Guideline values for spacer ring width reduction – 72 .. D series


Increasing the preload (back-to-back)		Decreasing the preload (back-to-back)			Increasing the preload (face-to-face)		Decreasing the preload (face-to-face)

Bore diameter	Size	Requisite spacer ring width reduction of bearings in the series
Bore diameter		72 CD			72 ACD
d		a	b	c	a	b	c
mm	–	µm

7	7	4	5	8	2	4	6
8	8	4	6	9	3	4	7
9	9	4	6	9	3	4	7

10	00	4	6	9	3	4	7
12	01	5	7	10	3	5	7
15	02	6	8	12	4	5	8

17	03	6	9	13	4	6	10
20	04	6	10	14	4	6	10
25	05	6	10	14	4	6	10

30	06	8	11	16	5	8	12
35	07	9	13	19	6	9	14
40	08	9	13	19	6	9	14

45	09	10	15	21	7	10	16
50	10	10	15	21	7	10	16
55	11	11	16	24	7	11	18

60	12	11	16	24	7	11	18
65	13	12	18	26	8	13	19
70	14	12	18	26	8	13	19

75	15	12	18	26	8	13	19
80	16	13	19	28	9	14	21
85	17	14	21	30	9	14	22

90	18	16	24	37	11	17	26
95	19	17	26	38	12	18	28
100	20	19	28	40	12	19	30

105	21	19	29	42	13	20	30
110	22	19	29	42	13	20	30
120	24	21	31	45	14	21	33

130	26	21	31	45	14	21	33
140	28	21	31	45	14	21	33

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