Specifications

Full Ceramic Ball Bearing 6921CE from Direct China Manufacturer
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Full Ceramic Deep Groove Ball Bearings 6921 6921CE from Direct China Manufacturer

1.Specification

 

Basic Bearing No.	Bore d mm	Outer Diameter D mm	Width W mm	Radius r min mm	Basic Load Rating KN		Ball Complement		Max Runout Speed		Weight kg
					Dynamic C	Static C0	No.	Size mm	Grease r/min	Oil r/min
6921CE	105	145	20	1.1	365.23	332.56	11	7.35	32000	38000	0.36

2.Description

Bearing NO.: 6921 6921CE

Brands: CLUNT/OEM

Model Type: Ceramic Deep Groove Ball Bearing

Size: 105*130*13mm

Materials : Silicon Nitride (Si3N4), Zirconia (ZrO2), Si3

Cage Materials: PTFE, RPA66-25, PEEK, PI, AISISUS316, Cu

Features: Full Ceramic Si3N4 Material Deep Groove Ball Bearings 6921 6921CE

Full ceramic deep groove ball bearing Si3N4 material has perfect propriety such like suitable for low and high temperatures, high load capacity, corrosion resistance, nonmagnetic insulated and self lubrication. Thus it suit for the specific applications which are not available for bearing steel and hybrid construction ceramic ball bearing materials.

Advantages: 

Firstly, the ceramic bearing has the feature of corrosion risistance, the ceramic rolling bearing suitable for operation under harsh conditions covered corrosive media.
Secondly, since the ceramic ball rolling has lower density than steel, so which is much lighter, so when you rotate the outer ring centrifugal effect can be reduced by 40%, thus greatly extended service life.
Thirdly, the expansion and contraction of the ceramic affected smaller than steel, and therefore the gap of the bearing is constant, the bearing allows the temperature changes more severe environment.
Fourthly, as the ceramic has higher modulus of elasticity than steel, when the force is not easy deformation, and therefore help to improve the operating speed and achieve high accuracy.

Applications: Full Ceramic bearings with the features of  high temperature, cold, wear resistance, corrosion resistance, magnetic insulation, oil-free self-lubricating, high-speed and other characteristics. Can be used in extremely harsh environments and special conditions, can be widely used in aviation, aerospace, marine, petroleum, chemical, automotive, electronics, metallurgy, electric power, textile, pumps, medical equipment, research and national defense and military fields, is application of new materials, high-tech products.

3.Deep Groove Full Ceramic Ball Bearings Table Size - 6921 6921CE

	Diamention (mm)				Installation Diamention(mm)				Weight
Model NO.					da	da	Da	ra	(kg)(Reference)
	d	D	B	r(Min)	Min	Max	Max	Max	ZrO2	Si3N4

6820CE	100	125	13	1	105	106	120	1	0.24	0.13
6920CE		140	20	1.1	106.5	111	133.5	1	0.64	0.35
16020CE		150	16	1	105	/	145	1	0.73	0.39
6020CE		150	24	1.5	108	113	142	1.5	0.99	0.54
6821CE	105	130	13	1	110	111	125	1	0.25	0.14
6921CE		145	20	1.1	111.5	116	138.5	1	0.66	0.36
6822CE	110	140	16	1	115	117	135	1	0.38	0.21
6922CE		150	20	1.1	116.5	121	143.5	1	0.69	0.37
6824CE	120	150	16	1	125	127	145	1	0.41	0.22

4.Most Commonly Used Full Ceramic Deep Groove Ball Bearings

6805CE 6905CE 16005CE 6005CE 6205CE 6305CE 6405CE 6006CE 6806CE 6906CE 16006CE  6206CE  6306CE 6406CE 6007CE 6807CE 6907CE 16007CE 6207CE 6307CE 6407CE 6008CE 16008CE 6208CE 6308CE 6408CE 6009CE 16009CE 6809CE 6909CE 6309CE 6409CE 6010CE 16010CE 6910CE 6210CE 6310CE 6410CE 6011CE 16011CE 6811CE 6911CE 6211CE 6311CE 6411CE 6812CE 6912CE 6212CE 6312CE 6013CE 6813CE 6913 691C3E 16013 16013CE 6213 6213CE 6313 6313CE 6814 6814CE 6914 6914CE 6014CE 16014CE 6214CE 6314 6314CE 6815 6815CE 6915 6915CE 6015CE 16015CE 6215 6816CE 6215CE  6816  6916CE 6016CE 16016CE 6216CE 6817 6817CE 6917 6917CE 6017CE 16017CE 6217 6217CE 6818 6818CE 6918 6918CE 6018CE 16018CE 6819 6819CE 6919 6919CE 6019CE 16019 16019CE 6820 6820CE 6920 6920CE 6020 6020CE 16020 16020CE 6821 6821CE 6921 6921CE

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5.Products Pictures