Miniature Ball Bearings

Miniature ball bearings are one of the classifications under ball bearings . Usually,miniature ball bearings are also called miniature bearings,mini ball bearings and mini bearings in different places. Zhangzhou Runstar Bearings manufacturing co.;Ltd is a professional miniature ball bearing manufacturer since 2007, certified ISO9001:2015. In Runstar Bearing, miniature ball bearings are usually referred to a ball bearing from a bore diameter of 1mm to 10mm. they are usually called as instrument bearings or micro bearings that are widely used in widely used in the fields of precision instrument,home application,medical device,massage equipment,sports equipment,textile machinery,woodworking machinery,motor,power tool,water pump,air compressor,fishing reel and Yoyo etcs.Miniature ball bearings from Runstar can be chrome steel,stainless steel or hybrid ceramic, with a precision tolerance from ABEC-1 to ABEC 9 ,customized miniature ball bearings are accepted for special application in Runstar.

Metric Miniature Ball Bearings

Metric Flange Miniature Bearing

Inch Miniature Ball Bearings

Inch Flange Miniature Ball Bearings

Metric Miniature Ball Bearings

Metric miniature ball bearings is one of the classifications under miniature ball bearings. Metric miniature ball bearings are referred to miniature ball bearing with metric dimension. Runstar Bearing make both metric miniature ball bearing and inch miniature ball bearings for industries,we have full metric dimention of Miniature Ball Bearings from 1mm to 10mm for bore size.There are MR series(MR52-MR148ZZ),68 series(681-689),69 series(691-699),60 series(602-609),62 series(623-629) and 63 series(633-639) for metric miniature ball bearing in Runstar. The precision tolerance of metric miniature ball bearing is from ABEC-1 to ABEC 9, and the material of metric miniature ball bearing can be chrome steel（Gcr15） or stainless steel(440 or 420) at request, custom-made products is accepted in Runstar.All Runstar’s Metric Miniature Ball Bearings are strictly controlled under ISO9001:2015.

PART NUMBER	SEAL TYPE	Bore diameter(d)	Outer diameter(D)	Width(B)	BALL SIZE(mm)	BALL QTY	weight(g)
681	open	1	3	1	0.6	6	0.03
691	open	1	4	1.6	0.8	5	0.11
681X	open	1.5	4	1.2	0.6	7	0.1
681XZZ	Shield	1.5	4	2	0.6	7	0.14
691X	open	1.5	5	2	0.6	6	0.2
691XZZ	Shield	1.5	5	2.6	0.6	6	0.25
601X	open	1.5	6	2.5	1.2	6	0.31
601XZZ	Shield	1.5	6	3	1.2	6	0.4
682	open	2	5	1.5	0.8	6	0.15
682zz	Shield	2	5	2.3	0.8	6	0.2
682-2RS	Rubber seal	2	5	2.3	0.8	6	0.2
MR52	open	2	5	2	0.8	6	0.14
MR52ZZ	Shield	2	5	2.5	0.8	6	0.2
MR52-2RS	Rubber seal	2	5	2.5	0.8	6	0.2
692	open	2	6	2.3	1.2	6	0.28
692ZZ	Shield	2	6	3	1.2	6	0.35
692-2RS	Rubber seal	2	6	3	1.2	6	0.35
MR62	open	2	6	2.5	1.2	6	0.28
MR62ZZ	Shield	2	6	2.5	1.2	6	0.33
MR62-2RS	Rubber seal	2	6	2.5	1.2	6	0.33
MR72	open	2	7	2.5	1.2	7	0.43
MR72ZZ	Shield	2	7	3	1.2	7	0.53
MR72-2RS	Rubber seal	2	7	3	1.2	7	0.53
602	open	2	7	2.8	1.2	7	0.5
602ZZ	Shield	2	7	3.5	1.2	7	0.6
602-2RS	Rubber seal	2	7	3.5	1.2	7	0.6
682X	open	2.5	6	1.8	0.8	8	0.2
682XZZ	Shield	2.5	6	2.6	0.8	8	0.35
682X-2RS	Rubber seal	2.5	6	2.6	0.8	8	0.35
692X	open	2.5	7	2.5	1.2	7	0.4
692XZZ	Shield	2.5	7	3.5	1.2	7	0.55
692X-2RS	Rubber seal	2.5	7	3.5	1.2	7	0.55
MR82X	open	2.5	8	2.5	1.588	6	0.52
MR82XZZ	Shield	2.5	8	2.5	1.588	6	0.52
MR82X-2RS	Rubber seal	2.5	8	2.5	1.588	6	0.52
602X	open	2.5	8	2.8	1.588	6	0.61
602XZZ	Shield	2.5	8	4	1.588	6	0.85
602X-2RS	Rubber seal	2.5	8	4	1.588	6	0.85
MR63	open	3	6	2	0.8	8	0.2
MR63ZZ	Shield	3	6	2.5	0.8	8	0.28
MR63-2RS	Rubber seal	3	6	2.5	0.8	8	0.28
683	open	3	7	2	1	8	0.32
683ZZ	Shield	3	7	3	1	8	0.45
683-2RS	Rubber seal	3	7	3	1	8	0.45
MR83	open	3	8	2.5	1.2	7	0.51
MR83ZZ	Shield	3	8	3	1.2	7	0.67
MR83-2RS	Rubber seal	3	8	3	1.2	7	0.67
693	open	3	8	3	1.2	7	0.6
693ZZ	Shield	3	8	4	1.2	7	0.8
693-2RS	Rubber seal	3	8	4	1.2	7	0.8
MR93	open	3	9	2.5	1.588	6	0.75
MR93ZZ	Shield	3	9	4	1.588	6	1.15
MR93-2RS	Rubber seal	3	9	4	1.588	6	1.15
603	open	3	9	3	1.588	6	0.84
603ZZ	Shield	3	9	5	1.588	6	1.13
603-2RS	Rubber seal	3	9	5	1.588	6	1.13
623	open	3	10	4	1.588	7	1.45
623ZZ	Shield	3	10	4	1.588	7	1.65
623-2RS	Rubber seal	3	10	4	1.588	7	1.65
633	open	3	13	5	2.381	7	3.27
633ZZ	Shield	3	13	5	2.381	7	3.43
633-2RS	Rubber seal	3	13	5	2.381	7	3.43
MR74	open	4	7	2	1	8	0.23
MR74ZZ	Shield	4	7	2.5	1	8	0.33
MR74-2RS	Rubber seal	4	7	2.5	1	8	0.33
MR84	open	4	8	2	1.2	7	0.39
MR84ZZ	Shield	4	8	3	1.2	7	0.56
MR84-2RS	Rubber seal	4	8	3	1.2	7	0.56
684	open	4	9	2.5	1.588	7	0.65
684ZZ	Shield	4	9	4	1.588	7	1
684-2RS	Rubber seal	4	9	4	1.588	7	1
MR104	open	4	10	3	1.588	8	0.96
MR104ZZ	Shield	4	10	4	1.588	8	1.33
MR104-2RS	Rubber seal	4	10	4	1.588	8	1.33
694	open	4	11	4	2	7	1.69
694ZZ	Shield	4	11	4	2	7	1.75
694-2RS	Rubber seal	4	11	4	2	7	1.75
604	open	4	12	4	2	7	2.19
604ZZ	Shield	4	12	4	2	7	2.34
604-2RS	Rubber seal	4	12	4	2	7	2.34
624	open	4	13	5	2.381	7	3.1
624ZZ	Shield	4	13	5	2.381	7	3.2
624-2RS	Rubber seal	4	13	5	2.381	7	3.2
634	open	4	16	5	2.381	7	5.24
634ZZ	Shield	4	16	5	2.381	7	5.44
634-2RS	Rubber seal	4	16	5	2.381	7	5.44
MR85	open	5	8	2	1	8	0.25
MR85ZZ	Shield	5	8	2.5	1	8	0.34
MR85-2RS	Rubber seal	5	8	2.5	1	8	0.34
MR95	open	5	9	2.5	1.2	8	0.54
MR95ZZ	Shield	5	9	3	1.2	8	0.58
MR95-2RS	Rubber seal	5	9	3	1.2	8	0.58
MR105	open	5	10	3	1.2	8	0.58
MR105ZZ	Shield	5	10	4	1.2	8	0.62
MR105-2RS	Rubber seal	5	10	4	1.2	8	0.62
MR115	open	5	11	4	1.588	8	0.62
MR115ZZ	Shield	5	11	4	1.588	8	0.62
MR115-2RS	Rubber seal	5	11	4	1.588	8	0.62
685	open	5	11	3	1.588	8	1.16
685ZZ	Shield	5	11	5	1.588	8	1.93
685-2RS	Rubber seal	5	11	5	1.588	8	1.93
695	open	5	13	4	2	8	2.31
695ZZ	Shield	5	13	4	2	8	2.39
695-2RS	Rubber seal	5	13	4	2	8	2.39
605	open	5	14	5	2.381	7	3.46
605ZZ	Shield	5	14	5	2.381	7	3.75
605-2RS	Rubber seal	5	14	5	2.381	7	3.75
625	open	5	16	5	2.778	7	4.95
625ZZ	Shield	5	16	5	2.778	7	5.1
625-2RS	Rubber seal	5	16	5	2.778	7	5.1
635	open	5	19	6	3.5	6	8.5
635ZZ	Shield	5	19	6	3.5	6	8.89
635-2RS	Rubber seal	5	19	6	3.5	6	8.89
MR106	open	6	10	2.5	1.2	10	0.55
MR106ZZ	Shield	6	10	3	1.2	10	0.7
MR106-2RS	Rubber seal	6	10	3	1.2	10	0.7
MR126	open	6	12	3	1.588	8	1.25
MR126ZZ	Shield	6	12	4	1.588	8	1.66
MR126-2RS	Rubber seal	6	12	4	1.588	8	1.66
686	open	6	13	3.5	2	8	1.87
686ZZ	Shield	6	13	5	2	8	2.68
686-2RS	Rubber seal	6	13	5	2	8	2.68
696	open	6	15	5	2.381	7	3.65
696ZZ	Shield	6	15	5	2.381	7	3.85
696-2RS	Rubber seal	6	15	5	2.381	7	3.85
606	open	6	17	6	3.5	6	5.94
606ZZ	Shield	6	17	6	3.5	6	6.89
606-2RS	Rubber seal	6	17	6	3.5	6	6.89
626	open	6	19	6	3.5	6	8.12
626ZZ	Shield	6	19	6	3.5	6	8.65
626-2RS	Rubber seal	6	19	6	3.5	6	8.65
636	open	6	22	7	3.969	7	13.9
636ZZ	Shield	6	22	7	3.969	7	14.5
636-2RS	Rubber seal	6	22	7	3.969	7	14.5
MR117	open	7	11	2.5	1.2	9	0.59
MR117ZZ	Shield	7	11	3	1.2	9	0.71
MR117-2RS	Rubber seal	7	11	3	1.2	9	0.71
MR137	open	7	13	3	1.2	12	1.52
MR137ZZ	Shield	7	13	4	1.2	12	2.01
MR137-2RS	Rubber seal	7	13	4	1.2	12	2.01
687	open	7	14	3.5	2	9	2.03
687ZZ	Shield	7	14	5	2	9	2.95
687-2RS	Rubber seal	7	14	5	2	9	2.95
687ZZB4	Shield	7	14	4	2	9	2.9
697	open	7	17	5	2	9	5.01
697ZZ	Shield	7	17	5	2	9	5.26
697-2RS	Rubber seal	7	17	5	2	9	5.26
607	open	7	19	6	3.5	6	7.8
607ZZ	Shield	7	19	6	3.5	6	8.24
607-2RS	Rubber seal	7	19	6	3.5	6	8.24
627	open	7	22	7	3.969	7	12.7
627ZZ	Shield	7	22	7	3.969	7	13.1
627-2RS	Rubber seal	7	22	7	3.969	7	13.1
637	open	7	26	9	4.762	7	24.2
637ZZ	Shield	7	26	9	4.762	7	25.8
637-2RS	Rubber seal	7	26	9	4.762	7	25.8
MR128	open	8	12	2.5	1.2	12	0.7
MR128ZZ	Shield	8	12	3.5	1.2	12	0.99
MR128-2RS	Rubber seal	8	12	3.5	1.2	12	0.99
MR148	open	8	14	3.5	1.588	10	1.9
MR148ZZ	Shield	8	14	4	1.588	10	2.19
MR148-2RS	Rubber seal	8	14	4	1.588	10	2.19
MR148ZZB3.5	Shield	8	14	3.5	1.588	10	2
688	open	8	16	4	2	10	3.11
688ZZ	Shield	8	16	5	2	10	4.05
688-2RS	Rubber seal	8	16	5	2	10	4.05
688ZZB4	Shield	8	16	4	2	10	3.50
698	open	8	19	6	3.175	7	7.12
698ZZ	Shield	8	19	6	3.175	7	7.57
698-2RS	Rubber seal	8	19	6	3.175	7	7.57
608	open	8	22	7	3.969	7	11.8
608ZZ	Shield	8	22	7	3.969	7	12.9
608-2RS	Rubber seal	8	22	7	3.969	7	12.9
628	open	8	24	8	3.969	7	17.1
628ZZ	Shield	8	24	8	3.969	7	18.5
628-2RS	Rubber seal	8	24	8	3.969	7	18.5
638	open	8	28	9	4.762	7	28.1
638ZZ	Shield	8	28	9	4.762	7	30.3
638-2RS	Rubber seal	8	28	9	4.762	7	30.3
679	open	9	14	3	1.588	12	1.35
679ZZ	Shield	9	14	4.5	1.588	12	1.98
679-2RS	Rubber seal	9	14	4.5	1.588	12	1.98
689	open	9	17	4	2	11	3.41
689ZZ	Shield	9	17	5	2	11	4.38
689-2RS	Rubber seal	9	17	5	2	11	4.38
699	open	9	20	6	3.175	8	8.38
699ZZ	Shield	9	20	7	3.175	8	8.54
699-2RS	Rubber seal	9	20	7	3.175	8	8.54
609	open	9	24	7	3.175	8	14.7
609ZZ	Shield	9	24	7	3.175	8	16
609-2RS	Rubber seal	9	24	7	3.175	8	16
629	open	9	26	8	4.762	7	19
629ZZ	Shield	9	26	8	4.762	7	21.8
629-2RS	Rubber seal	9	26	8	4.762	7	21.8
639	open	9	30	10	4.762	7	36.2
639ZZ	Shield	9	30	10	4.762	7	37.1
639-2RS	Rubber seal	9	30	10	4.762	7	37.1

Metric Flange Miniature Bearing

Metric Flange miniature bearings is one of the classifications under miniature ball bearings. Metric Flange miniature bearings are referred to miniature ball bearing with metric dimension and with flange. Compared with Metric miniature ball bearing(without flange), the Metric Flange miniature bearings can be used for the connection and positioning of parts in applications.Runstar specilize in manufacturing Metric flange miniature bearings for industries,we have full series of Metric flange miniature bearings from 1mm to 10mm for bore size. There are MF series(MF52-MF148),F68 series(F681-F689),F69 series(F691-F699),F60 series(F602-F609),F62 series(F623-F629) and F63 series(F633-F639) for metric Flange miniature bearings in Runstar.Runstar design and manufacture metric flange miniature bearings with a precision tolerance from ABEC 1 to ABEC 9 for choice,and the material of metric flange miniature bearings can be chrome steel（Gcr15） ,stainless steel(440 or 420) or hybrid ceramic at request, Customized metric flange miniature bearings is accepted in Runstar.

PART NUMBER	SEAL TYPE	Bore diameter(d)	Outer diameter(D)	Width(B)	BALL SIZE(mm)	BALL QTY	weight(g)
F681X	open	1.5	4	1.2	0.6	7	0.1
F681xzz	Shield	1.5	4	2	0.6	7	0.14
F691X	open	1.5	5	2	0.6	6	0.2
F691XZZ	Shield	1.5	5	2.6	0.6	6	0.25
F601X	open	1.5	6	2.5	1.2	6	0.31
F601XZZ	Shield	1.5	6	3	1.2	6	0.4
F682	open	2	5	1.5	0.8	6	0.15
F682zz	Shield	2	5	2.3	0.8	6	0.2
F682-2RS	Rubber seal	2	5	2.3	0.8	6	0.2
MF52	open	2	5	2	0.8	6	0.14
MF52ZZ	Shield	2	5	2.5	0.8	6	0.2
MF52-2RS	Rubber seal	2	5	2.5	0.8	6	0.2
F692	open	2	6	2.3	1.2	6	0.28
F692ZZ	Shield	2	6	3	1.2	6	0.35
F692-2RS	Rubber seal	2	6	3	1.2	6	0.35
MF62	open	2	6	2.5	1.2	6	0.28
MF62ZZ	Shield	2	6	2.5	1.2	6	0.33
MF62-2RS	Rubber seal	2	6	2.5	1.2	6	0.33
MF72	open	2	7	2.5	1.2	7	0.43
MF72ZZ	Shield	2	7	3	1.2	7	0.53
MF72-2RS	Rubber seal	2	7	3	1.2	7	0.53
F602	open	2	7	2.8	1.2	7	0.5
F602ZZ	Shield	2	7	3.5	1.2	7	0.6
F602-2RS	Rubber seal	2	7	3.5	1.2	7	0.6
F682X	open	2.5	6	1.8	0.8	8	0.2
F682XZZ	Shield	2.5	6	2.6	0.8	8	0.35
F682X-2RS	Rubber seal	2.5	6	2.6	0.8	8	0.35
F692X	open	2.5	7	2.5	1.2	7	0.4
F692XZZ	Shield	2.5	7	3.5	1.2	7	0.55
F692X-2RS	Rubber seal	2.5	7	3.5	1.2	7	0.55
MF82X	open	2.5	8	2.5	1.588	6	0.52
MF82XZZ	Shield	2.5	8	2.5	1.588	6	0.52
MF82X-2RS	Rubber seal	2.5	8	2.5	1.588	6	0.52
F602X	open	2.5	8	2.8	1.588	6	0.61
F602XZZ	Shield	2.5	8	4	1.588	6	0.85
F602X-2RS	Rubber seal	2.5	8	4	1.588	6	0.85
MF63	open	3	6	2	0.8	8	0.2
MF63ZZ	Shield	3	6	2.5	0.8	8	0.28
MF63-2RS	Rubber seal	3	6	2.5	0.8	8	0.28
F683	open	3	7	2	1	8	0.32
F683ZZ	Shield	3	7	3	1	8	0.45
F683-2RS	Rubber seal	3	7	3	1	8	0.45
MF83	open	3	8	2.5	1.2	7	0.51
MF83ZZ	Shield	3	8	3	1.2	7	0.67
MF83-2RS	Rubber seal	3	8	3	1.2	7	0.67
F693	open	3	8	3	1.2	7	0.6
F693ZZ	Shield	3	8	4	1.2	7	0.8
F693-2RS	Rubber seal	3	8	4	1.2	7	0.8
MF93	open	3	9	2.5	1.588	6	0.75
MF93ZZ	Shield	3	9	4	1.588	6	1.15
MF93-2RS	Rubber seal	3	9	4	1.588	6	1.15
F603	open	3	9	3	1.588	6	0.84
F603ZZ	Shield	3	9	5	1.588	6	1.13
F603-2RS	Rubber seal	3	9	5	1.588	6	1.13
F623	open	3	10	4	1.588	7	1.45
F623ZZ	Shield	3	10	4	1.588	7	1.65
F623-2RS	Rubber seal	3	10	4	1.588	7	1.65
MF74	open	4	7	2	1	8	0.23
MF74ZZ	Shield	4	7	2.5	1	8	0.33
MF74-2RS	Rubber seal	4	7	2.5	1	8	0.33
MF84	open	4	8	2	1.2	7	0.39
MF84ZZ	Shield	4	8	3	1.2	7	0.56
MF84-2RS	Rubber seal	4	8	3	1.2	7	0.56
F684	open	4	9	2.5	1.588	7	0.65
F684ZZ	Shield	4	9	4	1.588	7	1
F684-2RS	Rubber seal	4	9	4	1.588	7	1
MF104	open	4	10	3	1.588	8	0.96
MF104ZZ	Shield	4	10	4	1.588	8	1.33
MF104-2RS	Rubber seal	4	10	4	1.588	8	1.33
F694	open	4	11	4	2	7	1.69
F694ZZ	Shield	4	11	4	2	7	1.75
F694-2RS	Rubber seal	4	11	4	2	7	1.75
F604	open	4	12	4	2	7	2.19
F604ZZ	Shield	4	12	4	2	7	2.34
F604-2RS	Rubber seal	4	12	4	2	7	2.34
F624	open	4	13	5	2.381	7	3.1
F624ZZ	Shield	4	13	5	2.381	7	3.2
F624-2RS	Rubber seal	4	13	5	2.381	7	3.2
F634	open	4	16	5	2.381	7	5.24
F634ZZ	Shield	4	16	5	2.381	7	5.44
F634-2RS	Rubber seal	4	16	5	2.381	7	5.44
MF85	open	5	8	2	1	8	0.25
MF85ZZ	Shield	5	8	2.5	1	8	0.34
MF85-2RS	Rubber seal	5	8	2.5	1	8	0.34
MF95	open	5	9	2.5	1.2	8	0.54
MF95ZZ	Shield	5	9	3	1.2	8	0.58
MF95-2RS	Rubber seal	5	9	3	1.2	8	0.58
MF105	open	5	10	3	1.2	8	0.58
MF105ZZ	Shield	5	10	4	1.2	8	0.62
MF105-2RS	Rubber seal	5	10	4	1.2	8	0.62
MF115	open	5	11	4	1.588	8	0.62
MF115ZZ	Shield	5	11	4	1.588	8	0.62
MF115-2RS	Rubber seal	5	11	4	1.588	8	0.62
F685	open	5	11	3	1.588	8	1.16
F685ZZ	Shield	5	11	5	1.588	8	1.93
F685-2RS	Rubber seal	5	11	5	1.588	8	1.93
F695	open	5	13	4	2	8	2.31
F695ZZ	Shield	5	13	4	2	8	2.39
F695-2RS	Rubber seal	5	13	4	2	8	2.39
F605	open	5	14	5	2.381	7	3.46
F605ZZ	Shield	5	14	5	2.381	7	3.75
F605-2RS	Rubber seal	5	14	5	2.381	7	3.75
F625	open	5	16	5	2.778	7	4.95
F625ZZ	Shield	5	16	5	2.778	7	5.1
F625-2RS	Rubber seal	5	16	5	2.778	7	5.1
F635	open	5	19	6	3.5	6	8.5
F635ZZ	shield	5	19	6	3.5	6	8.89
F635-2RS	Rubber seal	5	19	6	3.5	6	8.89
MF106	open	6	10	2.5	1.2	10	0.55
MF106ZZ	shield	6	10	3	1.2	10	0.7
MF106-2RS	Rubber seal	6	10	3	1.2	10	0.7
MF126	open	6	12	3	1.588	8	1.25
MF126ZZ	shield	6	12	4	1.588	8	1.66
MF126-2RS	Rubber seal	6	12	4	1.588	8	1.66
F686	open	6	13	3.5	2	8	1.87
F686ZZ	shield	6	13	5	2	8	2.68
F686-2RS	Rubber seal	6	13	5	2	8	2.68
F696	open	6	15	5	2.381	7	3.65
F696ZZ	shield	6	15	5	2.381	7	3.85
F696-2RS	Rubber seal	6	15	5	2.381	7	3.85
F606	open	6	17	6	3.5	6	5.94
F606ZZ	shield	6	17	6	3.5	6	6.89
F606-2RS	Rubber seal	6	17	6	3.5	6	6.89
F626	open	6	19	6	3.5	6	8.12
F626ZZ	shield	6	19	6	3.5	6	8.65
F626-2RS	Rubber seal	6	19	6	3.5	6	8.65
F636	open	6	22	7	3.969	7	13.9
F636ZZ	shield	6	22	7	3.969	7	14.5
F636-2RS	Rubber seal	6	22	7	3.969	7	14.5
MF117	open	7	11	2.5	1.2	9	0.59
MF117ZZ	shield	7	11	3	1.2	9	0.71
MF117-2RS	Rubber seal	7	11	3	1.2	9	0.71
MF137	open	7	13	3	1.2	12	1.52
MF137ZZ	shields	7	13	4	1.2	12	2.01
MF137-2RS	Rubber seal	7	13	4	1.2	12	2.01
F687	open	7	14	3.5	2	9	2.03
F687ZZ	shield	7	14	5	2	9	2.95
F687-2RS	Rubber seal	7	14	5	2	9	2.95
F697	open	7	17	5	2	9	5.01
F697ZZ	shield	7	17	5	2	9	5.26
F697-2RS	Rubber seal	7	17	5	2	9	5.26
F607	open	7	19	6	3.5	6	7.8
F607ZZ	shield	7	19	6	3.5	6	8.24
F607-2RS	Rubber seal	7	19	6	3.5	6	8.24
F627	open	7	22	7	3.969	7	12.7
F627ZZ	shield	7	22	7	3.969	7	13.1
F627-2RS	Rubber seal	7	22	7	3.969	7	13.1
F637	open	7	26	9	4.762	7	24.2
F637ZZ	shield	7	26	9	4.762	7	25.8
F637-2RS	Rubber seal	7	26	9	4.762	7	25.8
MF128	open	8	12	2.5	1.2	12	0.7
MF128ZZ	shield	8	12	3.5	1.2	12	0.99
MF128-2RS	Rubber seal	8	12	3.5	1.2	12	0.99
MF148	open	8	14	3.5	1.588	10	1.9
MF148ZZ	shield	8	14	4	1.588	10	2.19
MF148-2RS	Rubber seal	8	14	4	1.588	10	2.19
F688	open	8	16	4	2	10	3.11
F688ZZ	shield	8	16	5	2	10	4.05
F688-2RS	Rubber seal	8	16	5	2	10	4.05
F698	open	8	19	6	3.175	7	7.12
F698ZZ	shield	8	19	6	3.175	7	7.57
F698-2RS	Rubber seal	8	19	6	3.175	7	7.57
F608	open	8	22	7	3.969	7	11.8
F608ZZ	shield	8	22	7	3.969	7	12.9
F608-2RS	Rubber seal	8	22	7	3.969	7	12.9
F628	open	8	24	8	3.969	7	17.1
F628ZZ	shield	8	24	8	3.969	7	18.5
F628-2RS	Rubber seal	8	24	8	3.969	7	18.5
F638	open	8	28	9	4.762	7	28.1
F638ZZ	shield	8	28	9	4.762	7	30.3
F638-2RS	Rubber seal	8	28	9	4.762	7	30.3
F679	open	9	14	3	1.588	12	1.35
F679ZZ	shield	9	14	4.5	1.588	12	1.98
F679-2RS	Rubber seal	9	14	4.5	1.588	12	1.98
F689	open	9	17	4	2	11	3.41
F689ZZ	shield	9	17	5	2	11	4.38
F689-2RS	Rubber seal	9	17	5	2	11	4.38
F699	open	9	20	6	3.175	8	8.38
F699ZZ	shield	9	20	7	3.175	8	8.54
F699-2RS	Rubber seal	9	20	7	3.175	8	8.54
F609	open	9	24	7	3.175	8	14.7
F609ZZ	shield	9	24	7	3.175	8	16
F609-2RS	Rubber seal	9	24	7	3.175	8	16
F629	open	9	26	8	4.762	7	19
F629ZZ	shield	9	26	8	4.762	7	21.8
F629-2RS	Rubber seal	9	26	8	4.762	7	21.8
F639	open	9	30	10	4.762	7	36.2
F639ZZ	shield	9	30	10	4.762	7	37.1
F639-2RS	Rubber seal	9	30	10	4.762	7	37.1

Inch Miniature Ball Bearings

Inch miniature ball bearings is one of the classifications under miniature ball bearings. Inch Miniature ball bearings are also called inch miniature bearings,inch mini ball bearings or inch mini bearings in different places.Usually,inch miniature ball bearings are referred to miniature ball bearing with inch dimension. Established in 2007,Runstar specilizes in designing and manufacturing inch miniature ball bearings(inch miniature bearings,inch mini ball bearings, inch mini bearings) for industries, Runstar has full series of inch miniature ball bearings with a bore size from 1/25″(1.016mm) to 1/2″(12.7mm) for choices. Inch miniature ball bearings designed and manufactured by Runstar are well-know for high precision,low voice and long life ,with a precision tolerance from ABEC 1 to ABEC 9 for choice,and the material of inch miniature ball bearings can be chrome steel（Gcr15） ,stainless steel(440 or 420) or hybrid ceramic at request, Customized inch miniature ball bearings are accepted in Runstar.

PART NUMBER	SEAL TYPE	Bore diameter(d)	Outer diameter(D)	Width(B)	BALL SIZE(mm)	BALL QTY	weight(g)
R09	open	1/25″︱1.016mm	1/8″︱3.175mm	3/64″︱1.191mm	0.635	6	0.05
R0	open	3/64″︱1.191mm	5/32″︱3.969mm	0.0625″︱1.588mm	0.6	7	0.1
R0ZZ	Shields	3/64″︱1.191mm	5/32″︱3.969mm	3/32″︱2.381mm	0.6	7	0.15
R1	open	1/18″︱1.411mm	3/16″︱4.763mm	0.0781″︱1.984mm	1	6	0.15
R1ZZ	Shields	1/18″︱1.411mm	3/16″︱4.763mm	0.1094″︱2.779mm	1	6	0.19
R1-4	open	5/64″︱1.984mm	1/4″︱6.35mm	3/32″︱2.381mm	1	7	0.4
R1-4ZZ	Shields	5/64″︱1.984mm	1/4″︱6.35mm	0.1406″︱3.571mm	1	7	0.53
R1-4 2RS	Rubber seal	5/64″︱1.984mm	1/4″︱6.35mm	0.1406″︱3.571mm	1	7	0.53
R1-5	open	3/32″︱2.381mm	5/16″︱7.938mm	0.1094″︱2.779mm	1.588	6	0.6
R1-5ZZ	Shields	3/32″︱2.381mm	5/16″︱7.938mm	0.1406″︱3.571mm	1.588	6	1.15
R1-5 2RS	Rubber seal	3/32″︱2.381mm	5/16″︱7.938mm	0.1406″︱3.571mm	1.588	6	1.15
R133	open	3/32″︱2.381mm	3/16″︱4.762mm	0.0625″︱1.588mm	0.8	7	0.1
R133ZZ	Shields	3/32″︱2.381mm	3/16″︱4.762mm	3/32″︱2.381mm	0.8	7	0.15
R133-2RS	Rubber seal	3/32″︱2.381mm	3/16″︱4.762mm	3/32″︱2.381mm	0.8	7	0.15
R144	open	1/8″︱3.175mm	1/4″︱6.35mm	3/32″︱2.381mm	1	7	0.27
R144ZZ	Shields	1/8″︱3.175mm	1/4″︱6.35mm	0.1094″︱2.779mm	1	7	0.4
R144-2RS	Rubber seal	1/8″︱3.175mm	1/4″︱6.35mm	0.1094″︱2.779mm	1	7	0.4
R2	open	1/8″︱3.175mm	3/8″︱9.525mm	5/32″︱3.967mm	1.588	7	1.04
R2ZZ	Shields	1/8″︱3.175mm	3/8″︱9.525mm	5/32″︱3.967mm	1.588	7	1.37
R2-2RS	Rubber seal	1/8″︱3.175mm	3/8″︱9.525mm	5/32″︱3.967mm	1.588	7	1.37
R2-5	open	1/8″︱3.175mm	5/16″︱7.938mm	0.1094″︱2.779mm	1.588	6	0.5
R2-5ZZ	Shields	1/8″︱3.175mm	5/16″︱7.938mm	0.1406″︱3.571mm	1.588	6	0.74
R2-5-2RS	Rubber seal	1/8″︱3.175mm	5/16″︱7.938mm	0.1406″︱3.571mm	1.588	6	0.74
R2-6	open	1/8″︱3.175mm	3/8″︱9.525mm	0.1094″︱2.779mm	1.588	7	0.96
R2-6ZZ	Shields	1/8″︱3.175mm	3/8″︱9.525mm	0.1406″︱3.571mm	1.588	7	1.23
R2-6-2RS	Rubber seal	1/8″︱3.175mm	3/8″︱9.525mm	0.1406″︱3.571mm	1.588	7	1.23
R2A	open	1/8″︱3.175mm	1/2″︱12.7mm	0.1719″︱4.366mm	1.588	7	3.3
R2AZZ	Shields	1/8″︱3.175mm	1/2″︱12.7mm	0.1719″︱4.366mm	1.588	7	1.23
R2A-2RS	Rubber seal	1/8″︱3.175mm	1/2″︱12.7mm	0.1719″︱4.366mm	1.588	7	1.23
R155	open	5/32″︱3.969mm	5/16″︱7.938mm	0.1094″︱2.779mm	1	10	0.51
R155ZZ	Shields	5/32″︱3.969mm	5/16″︱7.938mm	1/8″︱3.175mm	1	10	0.61
R155-2RS	Rubber seal	5/32″︱3.969mm	5/16″︱7.938mm	1/8″︱3.175mm	1	10	0.61
R156	open	3/16″︱4.762mm	5/16″︱7.938mm	0.1094″︱2.779mm	1	10	0.4
R156ZZ	Shields	3/16″︱4.762mm	5/16″︱7.938mm	1/8″︱3.175mm	1	10
R156-2RS	Rubber seal	3/16″︱4.762mm	5/16″︱7.938mm	1/8″︱3.175mm	1	10
R166	open	3/16″︱4.762mm	3/8″︱9.525mm	1/8″︱3.175mm	1.588	8	0.81
R166ZZ	Shields	3/16″︱4.762mm	3/8″︱9.525mm	1/8″︱3.175mm	1.588	8	0.85
R166-2RS	Rubber seal	3/16″︱4.762mm	3/8″︱9.525mm	1/8″︱3.175mm	1.588	8	0.85
R3	open	3/16″︱4.762mm	1/2″︱12.7mm	5/32″︱3.967mm	2.381	7	2.21
R3ZZ	Shields	3/16″︱4.762mm	1/2″︱12.7mm	0.1960″︱4.978mm	2.381	7
R3-2RS	Rubber seal	3/16″︱4.762mm	1/2″︱12.7mm	0.1960″︱4.978mm	2.381	7
R3A	open	3/16″︱4.762mm	5/8″︱15.875	0.1960″︱4.978mm	2.381	8	5.08
R3AZZ	Shields	3/16″︱4.762mm	5/8″︱15.875	0.1960″︱4.978mm	2.381	8	5.08
R3A-2RS	Rubber seal	3/16″︱4.762mm	5/8″︱15.875	0.1960″︱4.978mm	2.381	8	5.08
R168	open	1/4″︱6.35mm	3/8″︱9.525mm	1/8″︱3.175mm	1	11	0.57
R168ZZ	Shields	1/4″︱6.35mm	3/8″︱9.525mm	1/8″︱3.175mm	1	11	0.6
R168-2RS	Rubber seal	1/4″︱6.35mm	3/8″︱9.525mm	1/8″︱3.175mm	1	11	0.6
R188	open	1/4″︱6.35mm	1/2″︱12.7mm	1/8″︱3.175mm	2	8	1.6
R188ZZ	Shields	1/4″︱6.35mm	1/2″︱12.7mm	3/16″︱4.762mm	2	8	2.32
R188-2RS	Rubber seal	1/4″︱6.35mm	1/2″︱12.7mm	3/16″︱4.762mm	2	8	2.32
R4	open	1/4″︱6.35mm	5/8″︱15.875	0.1960″︱4.978mm	2.381	8	4.46
R4ZZ	Shields	1/4″︱6.35mm	5/8″︱15.875	0.1960″︱4.978mm	2.381	8	4.54
R4-2RS	Rubber seal	1/4″︱6.35mm	5/8″︱15.875	0.1960″︱4.978mm	2.381	8	4.54
R4A	open	1/4″︱6.35mm	3/4″︱19.05mm	0.2188″︱5.558	3.5	6	7.48
R4AZZ	Shields	1/4″︱6.35mm	3/4″︱19.05mm	0.2188″︱5.558	3.5	6	10
R4A-2RS	Rubber seal	1/4″︱6.35mm	3/4″︱19.05mm	0.2188″︱5.558	3.5	6	10
R1810	open	5/16″︱7.938mm	1/2″︱12.7mm	5/32″︱3.967mm	1.2	12	1.39
R1810ZZ	Shields	5/16″︱7.938mm	1/2″︱12.7mm	5/32″︱3.967mm	1.2	12	1.57
R1810-2RS	Rubber seal	5/16″︱7.938mm	1/2″︱12.7mm	5/32″︱3.967mm	1.2	12	1.57
R6	open	3/8″︱9.525mm	7/8″︱22.225	0.2188″︱5.558	3.97	7	9.02
R6ZZ	Shields	3/8″︱9.525mm	7/8″︱22.225	0.2812″︱7.142mm	3.97	7	11.7
R6-2RS	Rubber seal	3/8″︱9.525mm	7/8″︱22.225	0.2812″︱7.142mm	3.97	7	11.7
R8	open	1/2″︱12.7mm	1 1/8″︱34.925mm	1/4″︱6.35mm	4.762	8	11.6
R8ZZ	Shields	1/2″︱12.7mm	1 1/8″︱34.925mm	5/16″︱7.938mm	4.762	8	24.1
R8-2RS	Rubber seal	1/2″︱12.7mm	1 1/8″︱34.925mm	5/16″︱7.938mm	4.762	8	24.1

Inch Flange Miniature Ball Bearings

Inch Flange miniature ball bearings is one of the classifications under miniature ball bearings. Inch Flange Miniature ball bearings are also called inch flange miniature bearings,inch flange mini ball bearings or inch flange mini bearings in different places.Compared to inch miniature ball bearings,inch flange miniature ball bearings are referred to miniature ball bearing with inch dimension and with flange, the inch flange miniature bearings can be used for the connection and positioning of parts in applications.Established in 2007,Runstar is a professional inch flange miniature ball bearing factory for industries, all our inch flange miniature ball bearings are strictly controlled under ISO9001:2015. Runstar has full series of inch flange miniature ball bearings with a bore size from 1/25″(1.016mm) to 1/2″(12.7mm) for choices. Inch flange miniature ball bearings designed and manufactured by Runstar are well-known for high precision,low voice and long life ,with a precision tolerance from ABEC 1 to ABEC 9 for choice,and the material of inch flange miniature ball bearings can be chrome steel（Gcr15） ,stainless steel(440 or 420) or hybrid ceramic at request, Customized inch flange miniature ball bearings are accepted in Runstar.

PART NUMBER	SEAL TYPE	Bore diameter(d)	Outer diameter(D)	Width(B)	BALL SIZE(mm)	BALL QTY	weight(g)
FR0	open	3/64″︱1.191mm	5/32″︱3.969mm	0.0625″︱1.588mm	0.6	7	0.1
FR0ZZ	Shields	3/64″︱1.191mm	5/32″︱3.969mm	3/32″︱2.381mm	0.6	7	0.15
FR1	open	1/18″︱1.411mm	3/16″︱4.763mm	0.0781″︱1.984mm	1	6	0.15
FR1ZZ	Shields	1/18″︱1.411mm	3/16″︱4.763mm	0.1094″︱2.779mm	1	6	0.19
FR1-4	open	5/64″︱1.984mm	1/4″︱6.35mm	3/32″︱2.381mm	1	7	0.4
FR1-4ZZ	Shields	5/64″︱1.984mm	1/4″︱6.35mm	0.1406″︱3.571mm	1	7	0.53
FR1-4 2RS	Rubber seal	5/64″︱1.984mm	1/4″︱6.35mm	0.1406″︱3.571mm	1	7	0.67
FR1-5	open	3/32″︱2.381mm	5/16″︱7.938mm	0.1094″︱2.779mm	1.588	6	0.67
FR1-5ZZ	Shields	3/32″︱2.381mm	5/16″︱7.938mm	0.1406″︱3.571mm	1.588	6	1.25
FR1-5 2RS	Rubber seal	3/32″︱2.381mm	5/16″︱7.938mm	0.1406″︱3.571mm	1.588	6	1.25
FR133	open	3/32″︱2.381mm	3/16″︱4.762mm	0.0625″︱1.588mm	0.8	7	0.13
FR133ZZ	Shields	3/32″︱2.381mm	3/16″︱4.762mm	3/32″︱2.381mm	0.8	7	0.21
FR133-2RS	Rubber seal	3/32″︱2.381mm	3/16″︱4.762mm	3/32″︱2.381mm	0.8	7	0.21
FR144	open	1/8″︱3.175mm	1/4″︱6.35mm	3/32″︱2.381mm	1	7	0.33
FR144ZZ	Shields	1/8″︱3.175mm	1/4″︱6.35mm	0.1094″︱2.779mm	1	7	0.48
FR144-2RS	Rubber seal	1/8″︱3.175mm	1/4″︱6.35mm	0.1094″︱2.779mm	1	7	0.48
FR2	open	1/8″︱3.175mm	3/8″︱9.525mm	5/32″︱3.967mm	1.588	7	1.2
FR2ZZ	Shields	1/8″︱3.175mm	3/8″︱9.525mm	5/32″︱3.967mm	1.588	7	1.53
FR2-2RS	Rubber seal	1/8″︱3.175mm	3/8″︱9.525mm	5/32″︱3.967mm	1.588	7	1.53
FR2-5	open	1/8″︱3.175mm	5/16″︱7.938mm	0.1094″︱2.779mm	1.588	6	0.57
FR2-5ZZ	Shields	1/8″︱3.175mm	5/16″︱7.938mm	0.1406″︱3.571mm	1.588	6	0.84
FR2-5-2RS	Rubber seal	1/8″︱3.175mm	5/16″︱7.938mm	0.1406″︱3.571mm	1.588	6	0.84
FR2-6	open	1/8″︱3.175mm	3/8″︱9.525mm	0.1094″︱2.779mm	1.588	7	1.05
FR2-6ZZ	Shields	1/8″︱3.175mm	3/8″︱9.525mm	0.1406″︱3.571mm	1.588	7	1.35
FR2-6-2RS	Rubber seal	1/8″︱3.175mm	3/8″︱9.525mm	0.1406″︱3.571mm	1.588	7	1.35
FR155	open	5/32″︱3.969mm	5/16″︱7.938mm	0.1094″︱2.779mm	1	10	0.56
FR155ZZ	Shields	5/32″︱3.969mm	5/16″︱7.938mm	1/8″︱3.175mm	1	10	0.72
FR155-2RS	Rubber seal	5/32″︱3.969mm	5/16″︱7.938mm	1/8″︱3.175mm	1	10	0.72
FR156	open	3/16″︱4.762mm	5/16″︱7.938mm	0.1094″︱2.779mm	1	10	0.47
FR156ZZ	Shields	3/16″︱4.762mm	5/16″︱7.938mm	1/8″︱3.175mm	1	10	0.56
FR156-2RS	Rubber seal	3/16″︱4.762mm	5/16″︱7.938mm	1/8″︱3.175mm	1	10	0.56
FR166	open	3/16″︱4.762mm	3/8″︱9.525mm	1/8″︱3.175mm	1.588	8	0.9
FR166ZZ	Shields	3/16″︱4.762mm	3/8″︱9.525mm	1/8″︱3.175mm	1.588	8	0.97
FR166-2RS	Rubber seal	3/16″︱4.762mm	3/8″︱9.525mm	1/8″︱3.175mm	1.588	8	0.97
FR3	open	3/16″︱4.762mm	1/2″︱12.7mm	5/32″︱3.967mm	2.381	7	2.5
FR3ZZ	Shields	3/16″︱4.762mm	1/2″︱12.7mm	0.1960″︱4.978mm	2.381	7	3.24
FR3-2RS	Rubber seal	3/16″︱4.762mm	1/2″︱12.7mm	0.1960″︱4.978mm	2.381	7	3.24
FR168	open	1/4″︱6.35mm	3/8″︱9.525mm	1/8″︱3.175mm	1	11	0.66
FR168ZZ	Shields	1/4″︱6.35mm	3/8″︱9.525mm	1/8″︱3.175mm	1	11	0.73
FR168-2RS	Rubber seal	1/4″︱6.35mm	3/8″︱9.525mm	1/8″︱3.175mm	1	11	0.73
FR188	open	1/4″︱6.35mm	1/2″︱12.7mm	1/8″︱3.175mm	2	8	1.71
FR188ZZ	Shields	1/4″︱6.35mm	1/2″︱12.7mm	3/16″︱4.762mm	2	8	2.54
FR188-2RS	Rubber seal	1/4″︱6.35mm	1/2″︱12.7mm	3/16″︱4.762mm	2	8	2.54
FR4	open	1/4″︱6.35mm	5/8″︱15.875	0.1960″︱4.978mm	2.381	8	4.82
FR4ZZ	Shields	1/4″︱6.35mm	5/8″︱15.875	0.1960″︱4.978mm	2.381	8	4.9
FR4-2RS	Rubber seal	1/4″︱6.35mm	5/8″︱15.875	0.1960″︱4.978mm	2.381	8	4.9
FR1810	open	5/16″︱7.938mm	1/2″︱12.7mm	5/32″︱3.967mm	1.2	12	1.54
FR1810ZZ	Shields	5/16″︱7.938mm	1/2″︱12.7mm	5/32″︱3.967mm	1.2	12	1.72
FR1810-2RS	Rubber seal	5/16″︱7.938mm	1/2″︱12.7mm	5/32″︱3.967mm	1.2	12	1.72
FR6	open	3/8″︱9.525mm	7/8″︱22.225	0.2188″︱5.558	3.97	7	9.71
FR6ZZ	Shields	3/8″︱9.525mm	7/8″︱22.225	0.2812″︱7.142mm	3.97	7	12.39
FR6-2RS	Rubber seal	3/8″︱9.525mm	7/8″︱22.225	0.2812″︱7.142mm	3.97	7	12.39
FR8	open	1/2″︱12.7mm	1 1/8″︱34.925mm	1/4″︱6.35mm	4.762	8	24
FR8ZZ	Shields	1/2″︱12.7mm	1 1/8″︱34.925mm	5/16″︱7.938mm	4.762	8	25.6
FR8-2R	Rubber seal	1/2″︱12.7mm	1 1/8″︱34.925mm	5/16″︱7.938mm	4.762	8	25.6

Miniature Ball Bearings

Product Category

Quick Link

Contact Info