Miniature Bearing Size Chart

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Miniature Bearing Size Chart

2021/01/31

Miniature bearings are means bearing inner diameter less than 10 mm.

ZZ BEARINGS Can Produce Inch miniature bearing for you ,below here is bearing size for your reference .

And for bearings we can produce at customer requirements ,such as different precision ABEC-1,ABEC-3,ABEC-5,ABEC-7 ,different material stainless steel ,ceramic material.

	Shape Dimension					Ball Complement
Type	Bore Diameter (d)	Outer Diameter (D)	Width for open type(B)	Width for shield type(B1)	Radius rs(min)	size	Qty
	mm	mm	mm	mm	mm	mm	6
R1-4zz	1.984	6.35	2.38	3.571	0.1	1	7
R133zz	2.38	4.762	1.588	2.38	0.1	0.8	7
R1-5zz	2.38	7.938	2.779	3.571	0.15	1.588	6
R144Jzzs	3.175	6.35	2.38	2.779	0.1	1	8
R2-5zz	3.175	7.938	2.779	3.571	0.1	1.588	6
R2-6zz	3.175	9.525	2.779	3.571	0.15	1.588	7
R2zz	3.175	9.525	3.967	3.967	0.3	1.588	7
R2Azz	3.175	12.7	4.366	4.366	0.3	1.588	7
R155zzs	3.967	7.938	2.779	3.175	0.1	1	10
R156zzs	4.762	7.938	2.779	3.175	0.1	1	10
R166zzs	4.762	9.525	3.175	3.175	0.1	1.588	8
R3zz	4.762	12.7	3.967	4.978	0.3	2.381	7
R3Azz	4.762	15.875	4.978	4.978	0.3	2.381	8
R168zzs	6.35	9.525	3.175	3.175	0.1	1	11
R188zz	6.35	12.7	3.175	4.762	0.15	2	8
R4zz	6.35	15.875	4.978	4.978	0.3	2.381	8
R4Azz	6.35	19.05	5.558	7.142	0.4	3.5	6
R1810zzs	7.938	12.7	3.967	3.967	0.15	1.2	12
R6zz	9.525	22.225	5.558	7.142	0.4	3.969	7
R1038zz	9.525	15.875	3.967	3.967	0.15
R1212zz	12.7	19.05	3.967	3.967

Small bearings have widely applications ,such as fror instrument bearings or micro bearings used for gyros, anemometers, flow meters, miniature gearboxes, small motors and radio controlled models.

MKL also can produce miniature bearings are also available with a flange on the outer ring,below here is our miniature flange bearing for your reference .

Type	Bore Diameter (d)	Outer Diameter (D)	Flange	Width		Flange Width(c)
			Outer Diameter	(b)		Flange Width(c)
			(D1)	open	zz	open	zz
FR1-4zzs	1.984	6.35	7.518	2.38	3.571	0.584	0.787
FR133zz	2.38	4.762	5.944	1.588	2.38	0.457	0.787
FR1-5zzs		7.938	9.119	2.779	3.571	0.584	0.787
FR144zzs		6.35	7.518	2.38	2.779	0.584	0.787
FR2-5zz	3.175	7.938	9.119	2.779	3.571	0.584	0.787
FR2-6zzs		9.525	10.719	2.779	3.571	0.584	0.787
FR2zz		9.525	11.176	3.967	3.967	0.762	0.762
FE155zzs	3.967	7.938	9.119	2.779	3.175	0.584	0.914
FR156zzs	4.762	7.938	9.119	2.779	3.175	0.584	0.914
FR166zz		9.525	10.719	3.175	3.175	0.584	0.787
FR3zz		12.7	14.351	4.978	4.978	1.067	1.067
FR168zzs	6.35	9.525	10.719	3.175	3.175	0.584	0.914
FR188zz		12.7	13.894	3.175	4.762	0.584	1.143
FR4zz		15.875	17.526	4.978	4.978	1.067	1.067
FR1810zzs	7.938	12.7	13.894	3.967	3.967	0.787	0.787
FR6zz	9.525	22.225	24.613	5.558	7.142	1.57	1.57

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Introduction to Bearings