Specialty ball bearings - Gyroscope bore 1.016-9.525 毫米

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Overall dimensions（mm)					Bearing code		Overall dimensions（mm)			Bearing code
d	D	B	B₁	γ(minimum)	Open	Double Dust Cover Type	d₁	C₁	C₂	With stopper Edge opening type	With stopper blocking edge Double Dust Cover Type
9.525	22.225	5.558	7.142	0.4	R6	FR6ZZ	24.613	1.57	1.57	FR6	FR6ZZ
7.938	12.7	3.967	3.967	0.15	R1810	FR1810ZZ	13.894	0.79	0.79	FR1810	FR1810ZZ
6.35	19.05	5.558	7.142	0.4	R4AA	－	－	－	－	－	－
6.35	15.875	4.978	4.978	0.3	*R4B	FR4BZZ	17.526	1.07	1.07	FR4B	FR4BZZ
6.35	12.7	3.175	4.762	0.15	R188	FR188ZZ	13.894	0.58	1.14	FR188	FR188ZZ
6.35	9.525	3.175	3.175	0.1	R168B	FR168BZZ	10.719	0.58	0.91	FR168B	FR168BZZ
4.762	12.7	3.967	4.978	0.3	*R3	FR3ZZ	14.351	1.07	1.07	FR3	FR3ZZ
4.762	9.525	3.175	3.175	0.1	FR166	FR166ZZ	10.719	0.58	0.79	FR166	FR166ZZ
4.762	7.938	2.779	3.175	0.1	R156	FR156ZZS	9.119	0.58	0.91	FR156	FR156ZZS
3.967	7.938	2.779	3.175	0.1	R155	FR155ZZS	9.119	0.58	0.91	FR155	FR155ZZS
3.175	12.7	4.366	4.366	0.3	R2A	－	－	－	－	－	－
3.175	9.525	3.967	3.967	0.3	*R2	FR2ZZ	11.176	0.76	0.76	FR2	FR2ZZ
3.175	9.525	2.779	3.571	0.15	*R2—6	FR2-6ZZS	10.719	0.58	0.79	FR2-6	FR2-6ZZS
3.175	7.938	2.779	3.571	0.1	R2—5	FR2-5ZZ	9.119	0.58	0.79	FR2-5	FR2-5ZZ
3.175	6.35	2.38	2.779	0.1	*R144	FR144ZZ	7.518	0.58	0.79	FR144	FR144ZZ
2.38	7.938	2.779	3.571	0.15	*R1—5	FR1-5ZZ	9.119	0.58	0.79	FR1-5	FR1-5ZZ
2.38	4.762	－	2.38	0.1	－	FR133ZZS	5.944	－	0.79	－	FR133ZZS
2.38	4.762	1.588	－	0.1	*R133	－	5.944	0.46	－	FR133	－
1.984	6.35	2.38	3.571	0.1	*R1—4	FR1-4ZZ	7.518	0.58	0.79	FR1-4	FR1-4ZZ
1.397	4.762	1.984	2.779	0.1	*R1	FR1ZZ	5.944	0.58	0.79	FR1	FR1ZZ