Thin-Section Ball Bearings: 6700, 6800, 6900 and 16000 Size Chart

Same bore, four smaller envelopes

At a 25 mm bore the thin-section series give four different outside diameters and widths. The cross-section height is (D − d) / 2. A lower section saves space but carries less load.

Model	Series	d	D	B	Section height
6705	6700	25	32	4	3.5
6805	6800	25	37	7	6
6905	6900	25	42	9	8.5
16005	16000	25	47	8	11
6005	6000	25	47	12	11
6205	6200	25	52	15	13.5

How thin-section bearing numbers are built

Number or suffix	Meaning	Example
67xx	Thinnest metric series. Very low section, light load.	6705 = 25 × 32 × 4
68xx / 68x	Thin-section series. 681–689 are the miniature sizes.	6805 = 25 × 37 × 7
69xx / 69x	Slightly thicker than 68xx at the same bore.	6905 = 25 × 42 × 9
160xx	Same outside diameter as 60xx, narrower ring.	16005 = 25 × 47 × 8
ZZ / 2RS / 2RZ	Metal shields / contact rubber seals / non-contact rubber seals	6805 ZZ, 6805 2RS
N / NR	Snap-ring groove in the outer ring / groove with snap ring fitted	6805N, 6805NR

Thin-section bearing size charts

Each row is one size. Open, shielded, sealed and snap-ring versions that share the size are listed together and link to their model pages, where load ratings and drawings are given. Dimensions are in millimetres.

6700 series 6800 series 6900 series 16000 series

6700 series

d	D	B	Models
10	15	4	6700
12	18	4	6701
15	21	4	6702
17	23	4	6703
20	27	4	6704
25	32	4	6705
30	37	4	6706
35	44	5	6707
40	50	6	6708
45	55	6	6709
50	62	6	6710
55	68	7	6711

6800 series (incl. 681–689 miniature)

d	D	B	Models
1	3	1	681
1.5	4	1.2	68-1.5 681X
1.5	4	2	68-1.5 ZZ 681XZZ
2	5	1.5	682
2.5	6	1.8	68-2.5 68-2.5 ZZ 682X
2.5	6	2.6	682XZZ
3	7	2	683 683A
4	9	2.5	684 684A
4	9	4	684AZZ1
5	11	3	685
6	13	3.5	686 686A
6	13	5	686A 2RS 686A 2RZ 686ADD 686AVV 686AZZ1
7	14	3.5	687
7	14	5	687 2RS 687 2RZ 687DD 687VV 687ZZ1
8	16	4	688 688A
8	16	5	688A 2RS 688A 2RZ 688ADD 688AVV 688AZZ1
9	17	4	689
9	17	5	689 2RS 689 2RZ 689DD 689VV 689ZZ1
10	19	5	6800 6800 2RS 6800 2RZ 6800 ZZ
12	21	5	6801 6801 2RS 6801 2RZ 6801 ZZ
15	24	5	6802 6802 2RS 6802 2RZ 6802 ZZ
17	26	5	6803 6803 2RS 6803 2RZ 6803 ZZ
20	32	7	6804 6804 2RS 6804 2RZ 6804 ZZ
25	37	7	6805 6805 2RS 6805 2RZ 6805 ZZ 6805N 6805NR
30	42	7	6806 6806 2RS 6806 2RZ 6806 ZZ 6806N 6806NR
35	47	7	6807 6807 2RS 6807 2RZ 6807 ZZ 6807N 6807NR
40	52	7	6808 6808 2RS 6808 2RZ 6808 ZZ 6808N 6808NR
45	58	7	6809 6809 2RS 6809 2RZ 6809 ZZ 6809N 6809NR
50	65	7	6810 6810 2RS 6810 2RZ 6810 ZZ 6810N 6810NR
55	72	9	6811 6811 2RS 6811 2RZ 6811 ZZ
60	78	10	6812 6812 2RS 6812 2RZ 6812 ZZ
65	85	10	6813 6813 2RS 6813 2RZ 6813 ZZ
70	90	10	6814 6814 2RS 6814 2RZ 6814 ZZ
75	95	10	6815 6815 2RS 6815 2RZ 6815 ZZ

6900 series (incl. 691–699 miniature)

d	D	B	Models
1	4	1.6	691
1.5	5	2	69-1.5 691X
1.5	5	2.6	69-1.5 ZZ 691XZZ
2	6	2.3	692
2.3	7	2.5	69-2.3 69-2.3 ZZ
2.5	7	2.5	69-2.5 69-2.5 ZZ 692X
2.5	7	3.5	692XZZ
3	8	4	693
4	11	4	694
5	13	4	695 695 2RS 695 2RZ 695DD 695VV 695ZZ1
6	15	5	696 696 2RS 696 2RZ 696DD 696VV 696ZZ1
7	17	5	697 697 2RS 697DD 697VV 697ZZ1
7	19	5	697 2RZ
8	19	6	698 698 2RS 698 2RZ 698DD 698VV 698ZZ1
9	20	6	699 699 2RS 699 2RZ 699DD 699VV 699ZZ1
10	22	6	6900 6900 2RS 6900 2RZ 6900 ZZ
12	24	6	6901 6901 2RS 6901 2RZ 6901 ZZ
15	28	7	6902 6902 2RS 6902 2RZ 6902 ZZ
17	30	7	6903 6903 2RS 6903 2RZ 6903 ZZ
20	37	9	6904 6904 2RS 6904 2RZ 6904 ZZ
25	42	9	6905 6905 2RS 6905 2RZ 6905 ZZ 6905N 6905NR
30	47	9	6906 6906 2RS 6906 2RZ 6906 ZZ 6906N 6906NR
35	55	10	6907 6907 2RS 6907 2RZ 6907 ZZ 6907N 6907NR
40	62	12	6908 6908 2RS 6908 2RZ 6908 ZZ 6908N 6908NR
45	68	12	6909 6909 2RS 6909 2RZ 6909 ZZ 6909N 6909NR
50	72	12	6910 6910 2RS 6910 2RZ 6910 ZZ 6910NR
51	72	12	6910N
55	80	13	6911 6911 2RS 6911 2RZ 6911 ZZ
60	85	13	6912 6912 2RS 6912 2RZ 6912 ZZ
65	90	13	6913 6913 2RS 6913 2RZ 6913 ZZ
70	100	16	6914 6914 2RS 6914 2RZ 6914 ZZ
75	105	16	6915 6915 2RS 6915 2RZ 6915 ZZ

16000 series

d	D	B	Models
10	28	8	16100
12	28	7	16001 16001 ZZ
12	30	8	16101
15	32	8	16002 16002 ZZ
17	35	8	16003 16003 ZZ
20	42	8	16004 16004 ZZ
25	47	8	16005 16005 ZZ
30	55	9	16006 16006 ZZ
35	62	9	16007 16007 ZZ
40	68	9	16008
40	69	10	16008 ZZ
45	75	10	16009 16009 ZZ
50	80	10	16010 16010 ZZ
55	90	11	16011 16011 ZZ
60	95	11	16012 16012 ZZ
65	100	11	16013 16013 ZZ
70	110	13	16014 16014 ZZ
75	115	13	16015 16015 ZZ
80	125	14	16016
85	130	14	16017
90	140	16	16018
95	145	16	16019
100	150	16	16020
105	160	18	16021
110	170	19	16022
120	180	19	16024
130	200	22	16026
140	210	22	16028
150	225	24	16030
160	240	25	16032
170	260	28	16034
180	280	31	16036
190	290	31	16038
200	310	34	16040

Dimensions are the same as on each model page. For miniature sizes the shielded version can be wider than the open one, so it is listed in its own row.

Design checks for thin rings

A thin ring takes the shape of its seat. Shaft and housing roundness errors pass straight into the raceway, so check seat roundness, not only diameter.
Heavy interference fits shrink the internal clearance more on thin rings. Choose the fit and clearance together.
Load ratings are lower than 60xx or 62xx at the same bore. Compare the rating on the model page with the actual load.
Thin rings deform easily when pressed in. Press only on the ring that carries the fit.

Custom thin-section bearings

We also make non-catalog thin-wall sizes to drawing. Send d, D, B, seal type, clearance, speed and quantity. We check whether a catalog size fits first and, if not, confirm feasibility and lead time before quoting.

Frequently asked questions

What is the difference between 6800 and 6900 bearings?

Both have the same bore for the same last two digits. A 6900 bearing has a larger outside diameter and width than a 6800 bearing, so it carries more load and needs more radial space.

Is a 16000 bearing interchangeable with a 6000 bearing?

They share bore and outside diameter, but a 16000 bearing is narrower. It fits the same bore and housing only if the narrower width is acceptable axially.

What do N and NR mean on a 6805N or 6805NR?

N means the outer ring has a snap-ring groove. NR means the groove is supplied with the snap ring fitted. The ring locates the bearing in the housing.

Which is better for a thin-section bearing, 2RS or 2RZ?

2RS contact seals keep out more dirt but add friction. 2RZ non-contact seals run with less friction and suit higher speeds in clean conditions.

Thin-section bearings for robot joints and servo motors →Deep groove ball bearing series guide →Bearing size chart by series →Flanged miniature bearings →All deep groove and miniature bearings →

Thin-Section Ball Bearings: 6700, 6800, 6900 and 16000 Series