Insert Ball Bearing (Si3N4)

Insert ball bearing with Si₃N₄ ceramic balls. Compensates misalignment, electrically insulating, corrosion resistant; ideal for harsh environments.

Key points:

Type: Insert Ball Bearing (spherical outer ring for misalignment compensation + mounting features)
Material: Si₃N₄ (Silicon Nitride) ceramic balls (hybrid bearing, races typically steel)
Key Advantages:

Misalignment compensation (core feature)
Electrically insulating (ceramic property)
Corrosion & chemical resistance
Reduced friction & wear
Suited for harsh/dirty environments (common insert bearing application)

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Tojo Number	Dimentions（mm)								Ref. Weight
	d	D	B	S	C	r/min	G	ds	（kg)
	d	D	B	S	C	r/min	G	ds	Si3N4
UC201	12	47	31	12.7	17	0.6	4.5	M6 x 1	0.09
UC202	15	47	31	12.7	17	0.6	4.5	M6 x 1	0.08
UC203	17	47	31	12.7	17	0.6	4.5	M6 x 1	0.07
UC204	20	47	31	12.7	17	1	4.5	M6 x 1	0.07
UC205	25	52	34.1	14.3	17V	1	5	M6 x 1	0.09
UC206	30	62	38.1	15.9	19	1	5	M6 x 1	0.14
UC207	35	72	42.9	17.5	20	1.1	6	M8 x 1	0.21
UC208	40	80	49.2	19	21	1.1	8	M8 x 1	0.29
UC209	45	85	49.2	19	22	1.1	8	M8 x 1	0.3
UC210	50	90	51.6	19	24	1.1	9	M10 x 1	0.34
UC211	55	100	55.6	22.2	25	1.5	9	M10 x 1	0.48
UC212	60	110	65.1	25.4	27	1.5	10	M10 x 1	0.64
UC213	65	120	65.1	25.4	27	1.5	10	M10 x 1	0.8
UC214	70	125	74.6	30.2	29	1.5	12	M12 x 1.25	0.89
UC215	75	130	77.8	33.3	30	1.5	12	M12 x 1.25	0.99
UC216	80	140	82.6	33.3	33	2	14	M12 x 1.25	1.16
UC217	85	150	85.7	34.1	36	2	14	M12 x 1.25	1.39
UC218	90	160	96	39.7	37	2	14	M12 x 1.25	1.76
UC220	100	180	108	42	41	2	14	M12 x 1.25	1.85