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6802-2RS Thin Section Bearing P6 High Precision Ceramic Ball Bearing for Motors Robots Automobile
Ceramic ball bearings, featuring silicon nitride (Si3N4) or zirconia (ZrO2) balls, are transforming electric motor bearings with their exceptional properties. Compared to traditional steel balls, ceramic balls offer:
Parameter
Ceramic Balls
Steel Balls
Density
40% lighter
Higher density
Hardness
30% harder
Lower hardness
Friction
50-60% lower
Higher friction
Heat Resistance
Up to 800°C
Limited to 200-300°C
Corrosion
Highly resistant
Prone to corrosion
Speed Capability
20-30% higher
Limited by heat
These advantages make ceramic ball bearings ideal for high-performance electric motor applications, including:
Electric Vehicles (EVs): Enhanced efficiency and extended range.
Industrial Motors: Reduced downtime and maintenance costs.
Precision Machinery: Improved accuracy and reliability.
By reducing friction, heat, and wear, ceramic ball bearings ensure longer lifespan and superior performance in demanding electric motor environments.
Technical Parameters of P6 Cermic Ball Bearings:
Bearing Specification 68 Series
Basic Bearing No.
Bore d
Outer Diameter D
Width W
Radius r
Basic Load Rating KN
Maximum Run out Speed
Weight kg/pc
Dynamic
Static
Grease
Oil
mm
inch
mm
inch
mm
inch
mm
inch
C
CO
r/min
r/min
685
5
0.1969
11
0.4331
3
0.1181
0.1
0.006
0.715
0.282
35000
45000
0.0011
686
6
0.2362
13
0.5118
3.5
0.1378
0.15
0.006
1.08
0.44
33000
42000
0.0019
687
7
0.2756
14
0.5512
3.5
0.1378
0.15
0.006
1.17
0.51
31000
40000
0.0021
688
8
0.3150
16
0.6299
4
0.1575
0.2
0.008
1.26
0.585
29000
38000
0.0031
689
9
0.3543
17
0.6693
4
0.1575
0.2
0.008
1.72
0.82
28000
36000
0.0032
6800
10
0.3937
19
0.7480
5
0.1969
0.3
0.012
1.83
0.925
26000
34000
0.005
6800W7
10
0.3937
19
0.7480
7
0.2756
0.3
0.012
1.83
0.925
26000
34000
0.006
6801
12
0.4724
21
0.8268
5
0.1969
0.3
0.012
1.92
1.04
22000
30000
0.006
6802
15
0.5906
24
0.9449
5
0.1969
0.3
0.012
2.08
1.26
20000
28000
0.007
6803
17
0.6693
26
1.0236
5
0.1969
0.3
0.012
2.81
1.72
19000
26000
0.008
6804
20
0.7874
32
1.2598
7
0.2756
0.3
0.012
4
2.47
17000
22000
0.019
6805
25
0.9843
37
1.4567
7
0.2756
0.3
0.012
4.3
2.95
15000
19000
0.022
6806
30
1.1811
42
1.6535
7
0.2756
0.3
0.012
4.7
3.65
13000
17000
0.026
6807
35
1.3780
47
1.8504
7
0.2756
0.3
0.012
4.9
4.05
11000
15000
0.029
6808
40
1.5748
52
2.0472
7
0.2756
0.3
0.012
5.1
4.4
9000
13000
0.033
6809
45
1.7717
58
2.2835
7
0.2756
0.3
0.012
6.4
5.65
7000
11000
0.04
6810
50
1.9685
65
2.5591
7
0.2756
0.3
0.012
6.6
6.1
5000
9000
0.052
Application Senarios of High Precision Ceremic Ball Bearings
The 68 series deep groove thin-wall ceramic ball bearings are widely used in high-precision applications, particularly in motor bearings for robotics, drones, and medical devices. With common precision grades of ABEC-5 or higher, they ensure superior performance, reduced friction, and enhanced durability in compact, high-speed electric motor systems.
Customization Welcomed:
We can printing your brand (logo,artwork)on the shield or laser engraving your brand on the shield.
We can custom your packaging according to your design.
All copyright owned by clients and we promised don't disclose any information.
Other Technical Data of Bearings
ABEC-5 Tolerance Class ABEC-5 (P5)
Inner Ring
Tolerance in um/s
d mm
Δdmp
Vdp²)Diameter Series
Vdmp
Kia
Sd
Sis3)
ΔBs
Vbs
9
0,1,2,3,4
over
including
high
low
max
3
max
max
max
High
Low
max
1)0.6
2.5
0
-5
5
4
3
4
7
7
0
-40
5
2.5
10
0
-5
5
4
3
4
7
7
0
-40
5
10
18
0
-5
5
4
3
4
7
7
0
-80
5
18
30
0
-6
6
5
3
4
8
8
0
-120
5
30
50
0
-8
8
6
4
5
8
8
0
-120
5
50
80
0
-9
9
7
5
5
8
8
0
-150
6
Outer Ring
Tolerance in um/s
D mm
Δdmp
Vdp²)Diameter Series
Vdmp
Kia
SD4) SD15)
Sea4)5)
ΔBs
Vbs
9
0,1,2,3,4
over
including
high
low
max
max
max
max
High
Low
max
1)2.5
6
0
-5
5
4
3
5
8
8
5
6
18
0
-5
5
4
3
5
8
8
5
18
30
0
-6
6
5
3
6
8
8
5
30
50
0
-7
7
5
4
7
8
8
5
50
80
0
-9
9
7
5
8
8
10
6
80
120
0
-10
10
8
5
10
9
11
8
120
150
0
-11
11
8
6
11
10
13
8
ABEC-7 Tolerance Class ABEC-7 (P4)
Inner Ring
Tolerance in um/s
d mm
Δdmp
Δds
Vdp²)Diameter Series
Vdmp
Kia
Sd
Sia
ΔBs
Vbs
7,8,9
1,7,2,3,4
over
including
high
low
high
low
max
max
max
max
max
High
low
Low
max
1)0.6
2.5
0
-4
0
-4
4
3
2
2.5
3
3
0
-40
-40
2.5
2.5
10
0
-4
0
-4
4
3
2
2.5
3
3
0
-40
-40
2.5
10
18
0
-4
0
-4
4
3
2
2.5
3
3
0
-80
-80
2.5
18
30
0
-5
0
-5
5
4
2.5
3
4
4
0
-120
-120
2.5
30
50
0
-6
0
-5
6
4
3
4
4
4
0
-120
-120
3
50
80
0
-7
0
-5
7
5
3.5
4
5
5
0
-150
-150
4
Outer Ring
Tolerance in um/s
D mm
Δdmp
Δds
Vdp²)Diameter Series
Vdmp
Kia
Sd
Sia
ΔBs
Vbs
7,8,9
1,7,2,3,4
over
including
high
low
high
low
max
max
max
max
max
High
low
max
1)2.5
6
0
-4
0
-4
4
3
2
3
4
5
Identical to ΔBs and VBs of inner ring of same bearing
2.5
6
18
0
-4
0
-4
4
3
2
3
4
5
2.5
18
30
0
-5
0
-5
5
4
2.5
4
4
5
2.5
30
50
0
-6
0
-6
6
5
3
5
4
5
2.5
50
80
0
-7
0
-7
7
5
3.5
5
4
5
3
80
120
0
-8
0
-8
8
6
4
6
5
6
4
120
150
0
-9
0
-9
9
7
5
7
5
7
5
Packing and Shipping:
The deep groove ball bearings will be securely packaged individually, or tube packing or packed as customization packing
Shipping method is negotiable.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2003
Ecer Certification：
Verified Supplier
We are Ningbo Kent Bearing Co., Ltd, one of the leading high-quality bearing manufacturer and supplier, established in 2003.
We registered the BUGAO Bearing trademark in 2003 and specialize in deep groove ball bearings
for electric motors, automobiles, household appliances, power tools, ...
We are Ningbo Kent Bearing Co., Ltd, one of the leading high-quality bearing manufacturer and supplier, established in 2003.
We registered the BUGAO Bearing trademark in 2003 and specialize in deep groove ball bearings
for electric motors, automobiles, household appliances, power tools, ...
