Full Si3n4 Ceramic Ball Bearing 638

Model NO.: 638
Structure: Deep Groove
Type: Ball
Brand Name: Guanying
Size: 8X28X9mm
Outside Diameter: 0 - 200mm
Precision Rating: P6 P5 P4 P2
Seals Type: Open
Cage: Polytetrafluoroethylene, Nylon, Polyether
Vibration: V1 V2 V3 V4
Noise: Z1 Z2 Z3 Z4
Trademark: GYB
Transport Package: Single Box/Outer Carton
Specification: 638
Origin: China
HS Code: 8482102000
Model NO.: 638
Structure: Deep Groove
Type: Ball
Brand Name: Guanying
Size: 8X28X9mm
Outside Diameter: 0 - 200mm
Precision Rating: P6 P5 P4 P2
Seals Type: Open
Cage: Polytetrafluoroethylene, Nylon, Polyether
Vibration: V1 V2 V3 V4
Noise: Z1 Z2 Z3 Z4
Trademark: GYB
Transport Package: Single Box/Outer Carton
Specification: 638
Origin: China
HS Code: 8482102000
Full Si3n4 ceramic ball bearing 638 
Advantage
1. because the ceramic is almost not afraid of corrosion, so the ceramic rolling bearings suitable for corrosive media in the harsh conditions of operation.
2. because the ceramic rolling ball density is lower than the steel, the weight is much lighter, so the rotation of the outer ring when the centrifugal effect can be reduced by 40%, and thus greatly extend the service life.
3. the impact of thermal expansion and contraction of the ceramic than the steel is small, so the gap in the bearing must be allowed to change the temperature difference in the more drastic environment.
Fourth, because the ceramic elastic modulus than steel, stress is not easy to deformation, it is conducive to improve the working speed, and to achieve high accuracy.
Application
Ceramic bearings with high temperature, cold, wear, corrosion resistance, anti-magnetic insulation, no oil self-lubricating, high speed and other characteristics. It can be widely used in the fields of aviation, aerospace, navigation, petroleum, chemical, automobile, electronic equipment, metallurgy, electric power, textile, pump, medical device, scientific research and national defense and military fields. New materials used in high-tech products.
Ceramic bearing rings and rolling body using all-ceramic materials, zirconium oxide (ZrO2), silicon nitride (Si3N4), silicon carbide (Sic) three. The holder is made of polytetrafluoroethylene, nylon 66, polyether imide, zirconia, silicon nitride, stainless steel or special aviation aluminum, thus expanding the application of ceramic bearings.

Name		 Full Si3n4 ceramic ball bearing 638 

Material
ZrO2,Si3N4,Sic

Cage
Polytetrafluoroethylene, nylon, polyetherimide, zirconium oxide, silicon nitride

Dimention
Standard or as your requirememts

Delivery time
1.For samples: 1-3days 
2.For order: Generally 10-15 days after deposit

Payment terms
1:100% TT
2: 30% T/T in advance .70% before shipment

Application
Medical equipment, low temperature engineering, optical instruments, high-speed machine tools, high-speed motors, printing machinery, food processing machinery.

Package
1. Industrial packaging: Plastic tube (10pcs in one tube)+ carton + plywood pallets; plastic bag + kraft paper + carton + plywood pallets;
2. Commercial packing: 1pc/plastic bag+ single color box+ carton + plywood pallets;
3.or as your request

Feature
High precision, low noise, high speed, long life, high reliability, heavy load and high temperature resistance.

Service
OEM and ODM
Picture of Bearings
Full Si3n4 Ceramic Ball Bearing 638
Models
Bearing Type Dimensions For installing size Weight
          da da Da ra kg
  d D B r The minimum The biggest The biggest The biggest ZrO2 Si3N4
695CE 5 13 4 0.2 6.6 / 11.4 0.2 0.0019 0.0010
686CE 6 13 3.5 0.15 7.2 / 11.8 0.15 0.0015

0.0008
696CE 15 5 0.2 7.6 / 13.4 0.2 0.0030 0.0016
606CE 17 6 0.3 8 / 15 0.3 0.0046 0.0025
687CE 7 14 3.5 0.15 8.2 / 12.8 0.15 0.0017 0.0009
697CE 17 5 0.3 9 / 15 0.3 0.0040 0.0022
607CE 19 6 0.3 9 / 17 0.3 0.0059 0.0032
627CE 22 7 0.3 9 / 20 0.3 0.0098 0.0053
688CE 8 16 4 0.2 9.6 / 14.4 0.2 0.0025 0.0014
698CE 19 6 0.3 10 / 17 0.3 0.0056 0.0030
608CE 22 7 0.3 10 / 20 0.3 0.0093 0.0050
628CE 24 8 0.3 10 / 22 0.3 0.013 0.0072
689CE 9 17 4 0.2 10.6 / 15.4 0.2 0.0027 0.0015
699CE 20 6 0.3 11 / 18 0.3 0.0065 0.0035
609CE 24 7 0.3 11 / 22 0.3 0.011 0.0060
629CE 26 8 0.3 11 / 24 0.3 0.015 0.0081
6000CE 10 26 8 0.3 12 13 24 0.3 0.014 0.0075
6200CE 30 9 0.6 14 16 26 0.6 0.025 0.013
6300CE 35 11 0.6 14 16.5 31 0.6 0.040 0.022
6801CE 12 21 5 0.3 14 14 19 0.3 0.005 0.0025
6901CE 24 6 0.3 14 14.5 22 0.3 0.008 0.0042
6001CE 28 8 0.3 14 15.5 26 0.3 0.017 0.0092
6201CE 32 10 0.6 16 17 28 0.6 0.028 0.015
6301CE 37 12 1 17 18 32 1 0.046 0.025
6802CE 15 24 5 0.3 17 17 22 0.3 0.005 0.0029
6902CE 28 7 0.3 17 17 26 0.3 0.012 0.0063
6002CE 32 9 0.3 17 19 30 0.3 0.024 0.013
6202CE 35 11 0.6 19 20.5 31 0.3 0.035 0.019
6302CE 42 13 1 20 22.5 37 1 0.064 0.035
6803CE 17 26 5 0.3 19 19 24 0.3 0.005 0.0029
6903CE 30 7 0.3 19 19.5 28 0.3 0.013 0.0071
6003CE 35 10 0.3 19 21.5 33 0.3 0.032 0.017
6203CE 40 12 0.6 21 23.5 36 0.6 0.052 0.028
6303CE 62 17 1.1 23.5 / 55.5 1 0.21 0.11
6804CE 20 32 7 0.3 22 22.5 30 0.3 0.013 0.007
6904CE 37 9 0.3 22 24 35 0.3 0.028 0.015
6004CE 42 12 0.6 24 25.5 38 0.6 0.052 0.028
6204CE 47 14 1 25 26.5 42 1 0.082 0.045
6304CE 52 15 1.1 26.5 28 45.5 1 0.11 0.060
6805CE 25 37 7 0.3 27 27 35 0.3 0.016 0.009
6905CE 42 9 0.3 27 28.5 40 0.3 0.032 0.018
6005CE 47 12 0.6 29 30 43 0.6 0.061 0.033
6205CE 52 15 1 30 32 47 1 0.099 0.054
6305CE 62 17 1.1 31.5 36 55.5 1 0.18 0.098
6006CE 30 55 13 1 35 36.5 53 1 0.089 0.048
6206CE 62 16 1 35 38.5 60 1 0.15 0.083
6306CE 72 19 1.1 36.5 42.5 68.5 1 0.27 0.14
Related products
Full Si3n4 Ceramic Ball Bearing 638
Full Si3n4 Ceramic Ball Bearing 638
Full Si3n4 Ceramic Ball Bearing 638
Full Si3n4 Ceramic Ball Bearing 638
Packing and shipping
Full Si3n4 Ceramic Ball Bearing 638

WELCOME TO CONTACT US FREELY ! Full Si3n4 ceramic ball bearing 638 
Advantage
1. because the ceramic is almost not afraid of corrosion, so the ceramic rolling bearings suitable for corrosive media in the harsh conditions of operation.
2. because the ceramic rolling ball density is lower than the steel, the weight is much lighter, so the rotation of the outer ring when the centrifugal effect can be reduced by 40%, and thus greatly extend the service life.
3. the impact of thermal expansion and contraction of the ceramic than the steel is small, so the gap in the bearing must be allowed to change the temperature difference in the more drastic environment.
Fourth, because the ceramic elastic modulus than steel, stress is not easy to deformation, it is conducive to improve the working speed, and to achieve high accuracy.
Application
Ceramic bearings with high temperature, cold, wear, corrosion resistance, anti-magnetic insulation, no oil self-lubricating, high speed and other characteristics. It can be widely used in the fields of aviation, aerospace, navigation, petroleum, chemical, automobile, electronic equipment, metallurgy, electric power, textile, pump, medical device, scientific research and national defense and military fields. New materials used in high-tech products.
Ceramic bearing rings and rolling body using all-ceramic materials, zirconium oxide (ZrO2), silicon nitride (Si3N4), silicon carbide (Sic) three. The holder is made of polytetrafluoroethylene, nylon 66, polyether imide, zirconia, silicon nitride, stainless steel or special aviation aluminum, thus expanding the application of ceramic bearings.

Name		 Full Si3n4 ceramic ball bearing 638 

Material
ZrO2,Si3N4,Sic

Cage
Polytetrafluoroethylene, nylon, polyetherimide, zirconium oxide, silicon nitride

Dimention
Standard or as your requirememts

Delivery time
1.For samples: 1-3days 
2.For order: Generally 10-15 days after deposit

Payment terms
1:100% TT
2: 30% T/T in advance .70% before shipment

Application
Medical equipment, low temperature engineering, optical instruments, high-speed machine tools, high-speed motors, printing machinery, food processing machinery.

Package
1. Industrial packaging: Plastic tube (10pcs in one tube)+ carton + plywood pallets; plastic bag + kraft paper + carton + plywood pallets;
2. Commercial packing: 1pc/plastic bag+ single color box+ carton + plywood pallets;
3.or as your request

Feature
High precision, low noise, high speed, long life, high reliability, heavy load and high temperature resistance.

Service
OEM and ODM
Picture of Bearings
Full Si3n4 Ceramic Ball Bearing 638
Models
Bearing Type Dimensions For installing size Weight
          da da Da ra kg
  d D B r The minimum The biggest The biggest The biggest ZrO2 Si3N4
695CE 5 13 4 0.2 6.6 / 11.4 0.2 0.0019 0.0010
686CE 6 13 3.5 0.15 7.2 / 11.8 0.15 0.0015

0.0008
696CE 15 5 0.2 7.6 / 13.4 0.2 0.0030 0.0016
606CE 17 6 0.3 8 / 15 0.3 0.0046 0.0025
687CE 7 14 3.5 0.15 8.2 / 12.8 0.15 0.0017 0.0009
697CE 17 5 0.3 9 / 15 0.3 0.0040 0.0022
607CE 19 6 0.3 9 / 17 0.3 0.0059 0.0032
627CE 22 7 0.3 9 / 20 0.3 0.0098 0.0053
688CE 8 16 4 0.2 9.6 / 14.4 0.2 0.0025 0.0014
698CE 19 6 0.3 10 / 17 0.3 0.0056 0.0030
608CE 22 7 0.3 10 / 20 0.3 0.0093 0.0050
628CE 24 8 0.3 10 / 22 0.3 0.013 0.0072
689CE 9 17 4 0.2 10.6 / 15.4 0.2 0.0027 0.0015
699CE 20 6 0.3 11 / 18 0.3 0.0065 0.0035
609CE 24 7 0.3 11 / 22 0.3 0.011 0.0060
629CE 26 8 0.3 11 / 24 0.3 0.015 0.0081
6000CE 10 26 8 0.3 12 13 24 0.3 0.014 0.0075
6200CE 30 9 0.6 14 16 26 0.6 0.025 0.013
6300CE 35 11 0.6 14 16.5 31 0.6 0.040 0.022
6801CE 12 21 5 0.3 14 14 19 0.3 0.005 0.0025
6901CE 24 6 0.3 14 14.5 22 0.3 0.008 0.0042
6001CE 28 8 0.3 14 15.5 26 0.3 0.017 0.0092
6201CE 32 10 0.6 16 17 28 0.6 0.028 0.015
6301CE 37 12 1 17 18 32 1 0.046 0.025
6802CE 15 24 5 0.3 17 17 22 0.3 0.005 0.0029
6902CE 28 7 0.3 17 17 26 0.3 0.012 0.0063
6002CE 32 9 0.3 17 19 30 0.3 0.024 0.013
6202CE 35 11 0.6 19 20.5 31 0.3 0.035 0.019
6302CE 42 13 1 20 22.5 37 1 0.064 0.035
6803CE 17 26 5 0.3 19 19 24 0.3 0.005 0.0029
6903CE 30 7 0.3 19 19.5 28 0.3 0.013 0.0071
6003CE 35 10 0.3 19 21.5 33 0.3 0.032 0.017
6203CE 40 12 0.6 21 23.5 36 0.6 0.052 0.028
6303CE 62 17 1.1 23.5 / 55.5 1 0.21 0.11
6804CE 20 32 7 0.3 22 22.5 30 0.3 0.013 0.007
6904CE 37 9 0.3 22 24 35 0.3 0.028 0.015
6004CE 42 12 0.6 24 25.5 38 0.6 0.052 0.028
6204CE 47 14 1 25 26.5 42 1 0.082 0.045
6304CE 52 15 1.1 26.5 28 45.5 1 0.11 0.060
6805CE 25 37 7 0.3 27 27 35 0.3 0.016 0.009
6905CE 42 9 0.3 27 28.5 40 0.3 0.032 0.018
6005CE 47 12 0.6 29 30 43 0.6 0.061 0.033
6205CE 52 15 1 30 32 47 1 0.099 0.054
6305CE 62 17 1.1 31.5 36 55.5 1 0.18 0.098
6006CE 30 55 13 1 35 36.5 53 1 0.089 0.048
6206CE 62 16 1 35 38.5 60 1 0.15 0.083
6306CE 72 19 1.1 36.5 42.5 68.5 1 0.27 0.14
Related products
Full Si3n4 Ceramic Ball Bearing 638
Full Si3n4 Ceramic Ball Bearing 638
Full Si3n4 Ceramic Ball Bearing 638
Full Si3n4 Ceramic Ball Bearing 638
Packing and shipping
Full Si3n4 Ceramic Ball Bearing 638

WELCOME TO CONTACT US FREELY !

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 NP-WQ series of submersible sewage pumps are designed with varies of installation experience and improved in water flow stream line, motor cooling system, Protections, control and sealing to suit for multipurpose applications and installations.


Typical Applications---

Municipals sewage installations
Constructions
Industrial waste water
Waste content solid and fibers

River and drain water

2.  NP-WQ Submersible Sewage Slurry Pump strcuture drawing(mini type):

NO-WQ submersible sewage slurry pumps

Main parts in the drawing:

1. pump casing  2. impeller 3.oil chamber 4.Bearing seal  5.bearing 6.pump motor shaft  7motor.


Medium type submersible sewage slurry pump strcuture drwaing:

medium submersible sewage slurry pump

Main parts in the drawing:

1. wear ring 2. pump casing  3. impeller 4.oil chamber 5.Bearing seal  6.bearing 7.pump motor shaft  8.motor 9.cooling water jacket 10.inspect equipment

Submersible Sewage Slurry Pump

Submersible Pump, Submersible Sewage Pump, Submersible Slurry Pump, Vertical Submersible Slurry Pump

Shijiazhuang Naipu Pump Co., Ltd. , https://www.naipu-pump.com