assume responsiblity for validation testing of performance and suitabilty of Eclipse Engineering products. Eclipse Engineering accepts no liabilty for the accuracy and applicabilty of provided information.

ORDERING EXAMPLE:

EBR2-R-03000-ET010-N


EBR2	= Seal Ring Series
R	= Rod
03000	= Rod Diameter X 1000 (inches)
ET010	= Material Code
N	= O-Ring Material Code

CROSS SECTION SERIES	ØA ROD h9	ØB GROOVE H9	GROOVE WIDTH +0.008/ -0.000	E CLEARANCE (MAX)
CROSS SECTION SERIES	ØA ROD h9	ØB GROOVE H9	GROOVE WIDTH +0.008/ -0.000	1500 PSI	3000 PSI	5000 PSI
EBR0	0.125 – 0.313	ØA + 0.193	0.087	0.012	0.009	0.007
EBR1	0.313 – 0.750	ØA + 0.287	0.126	0.016	0.012	0.008
EBR2	0.750 – 1.500	ØA + 0.421	0.165	0.016	0.012	0.009
EBR3	1.500 – 8.000	ØA + 0.594	0.248	0.020	0.014	0.010
EBR4	8.000 – 10.000	ØA + 0.807	0.319	0.024	0.017	0.012
EBR5	10.000 – 25.000	ØA + 0.945	0.319	0.024	0.017	0.012

EBR STANDARD SEAL MATERIALS

ECLIPSE MATERIAL CODE	DESCRIPTION	COLOR	APPLICATIONS
ET010	Bronze filled PTFE	Brown	Standard material for hydraulics
ET020	Carbon Fiber filled PTFE	Black	Abrasive, heavy wear, extended life requirements
ET014	Polyimide filled PTFE	Orange/Brown	High sealabilty, soft hardware

See Eclipse Material Guide for complete list of available materials.

O-RING MATERIALS

ECLIPSE MATERIAL CODE	DESCRIPTION	HARDNESS SHORE A	TEMPERATURE RANGE
0 or blank	Seal provided without O-Ring	–	–
N	Nitrile (NBR)	70	-30°F to 250°F [-34°C to 121°C]
F	Fluorocarbon (FKM)	75	-15°F to 400°F [-26°C to 205°C]
E	Ethylene Propylene (EPDM)	70	-70°F to 250°F [-57°C to 121°C]

Full range of elastomer compounds available for specialty applications.

STANDARD PART NUMBERS

000 SERIES:

PART NUMBER	ROD Ø +0.000/-0.002	GROOVE Ø +0.002/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR0-R-00125	0.125	0.318	0.087/0.095	2-008
EBR0-R-00156	0.156	0.349		2-009
EBR0-R-00157	0.157 (4MM)	0.350		2-009
EBR0-R-00188	0.188	0.381		2-010
EBR0-R-00197	0.197 (5MM)	0.390		2-010
EBR0-R-00219	0.219	0.412		2-011
EBR0-R-00236	0.236 (6MM)	0.429		2-011
EBR0-R-00250	0.250	0.443		2-011
EBR0-R-00275	0.275 (7MM)	0.468		2-012
EBR0-R-00313	0.313	0.506		2-012

Consult Eclipse Engineering for all custom or unlisted sizes.

100 SERIES:

PART NUMBER	ROD Ø +0.000/-0.002	GROOVE Ø +0.002/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR1-R-00313	0.313	0.600	0.126/0.134	2-111
EBR1-R-00354	0.354 (9MM)	0.641		2-112
EBR1-R-00375	0.375	0.662		2-112
EBR1-R-00394	0.394 (10MM)	0.681		2-112
EBR1-R-00433	0.433 (11MM)	0.720		2-113
EBR1-R-00438	0.438	0.725		2-113
EBR1-R-00472	0.472 (12MM)	0.759		2-114
EBR1-R-00500	0.500	0.787		2-114
EBR1-R-00512	0.512 (13MM)	0.799		2-114
EBR1-R-00551	0.551 (14MM)	0.838		2-115
EBR1-R-00563	0.563	0.850		2-115
EBR1-R-00591	0.591 (15MM)	0.878		2-115

PART NUMBER	ROD Ø +0.000/-0.002	GROOVE Ø +0.002/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR1-R-00625	0.625	0.912	0.126/0.134	2-116
EBR1-R-00630	0.630 (16MM)	0.917		2-116
EBR1-R-00669	0.669 (17MM)	0.956		2-117
EBR1-R-00688	0.688	0.975		2-117
EBR1-R-00709	0.709 (18MM)	0.996		2-117
EBR1-R-00748	0.748 (19MM)	1.035		2-118
EBR1-R-00750	0.750	1.037		2-118

Consult Eclipse Engineering for all custom or unlisted sizes.

200 SERIES:

PART NUMBER	ROD Ø +0.000/-0.003	GROOVE Ø +0.003/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR2-R-00750	0.750	1.171	0.165/0.173	2-213
EBR2-R-00787	0.787 (20MM)	1.208		2-214
EBR2-R-00813	0.813	1.234		2-214
EBR2-R-00866	0.866 (22MM)	1.287		2-215
EBR2-R-00875	0.875	1.296		2-215
EBR2-R-00938	0.938	1.359		2-216
EBR2-R-00945	0.945 (24MM)	1.366		2-216
EBR2-R-01000	1.000	1.421		2-217
EBR2-R-01024	1.024 (26MM)	1.445		2-218
EBR2-R-01063	1.063	1.484		2-218
EBR2-R-01102	1.102 (28MM)	1.523		2-219
EBR2-R-01125	1.125	1.546		2-219
EBR2-R-01181	1.181 (30MM)	1.602		2-220
EBR2-R-01188	1.188	1.609		2-220
EBR2-R-01250	1.250	1.671		2-221

PART NUMBER	ROD Ø +0.000/-0.003	GROOVE Ø +0.003/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR2-R-01260	1.260 (32MM)	1.681	0.165/0.173	2-221
EBR2-R-01313	1.313	1.734		2-222
EBR2-R-01339	1.339 (34MM)	1.760		2-222
EBR2-R-01375	1.375	1.796		2-222
EBR2-R-01417	1.417 (36MM)	1.838		2-223
EBR2-R-01438	1.438	1.859		2-223
EBR2-R-01496	1.496 (38MM)	1.917		2-224
EBR2-R-01500	1.500	1.921		2-224

Consult Eclipse Engineering for all custom or unlisted sizes.

300 SERIES:

PART NUMBER	ROD Ø +0.000/-0.003	GROOVE Ø +0.003/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR3-R-01500	1.500	2.094	0.248/0.256	2-327
EBR3-R-01563	1.563	2.157		2-327
EBR3-R-01575	1.575 (40MM)	2.169		2-328
EBR3-R-01625	1.625	2.219		2-328
EBR3-R-01688	1.688	2.282		2-328
EBR3-R-01750	1.750	2.344		2-329
EBR3-R-01813	1.813	2.407		2-329
EBR3-R-01875	1.875	2.469		2-330
EBR3-R-01938	1.938	2.532		2-330
EBR3-R-01969	1.969 (50MM)	2.563		2-331
EBR3-R-02000	2.000	2.594		2-331
EBR3-R-02125	2.125	2.719		2-332
EBR3-R-02250	2.250	2.844		2-333
EBR3-R-02362	2.362 (60MM)	2.956		2-334
EBR3-R-02375	2.375	2.969		2-334

PART NUMBER	ROD Ø +0.000/-0.003	GROOVE Ø +0.003/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR3-R-02500	2.500	3.094	0.248/0.256	2-335
EBR3-R-02625	2.625	3.219		2-336
EBR3-R-02750	2.750	3.344		2-337
EBR3-R-02756	2.756 (70MM)	3.350		2-337
EBR3-R-02875	2.875	3.469		2-338
EBR3-R-03000	3.000	3.594		2-339
EBR3-R-03125	3.125	3.719		2-340
EBR3-R-03150	3.150 (80MM)	3.744		2-340
EBR3-R-03250	3.250	3.844		2-341
EBR3-R-03375	3.375	3.969		2-342
EBR3-R-03500	3.500	4.094		2-343
EBR3-R-03543	3.543 (90MM)	4.137		2-343
EBR3-R-03625	3.625	4.219		2-344
EBR3-R-03750	3.750	4.344		2-345
EBR3-R-03875	3.875	4.469		2-346

Consult Eclipse Engineering for all custom or unlisted sizes.

300 SERIES CONTINUED:

PART NUMBER	ROD Ø +0.000/-0.003	GROOVE Ø +0.003/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR3-R-03973	3.973 (100MM)	4.531	0.248/0.256	2-347
EBR3-R-04000	4.000	4.594		2-347
EBR3-R-04125	4.125	4.719		2-348
EBR3-R-04250	4.250	4.844		2-349
EBR3-R-04331	4.331 (110MM)	4.925		2-350
EBR3-R-04375	4.375	4.969		2-350
EBR3-R-04500	4.500	5.094		2-351
EBR3-R-04625	4.625	5.219		2-352
EBR3-R-04724	4.724 (120MM)	5.318		2-353
EBR3-R-04750	4.750	5.344		2-353
EBR3-R-04875	4.875	5.469		2-354
EBR3-R-05000	5.000	5.594		2-355
EBR3-R-05118	5.118 (130MM)	5.712		2-356
EBR3-R-05250	5.250	5.844		2-357
EBR3-R-05375	5.375	5.969		2-358

PART NUMBER	ROD Ø +0.000/-0.003	GROOVE Ø +0.003/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR3-R-05500	5.500	6.094	0.248/0.256	2-359
EBR3-R-05512	5.512 (140MM)	6.106		2-359
EBR3-R-05625	5.625	6.219		2-360
EBR3-R-05750	5.750	6.344		2-361
EBR3-R-05906	5.906 (150MM)	6.500		2-361
EBR3-R-06000	6.000	6.594		2-362
EBR3-R-06250	6.250	6.844		2-363
EBR3-R-06299	6.299 (160MM)	6.893		2-363
EBR3-R-06500	6.500	7.094		2-364
EBR3-R-06693	6.693 (170MM)	7.287		2-365
EBR3-R-06750	6.750	7.344		2-365
EBR3-R-07000	7.000	7.594		2-366
EBR3-R-07087	7.087 (180MM)	7.681		2-366
EBR3-R-07250	7.250	7.844		2-367
EBR3-R-07480	7.480 (190MM)	8.074		2-368

Consult Eclipse Engineering for all custom or unlisted sizes.

300 SERIES CONTINUED:

PART NUMBER	ROD Ø +0.000/-0.003	GROOVE Ø +0.003/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR3-R-07500	7.500	8.094	0.248/0.256	2-368
EBR3-R-07750	7.750	8.344		2-369
EBR3-R-07874	7.874 (200MM)	8.468		2-369
EBR3-R-08000	8.000	8.594		2-370

Consult Eclipse Engineering for all custom or unlisted sizes.

400 SERIES:

PART NUMBER	ROD Ø +0.000/-0.005	GROOVE Ø +0.005/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR4-R-08000	8.000	8.807	0.319/0.327	2-445
EBR4-R-08250	8.250	9.057		2-446
EBR4-R-08268	8.268 (210MM)	9.075		2-446
EBR4-R-08500	8.500	9.307		2-446
EBR4-R-08661	8.661 (220MM)	9.468		2-447
EBR4-R-09000	9.000	9.807		2-447
EBR4-R-09055	9.055 (230MM)	9.862		2-448
EBR4-R-09250	9.250	10.057		2-448
EBR4-R-09449	9.449 (240MM)	10.256		2-448
EBR4-R-09500	9.500	10.307		2-448
EBR4-R-09750	9.750	10.557		2-449
EBR4-R-09843	9.843 (250MM)	10.650		2-449
EBR4-R-10000	10.000	10.807		2-449

Consult Eclipse Engineering for all custom or unlisted sizes.

500 SERIES

PART NUMBER	ROD Ø +0.000/-0.006	GROOVE Ø +0.006/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR5-R-10000	10.000	10.945	0.319/0.327	2-450
EBR5-R-10500	10.500	11.445		2-451
EBR5-R-10827	10.827 (275MM)	11.772		2-451
EBR5-R-11000	11.000	11.945		2-452
EBR5-R-11500	11.500	12.445		2-453
EBR5-R-11811	11.811 (300MM)	12.756		2-453
EBR5-R-12000	12.000	12.945		2-454
EBR5-R-12500	12.500	13.445		2-454
EBR5-R-12795	12.795 (325MM)	13.740		2-455
EBR5-R-13000	13.000	13.945		2-455
EBR5-R-13500	13.500	14.445		2-456
EBR5-R-13780	13.780 (350MM)	14.725		2-457
EBR5-R-14000	14.000	14.945		2-457
EBR5-R-14500	14.500	15.445		2-458
EBR5-R-15000	15.000	15.945		2-459

PART NUMBER	ROD Ø +0.000/-0.006	GROOVE Ø +0.006/-0.000	GROOVE WIDTH	O-RING DASH SIZE
EBR5-R-15748	15.748 (400MM)	16.693	0.319/0.327	2-461
EBR5-R-16000	16.000	16.945		2-461
EBR5-R-17000	17.000	17.945		2-463
EBR5-R-17717	17.717 (450MM)	18.662		2-465
EBR5-R-18000	18.000	18.945		2-465
EBR5-R-19000	19.000	19.945		2-467
EBR5-R-19685	19.685 (500MM)	20.630		2-469
EBR5-R-20000	20.000	20.945		2-469