Angular Contact Ball Bearing (Si3N4)

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Angular contact ball bearing with Si₃N₄ ceramic balls. High axial load capacity, low friction, thermal shock resistant, electrically insulating.

Key points covered (99 characters):

Type: Angular contact ball bearing
Material: Si₃N₄ (Silicon Nitride) ceramic balls (races typically steel)
Key Advantages:

Handles high axial/combined loads (angular contact design)
Low friction & wear (ceramic)
Excellent thermal shock resistance (Si₃N₄ property)
Electrically insulating (ceramic)
Suited for demanding/high-speed applications

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Inquiry	Tojo Number	Dimentions（mm)				2022	Mounting Dimentions(mm)			Reference Weight
		d	D	B	r(min）	r1(min）	da	Da	ra	（kg)
		d	D	B	r(min）	r1(min）	min	max	max	Si3N4
	7900	10	22	6	0.3	0.15	12.5	19.5	0.3	0.0038
	7000	10	26	8	0.3	0.15	12.5	23.5	0.3	0.0075
	7200	10	30	9	0.6	0.3	15	25	0.6	0.013
	7300	10	35	11	0.6	0.3	15	30	0.6	0.022
	7901	12	24	6	0.3	0.15	14.5	21.5	0.3	0.0042
	7001	12	28	8	0.3	0.15	14.5	25.5	0.3	0.0092
	7201	12	32	10	0.6	0.3	17	27	0.6	0.015
	7301	12	37	12	1	0.6	18	31	1	0.025
	7902	15	28	7	0.3	0.15	17.5	25.5	0.3	0.0063
	7002	15	32	9	0.3	0.15	17.5	29.5	0.3	0.013
	7202	15	35	11	0.6	0.3	20	30	0.3	0.019
	7302	15	42	13	1	0.6	21	36	1	0.035
	7903CN	17	30	7	0.3	0.15	19.5	27.5	0.3	0.0071
	7003	17	35	10	0.3	0.15	19.5	32.5	0.3	0.017
	7203	17	40	12	0.6	0.3	22	35	0.6	0.028
	7303	17	47	14	1	0.6	23	41	1	0.047
	7904	20	37	9	0.3	0.15	22.5	34.5	0.3	0.015
	7004	20	42	12	0.6	0.3	25	37	0.6	0.028
	7204	20	47	14	1	0.6	26	41	1	0.045
	7304	20	52	15	1.1	0.6	27	45	1	0.06
	7905	25	42	9	0.3	0.15	27.5	39.5	0.3	0.018
	7005	25	47	12	0.6	0.3	30	42	0.6	0.033
	7205	25	52	15	1	0.6	31	46	1	0.054
	7305	25	62	17	1.1	0.6	32	55	1	0.098
	7906	30	47	9	0.3	0.15	32.5	44.5	1	0.022
	7006	30	55	13	1	0.6	36	49	1	0.048
	7206	30	62	16	1	0.6	36	56	1	0.083
	7306	30	72	19	1.1	0.6	37	65	1	0.14
	7907	35	55	10	0.6	0.3	40	50	0.6	0.031
	7007	35	62	14	1	0.6	41	56	1	0.063
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