Disc Springs for Ball Bearing

Disc Springs for Ball Bearing, also be known as “Bearing Preload Disc Springs”, they are assembled with the radial ball bearings, act as a compensator of thermal expansions during their working.

Product Description

Description

Disc Springs for Ball Bearing, also be known as “Bearing Preload Disc Springs”, they are assembled with the radial ball bearings, act as a compensator of thermal expansions during their working.

Using Disc Springs to preload radial ball bearings, helps to maintain positioning accuracy, eliminate shaft end play, and minimize vibration and shaft deflection by distributing the load evenly around the bearing race, extends the bearing life, eliminate excessive running noise. In most cases, the outer race of the ball bearing is preloaded with the Disc Spring, and in some cases it is desirable to preload the inner race of ball bearing.

The recommended load value is achieved when the disc spring is deflected to 75% of the initial cone heights (ho). The proper designed ho/t ratio makes a load of disc spring remains nearly constant for a large deflection range.

Disc springs are designed to operate within 20%-80% of their total deflection. Misuse can result in overload, bigger error, or premature fatigue failure. If your working environment requires disc springs to work outside this range, HEGONG SPRING ® engineers can provide guidance or recommend other solutions.

In case use disc spring stacks, it is noting that the ho/t ratio in excess of 1.50 could cause disc springs to invert and collapse.

OD of Disc Springs for Ball Bearing is 9.8 – 358mm (0.386’-14.1’)

Specification:

HEGONG Part No.	Dimension of Ball Bearings		Dimension of Disc Springs(mm)				Load charateristics
	Dimension of Ball Bearings		Dimension of Disc Springs(mm)				f=0.5ho		f=0.75ho
	D	d	D	d	t	Ho	F(N)	f(mm)	F(N)	f(mm)
DB-001	10	3	9.8	6.2	0.2	0.4	19	0.1	24	0.15
DB-002	13	4	12.8	7.2	0.25	0.5	24	0.12	29	0.19
DB-003	16	5、4	15.8	8.2	0.25	0.55	20	0.15	23	0.22
DB-004	19	6、5	18.8	9.2	0.3	0.65	26	0.17	31	0.26
DB-005	19	7	18.8	10.2	0.35	0.7	40	0.17	51	0.26
DB-006	22	6、7	21.8	12.3	0.35	0.75	38	0.2	46	0.3
DB-007	24	9、8	23.7	14.3	0.4	0.9	69	0.25	80	0.37
DB-008	26	10、7、9	25.7	14.3	0.4	0.9	54	0.25	64	0.37
DB-009	28	12、8	27.7	17.3	0.4	1	73	0.3	80	0.45
DB-010	30	10	29.7	17.3	0.4	1.1	80	0.35	82	0.52
DB-011	32	15、12	31.7	20.4	0.4	1.1	79	0.35	81	0.52
DB-012	35	10	34.6	20.4	0.4	1.1	60	0.35	61	0.52
DB-013	35	17、15	34.6	22.4	0.5	1.2	106	0.35	119	0.52
DB-014	37	12	36.6	20.4	0.5	1.3	103	0.4	111	0.6
DB-015	40	17	39.6	25.5	0.5	1.3	103	0.4	111	0.6
DB-016	42	20、15	41.6	25.5	0.5	1.4	111	0.45	114	0.67
DB-017	47	25、17、20	46.5	30.5	0.5	1.5	121	0.45	118	0.75
DB-018	52	25、20	51.5	35.5	0.6	1.5	123	0.45	135	0.67
DB-019	55	30	54.5	40.5	0.6	1.5	127	0.45	140	0.67
DB-020	62	35、25、30	61.5	40.5	0.7	1.8	164	0.55	186	0.82
DB-021	68	40	67.5	50.5	0.7	1.7	140	0.5	160	0.75
DB-022	72	30	71.5	45.5	0.7	2.1	190	0.7	185	1.05
DB-023	72	35	71.5	50.5	0.7	2.1	222	0.7	217	1.05
DB-024	75	45	74.5	55.5	0.8	1.9	186	0.55	212	0.82
DB-025	80	35	79.5	50.5	0.8	2.3	228	0.75	228	1.12
DB-026	80	50、40	79.5	55.5	0.8	2.3	264	0.75	264	1.12
DB-027	85	45	84.5	60.5	0.9	2.5	352	0.8	357	1.2
DB-028	90	40	89.5	60.5	0.9	2.5	279	0.8	288	1.2
DB-029	90	55、50	89.5	65.5	0.9	2.5	329	0.8	333	1.2
DB-030	95	60	94.5	75.5	1	2.2	271	0.6	324	0.9
DB-031	100	45	99	65.5	1	2.6	273	0.8	293	1.2
DB-032	100	65、55	99	70.5	1	2.6	312	0.8	333	1.2
DB-033	110	50	109	70.5	1.25	2.7	294	0.73	356	1.09
DB-034	110	70、60	109	75.5	1.25	2.7	326	0.73	394	1.09
DB-035	115	75	114	90.5	1.25	2.45	314	0.6	396	0.9
DB-036	120	55	119	75.5	1.25	2.8	270	0.78	319	1.16
DB-037	120	65	119	85.5	1.25	2.8	331	0.78	391	1.16
DB-038	125	80、70	124	90.5	1.25	3	392	0.88	441	1.31
DB-039	130	60	129	85.5	1.25	3.2	374	0.98	402	1.46
DB-040	130	80、75	129	95.5	1.25	3.2	466	0.98	510	1.46
DB-041	140	65	139	90.5	1.25	3.25	328	1	353	1.5
DB-042	140	90、80	139	101	1.25	3.25	398	1	426	1.5
DB-043	150	70	149	95.5	1.5	3.2	312	0.85	380	1.28
DB-044	150	85	149	106	1.5	3.2	368	0.85	448	1.28
DB-045	160	75	159	101	1.5	3.5	359	1	412	1.5
DB-046	160	90	159	111	1.5	3.5	415	1	476	1.5
DB-047	170	80	169	111	1.5	3.8	434	1.15	473	1.73
DB-048	170	95	169	121	1.5	3.8	497	1.15	542	1.73
DB-049	180	85	179	121	2	4.2	702	1.1	860	1.65
DB-050	180	100	179	126	2	4.2	760	1.1	933	1.65
DB-051	190	90	189	121	2	4.3	627	1.15	760	1.73
DB-052	190	105	189	131	2	4.3	715	1.15	862	1.73
DB-053	200	95	198	131	2	4.5	691	1.25	812	1.88
DB-054	200	110	198	141	2	4.5	791	1.25	931	1.88
DB-055	215	100	213	151	2.25	4.5	745	1.13	941	1.69
DB-056	215	120	213	151	2.25	4.5	745	1.13	941	1.69
DB-057	225	105	223	161	2.25	4.6	759	1.18	944	1.76
DB-058	230	130	228	161	2.25	4.95	868	1.35	1035	2.02
DB-059	240	110	238	161	2.25	5.25	883	1.5	1009	2.25
DB-060	250	140	248	171	2.5	5	795	1.25	1001	1.88
DB-061	260	120	258	171	2.5	5.5	926	1.5	1104	2.25
DB-062	270	150	268	181	2.5	5.7	989	1.6	1155	2.4
DB-063	280	130	278	181	2.5	6	1022	1.75	1153	2.62
DB-064	290	160	288	193	2.75	5.75	951	1.5	1169	2.25
DB-065	300	140	298	193	2.75	6.35	1152	1.8	1333	2.7
DB-066	310	170	308	202	3	6.1	1039	1.55	1298	2.32
DB-067	320	150	318	212	3	6.2	1035	1.6	1298	2.4
DB-068	320	180	318	212	3	6.2	1035	1.6	1298	2.4
DB-069	340	160	338	232	3	6.6	1189	1.8	1417	2.7
DB-070	340	190	338	232	3	6.6	1189	1.8	1417	2.7
DB-071	360	170	358	242	3	7.2	1350	2.1	1524	3.15
DB-072	360	200	358	242	3	7.2	1350	2.1	1524	3.15
DB-073	380	180	378	252	3.2	7.4	1352	2.1	1583	3.15
DB-074	400	190	398	262	3.5	7.7	1485	2.1	1772	3.15
DB-075	420	200	418	272	4	7.8	1548	1.9	1980	285

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