Product Details

ITEM	R188KK,R188V,R188U
bore diameter(d)	1/4" 6.35MM
outside diameter(D)	1/2" 12.7MM
Width(B)	3/16" 4.762MM
TYPE	ZZ OR RS
MATERIAL	Gcr15 or 9Cr18
GREASE	NO GREASE
MEMO	WIDELY USED IN YOYO

we make and design high speed ball bearing for YOYO,the most pop shage is U Groove as followings.

we also make other shapes for YOYO as followings.

V GROOVE

T GROOVE

ITEM	shape dimension
ITEM	Bore Diameter	Outer Diameter (D)	Flange outer Diameter	width for open bearing	flanged Width for open bearing	width for shield bearing	flanged Width for open bearing
	d	D	Df/Df1	B	Bf	B1	Bf1
682zz	2	5	6.1	1.5	0.2	2.3	0.6
MR52zz		5	6.2	2	0.6	2.5	0.6
692zz		6	7.5	2.3	0.6	3	0.8
MR62zz		6	7.2	2.5	0.6
MR72zz		7	8.2	2.5	0.6	3	0.6
602zz		7	8.5	2.8	0.7	3.5	0.9
682Xzz	2.5	6	7.1	1.8	0.5	2.6	0.8
692Xzz		7	8.5	2.5	0.7	3.5	0.9
		8	9.2	2.5	0.6		2.5
602Xzz		8	9.5	2.8	0.7	4	0.9
MR63zz	3	6	7.2	2	0.6	2.5	0.6
683zz		7	8.1	2	0.5	3	0.8
MR83zz		8	9.2	2.5	0.6
693zz		8	9.5	3	0.7	4	0.9
MR93zz		9	10.2	2.5	0.6	4	0.8
603zz		9	10.5	3	0.7	5	1
623zz		10	11.5	4	1	4	1
MR74zz	4	7	8.2	2	0.6	2.5	0.6
MR84zz		8	9.2	2	0.6	3	0.6
684zz		9	10.3	2.5	0.6	4	1
MR104zz		10	11.2	3	0.6	4	0.8
694zz		11	12.5	4	1	4	1
604zz		12	13.5	4	1	4	1
624zz		13	15	5	1	5	1
634zz		16	18	5	1	5	1
MR85zz	5	8	9.2	2	0.6	2.5	0.6
MR95zz		9	10.2	2.5	0.6	3	0.6
MR105zz		10	11.2	3	0.6	4	0.8
MR115zz		11	12.6				-
685zz		11	12.5	3	0.8	5	1
695zz		13	15	4	1	4	1
605zz		14	16	5	1	5	1
625zz		16	18	5	1	5	1
635zz		19	22	6	1.5	6	1.5
MR106zz	6	10	11.2	2.5	0.6	3	0.6
MR126zz		12	13.2	3	0.6	4	0.8
686zz		13	15	3.5	1	5	1.1
696zz		15	17	5	1.2	5	1.2
606zz		17	19	6	1.2	6	1.2
626zz		19	22	6	1.5	6	1.5
MR117zz	7	11	12.2	2.5	0.6	3	0.6
MR137zz		13	14.2	3	0.6	4	0.8
687zz		14	16	3.5	1	5	1.1
697zz		17	19	5	1.2	5	1.2
607zz		19	22	6	1.5	6	1.5
627zz		22	25	7	1.5	7	1.5
MR128zz	8	12	13.2	2.5	0.6	3.5	0.8
MR148zz		14	15.6	3.5	0.8	4	0.8
688zz		16	18	4	1	5	1.1
698zz		19	22	6	1.5	6	1.5
608z		22	25	7	1.5	7	1.5
679zz		14					3
689zz	9	17	19	4	1	5	1.1
699zz		20	23	6	1.5	6	1.5
609zz		24	27	7	1.5	7	1.5
6700zz		15	16.5	3	0.8	4	0.3
6800zz		19	21		1	5
63800zz		19	21		1.5	7
6900zz		22	25		1.5	6

Established in 2007, Zhangzhou Runstar Bearings Manufacturing Co.,Ltd is a professional manufacturer of thrust ball bearing and miniature ball bearing in Zhangzhou,China. With a inner diameter from 2mm to 15mm for metric series and from 0.0781" to 0.375" for inch series , the material can be selected with chrome steel(Gcr15) or stainless steel(9Cr18) at your request, our characteristic products are thrust ball bearing with or without groove, miniature ball bearing,flange bearing and stainless steel bearing,as well as non-standard bearings, we have more than 12 year’s experience in supplying thrust ball bearing and miniature ball bearing for industries.