68 Series

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Metric dimensional series for limited space applications and light loads. It belongs to one kind of thin section bearings. 68 Series are produced open, shielded, sealed or with various combination of closures

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NKMB deep groove ball bearing parameter table (partial examples)

Model	d (mm)	D (mm)	B (mm)	Dynamic Load Cr (N)	Static Load Cor (N)	Balls × Diameter	Max Speed (Grease / Oil)	Weight (g)
683	3	7	2	347	102	6 × φ1.000	60,000 / 70,000	0.4
684	4	9	4	426	132	6 × φ1.200	50,000 / 60,000	0.7
685	5	11	5	720	237	6 × φ1.588	45,000 / 55,000	1.0
686	6	13	3.5/5	935	327	7 × φ1.588	40,000 / 48,000	1.6
687	7	14	3.5/5	1,056	400	7 × φ1.588	38,000 / 45,000	2.0
688	8	16	5	1,360	535	7 × φ2.000	36,000 / 43,000	3.0
689	9	17	5	1,488	596	7 × φ2.000	34,000 / 40,000	3.3
6800	10	19	5	1,600	670	7 × φ2.381	32,000 / 38,000	4.5
6801	12	21	5	1,860	800	7 × φ2.381	30,000 / 36,000	5.3
6802	15	24	5	2,240	1,020	8 × φ2.778	28,000 / 34,000	6.8
6803	17	26	5	2,460	1,200	8 × φ2.778	26,000 / 32,000	7.6
6804	20	32	7	4,080	2,120	9 × φ3.500	22,000 / 26,000	17.5
6805	25	37	7	4,950	2,650	9 × φ3.969	20,000 / 24,000	21.0
6806	30	42	7	5,450	3,100	10 × φ3.969	18,000 / 22,000	25.5
6807	35	47	7	5,850	3,500	10 × φ3.969	16,000 / 20,000	30.0
6808	40	52	7	6,400	3,900	10 × φ4.763	15,000 / 18,000	34.0
6809	45	58	7	7,400	4,500	10 × φ4.763	13,000 / 16,000	42.0
6810	50	65	7	8,000	5,100	11 × φ4.763	12,000 / 15,000	51.0

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NKMB bearings - the precision heart of the rotating world

NKMB deep groove ball bearing parameter table (partial examples)

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