FEATURES CAGES SEALING AND LUBRICATION Packaging: plastic bag + kraft paper + carton + plywood pallets; plastic tube + carton + plywood 1. Who are you?How is your manufacturing capability? We CHIK offers a wide range of roller and ball bearings for customer all over the world.  Our main bearing products include: Deep groove ball bearings, tapered roller bearings, cylindrical roller bearings, spherical roller bearings, needle roller bearings, thrust ball bearings, auto bearings,angular contact bearings and many non-standard bearings. Customized bearing and many worldwide famous bearings are also in our product range. The annual output is more than 10 million sets.  2. Where are you and How is your quality of the bearings?Our main plant locates in Linqing,Shandong, China, and one branch in Cixi. Our office in Jinan city, very famous and beautiful city.  CHIK is our brand and OEM is also welcoming. We have different kinds of quality for your review. Good quality,and normal quality.  3.Do you have in stock? 4. How is your price?           1000-10000 pcs   Price B                 10-100pcs   Price B           10000+ pcs       Price C                 100+ pcs    Price C  5. What is your delivery time? 6. What is the payment term? FEATURES CAGES SEALING AND LUBRICATION Packaging: plastic bag + kraft paper + carton + plywood pallets; plastic tube + carton + plywood 1. Who are you?How is your manufacturing capability? We CHIK offers a wide range of roller and ball bearings for customer all over the world.  Our main bearing products include: Deep groove ball bearings, tapered roller bearings, cylindrical roller bearings, spherical roller bearings, needle roller bearings, thrust ball bearings, auto bearings,angular contact bearings and many non-standard bearings. Customized bearing and many worldwide famous bearings are also in our product range. The annual output is more than 10 million sets.  2. Where are you and How is your quality of the bearings?Our main plant locates in Linqing,Shandong, China, and one branch in Cixi. Our office in Jinan city, very famous and beautiful city.  CHIK is our brand and OEM is also welcoming. We have different kinds of quality for your review. Good quality,and normal quality.  3.Do you have in stock? 4. How is your price?           1000-10000 pcs   Price B                 10-100pcs   Price B           10000+ pcs       Price C                 100+ pcs    Price C  5. What is your delivery time? 6. What is the payment term?
Why is the air dry in winter?
Hotel scent diffuser, Hotel easential oil diffuser, Hotel aroma diffuser, Hotel diffuser machine, Hotel lobby diffuser Shenzhen Ewong Technology CO.LTD , https://www.ewong-tech.com
Double row deep groove ball bearings corresponds in design to single row deep groove ball bearings. They are designed for high to very high speeds and are used where the load carrying capacity of single row deep groove ball bearings is not sufficient. Double row deep groove ball bearings are wider than single row deep groove ball bearings of the same bore and outside diameter but have a significantly higher load carrying capacity.
CHIK double row deep groove ball bearings without a cage suffix have a sheet steel cage. For specific purpose polymer cages might be used which has better friction and lubrication capabilities.
Mainly these bearings are produced in sealed version, however, other types are available on request. Sealed version ensures great lubrication on working conditions as additional lubrication might not be sufficient for this bearing design. CRAFT bearings grease is a low noise bearing grease which is thickened by lithium 12-hydroxy stearic, it is made from deeply refined mineral oil with rust and oxidation inhibitors through special technical process. Applied temperature range -20 C - +120 C.
Product
3804 2RS 3804 ZZ Deep Groove Ball Bearing thin walled Bearing 3804Â Â
Precision Rating
ABEC1,ABEC3,ABEC5
Clearance
C0,C2,C3,C4,C5 is available
Sealed CapÂ
Rubber or Metal
PaypalÂ
Acceptable
OEM
Accept
Vibration Level code
V1,V2.V3
Material
Gcr15
Seals Type
ZZ/ZRS.RZ/RS. Open
Number of Row
double row
Bore Size
11-300Â MM
Outside Diameter
-
Width
check with us
Regular export packing
Plastic drum+White box+ carton, industrial packaging or as your requiremen.
MOQ
1 pcs
Delivery Time
1-7 days after receiving your payment Â
Payment Terms
L/C,T/T,Western Union,MoneyGram,Paypal
Port of shippment by sea
Shanghai Ningbo,Qingdao,Guangzhou
Place of Origin
Shandong, China
Samples
Available
II. DEEP GROOVE BALL BEARINGS SINGLE ROW &Â DOUBLE ROWS
Subject
Symbol
Description
Seal type
ZZ
Metal shields on both sides.
2RS
Rubber seals on both sides.
Z
Metal shield on one side.
RS
Rubber seal on one side.
 Radial internal clearance
C2
Less than normal.
CN
Normal clearance. Is not indicated as a standard.
C3
Greater clearance than normal.
C4
Greater than C3.
C5
Greater than C4.
Other technical modifications
NR
Groove with inserted snap ring in outer ring.
N
Snap ring groove in the outer ring.
SS
Stainless steel.
Cage type
M
Brass cage ball guided.
MB
Brass cage, inner ring centered.
MA
Brass cage, outer ring centered.
Speed ratings
V
Normal vibration level. Is not indicated as a standard.
V2
Lower vibration level than normal.
V3
Lower vibration level than V2.
V4
Lower vibration level than V3.
Tolerances
P0
Normal tolerance level. Is not indicated as a standard.
P6
Greater tolerance level than P0.
P5
Greater tolerance level than P6.
III. PACKAGING & SHIPPINGÂ
We can provide the bearings with competitive price and hign quality. please contact us if you are interested in our goods. Â
1)Â Â Â Â Â Types of Deep Groove Ball Bearing:Â 6000, 6200, 6300,6800, 16000, series.
2)Â Â Â Â Â Material used: GCr15-China.(AISI)52100-American,(Din)100Cr6-Germany.
3)Â Â Â Â Â Shield/closure: open bearing, Z, ZZ, RS, 2RS.
4)Â Â Â Â Â Vibration and Noise level: Z1, Z2, Z3. ZV2, ZV3, Z2V2, Z3V3
5)Â Â Â Â Â Precition level: ABEC1, ABEC3, ABEC5.
3800
3800 2RS
3800ZZ
3801
3801 2RS
3801ZZ
3802
3802 2RS
3802ZZ
3803
3803 2RS
3803ZZ
3804
3804 2RS
3804ZZ
3805
3805 2RS
3805ZZ
3806
3806 2RS
3806ZZ
3807
3807 2RS
3807ZZ
3808
3808 2RS
3808ZZ
3809
3809 2RS
3809ZZ
3810
3810 2RS
3810ZZ
3811
3811 2RS
3811ZZ
3812
3812 2RS
3812ZZ
3813
3813 2RS
3813ZZ
3814
3814 2RS
3814ZZ
3815
3815 2RS
3815ZZ
3816
3816 2RS
3816ZZ
3817
3817 2RS
3817ZZ
3818
3818 2RS
3818ZZ
3819
3819 2RS
3819ZZ
3820
3820 2RS
3820ZZ
V.FAQ
 *Material:Gcr15 Chrome steel/stainless steel/Carbon steel  *Precision Rating:good quality, P0 grade, Z1V1
 We could offer from stock throughout the year for most of the general bearing types,sush as Deep groove ball bearing,Tapered Roller Bearing,Needle Roller Bearing,Thrust Ball Bearing,etc.
Based on rich experience and best cost control process,we offer the most competitive prices to our customers. Besides, your buying quatity makes some difference on unit prices.
Small size:  100-1000pcs      Price A          Big size:  1-10pcs    Price A
Our Delivery time: Based on expanded manufacturing capability and large inventory, we could delivery very fast upon request. 1-2 days for regular models , from stock 8-10 days for production when Qty more than 5000pcs
15-30 days for production for your big order and nonstandard bearing orders
Special urgent delivery time could be arranged for you if it's urgent.
Delivery way:    By sea,by railway, by air/by courier or as your request.
Total amount lower than USD2000,100% in advance T/T, paypal or westunion
Total amount more than USD2000-5000,50% in advance T/T, 50% balance against copy of B/L
Total amount USD5000+, 30% in advance T/T,70% balance against copy of B/L.
 VI. CONTACT INFO.
Chris  ( Export Dep. )
Add:Â Â No.9 Longao, North Longao Road, Jinan city,Shandong,china 250000
Website:Â Â Â www.chikbearing.comÂ
Tel:Â Â Â Â Â Â Â Â 0086-531-82964086Â Â Â Â Â Â Â Â Â Â Â Â
Fax:Â Â Â Â Â Â Â 0086-531-82964081
Mobile :Â 0086-15806686790
Â
I. PRODUCT INFO.
Double row deep groove ball bearings corresponds in design to single row deep groove ball bearings. They are designed for high to very high speeds and are used where the load carrying capacity of single row deep groove ball bearings is not sufficient. Double row deep groove ball bearings are wider than single row deep groove ball bearings of the same bore and outside diameter but have a significantly higher load carrying capacity.
CHIK double row deep groove ball bearings without a cage suffix have a sheet steel cage. For specific purpose polymer cages might be used which has better friction and lubrication capabilities.
Mainly these bearings are produced in sealed version, however, other types are available on request. Sealed version ensures great lubrication on working conditions as additional lubrication might not be sufficient for this bearing design. CRAFT bearings grease is a low noise bearing grease which is thickened by lithium 12-hydroxy stearic, it is made from deeply refined mineral oil with rust and oxidation inhibitors through special technical process. Applied temperature range -20 C - +120 C.
Product
3804 2RS 3804 ZZ Deep Groove Ball Bearing thin walled Bearing 3804Â Â
Precision Rating
ABEC1,ABEC3,ABEC5
Clearance
C0,C2,C3,C4,C5 is available
Sealed CapÂ
Rubber or Metal
PaypalÂ
Acceptable
OEM
Accept
Vibration Level code
V1,V2.V3
Material
Gcr15
Seals Type
ZZ/ZRS.RZ/RS. Open
Number of Row
double row
Bore Size
11-300Â MM
Outside Diameter
-
Width
check with us
Regular export packing
Plastic drum+White box+ carton, industrial packaging or as your requiremen.
MOQ
1 pcs
Delivery Time
1-7 days after receiving your payment Â
Payment Terms
L/C,T/T,Western Union,MoneyGram,Paypal
Port of shippment by sea
Shanghai Ningbo,Qingdao,Guangzhou
Place of Origin
Shandong, China
Samples
Available
II. DEEP GROOVE BALL BEARINGS SINGLE ROW &Â DOUBLE ROWS
Subject
Symbol
Description
Seal type
ZZ
Metal shields on both sides.
2RS
Rubber seals on both sides.
Z
Metal shield on one side.
RS
Rubber seal on one side.
 Radial internal clearance
C2
Less than normal.
CN
Normal clearance. Is not indicated as a standard.
C3
Greater clearance than normal.
C4
Greater than C3.
C5
Greater than C4.
Other technical modifications
NR
Groove with inserted snap ring in outer ring.
N
Snap ring groove in the outer ring.
SS
Stainless steel.
Cage type
M
Brass cage ball guided.
MB
Brass cage, inner ring centered.
MA
Brass cage, outer ring centered.
Speed ratings
V
Normal vibration level. Is not indicated as a standard.
V2
Lower vibration level than normal.
V3
Lower vibration level than V2.
V4
Lower vibration level than V3.
Tolerances
P0
Normal tolerance level. Is not indicated as a standard.
P6
Greater tolerance level than P0.
P5
Greater tolerance level than P6.
III. PACKAGING & SHIPPINGÂ
We can provide the bearings with competitive price and hign quality. please contact us if you are interested in our goods. Â
1)Â Â Â Â Â Types of Deep Groove Ball Bearing:Â 6000, 6200, 6300,6800, 16000, series.
2)Â Â Â Â Â Material used: GCr15-China.(AISI)52100-American,(Din)100Cr6-Germany.
3)Â Â Â Â Â Shield/closure: open bearing, Z, ZZ, RS, 2RS.
4)Â Â Â Â Â Vibration and Noise level: Z1, Z2, Z3. ZV2, ZV3, Z2V2, Z3V3
5)Â Â Â Â Â Precition level: ABEC1, ABEC3, ABEC5.
3800
3800 2RS
3800ZZ
3801
3801 2RS
3801ZZ
3802
3802 2RS
3802ZZ
3803
3803 2RS
3803ZZ
3804
3804 2RS
3804ZZ
3805
3805 2RS
3805ZZ
3806
3806 2RS
3806ZZ
3807
3807 2RS
3807ZZ
3808
3808 2RS
3808ZZ
3809
3809 2RS
3809ZZ
3810
3810 2RS
3810ZZ
3811
3811 2RS
3811ZZ
3812
3812 2RS
3812ZZ
3813
3813 2RS
3813ZZ
3814
3814 2RS
3814ZZ
3815
3815 2RS
3815ZZ
3816
3816 2RS
3816ZZ
3817
3817 2RS
3817ZZ
3818
3818 2RS
3818ZZ
3819
3819 2RS
3819ZZ
3820
3820 2RS
3820ZZ
V.FAQ
 *Material:Gcr15 Chrome steel/stainless steel/Carbon steel  *Precision Rating:good quality, P0 grade, Z1V1
 We could offer from stock throughout the year for most of the general bearing types,sush as Deep groove ball bearing,Tapered Roller Bearing,Needle Roller Bearing,Thrust Ball Bearing,etc.
Based on rich experience and best cost control process,we offer the most competitive prices to our customers. Besides, your buying quatity makes some difference on unit prices.
Small size:  100-1000pcs      Price A          Big size:  1-10pcs    Price A
Our Delivery time: Based on expanded manufacturing capability and large inventory, we could delivery very fast upon request. 1-2 days for regular models , from stock 8-10 days for production when Qty more than 5000pcs
15-30 days for production for your big order and nonstandard bearing orders
Special urgent delivery time could be arranged for you if it's urgent.
Delivery way:    By sea,by railway, by air/by courier or as your request.
Total amount lower than USD2000,100% in advance T/T, paypal or westunion
Total amount more than USD2000-5000,50% in advance T/T, 50% balance against copy of B/L
Total amount USD5000+, 30% in advance T/T,70% balance against copy of B/L.
 VI. CONTACT INFO.
Chris  ( Export Dep. )
Add:Â Â No.9 Longao, North Longao Road, Jinan city,Shandong,china 250000
Website:Â Â Â www.chikbearing.comÂ
Tel:Â Â Â Â Â Â Â Â 0086-531-82964086Â Â Â Â Â Â Â Â Â Â Â Â
Fax:Â Â Â Â Â Â Â 0086-531-82964081
Mobile :Â 0086-15806686790
Â
What we call humidity is divided into two kinds, absolute humidity and relative humidity.
Absolute humidity refers to the amount of water molecules per cubic meter of air.
Relative humidity refers to the ratio between "absolute humidity" and "saturation humidity".
"Saturation humidity" refers to the absolute humidity required for the water vapor in the atmosphere to reach saturation at a certain temperature. Saturation humidity is also closely related to temperature. The higher the temperature, the greater its value.
The drying or wetting we usually feel does not have a great relationship with absolute humidity, but mainly depends on relative humidity. Therefore, this issue should be discussed as follows:
On the one hand, when the temperature is low in winter and the saturated vapor pressure is small, the absolute humidity of the air is small.
On the other hand, when the temperature is low in winter, the value of saturated humidity is also small. When the absolute humidity is the same, the relative humidity is greater.
Generally speaking, there are positive and negative effects of temperature on humidity. Which role plays a major role should be discussed according to the actual situation.
In some areas it gets dry in winter, while in others it may get wet. The temperature is low in winter. Even if the relative humidity is 100%, the water vapor content is still very low. After we inhale air, the air is heated to body temperature, and the relative humidity will become very low, so we will feel dry. The air we exhale is basically saturated steam at body temperature, so we consume a lot of water when we breathe.
The air near the skin will also be heated, so the moisture of the skin is also easy to evaporate
The doctor suggested that an Aroma Diffuser should be placed indoors, which can effectively and immediately solve the problem of indoor air drying, humidify the air and solve the problem of air drying. The ultrasonic aroma diffuser should be used, and the fog should be sprayed out through vibration
Model NO.: 3804 2RS 3804 ZZ
Structure: Deep Groove Ball Bearing
Sample: Free
Seals Type: RS Zz
Payment: LC Tt Paypal Wu
Production Capacity: 100, 000 /Month
Trademark: CHIK SKF NTN NACHI NSK KOYO OEM
Transport Package: Industrial Package; Single Box Package
Specification: 11-300 MM
Origin: China
HS Code: 8482102000
Model NO.: 3804 2RS 3804 ZZ
Structure: Deep Groove Ball Bearing
Sample: Free
Seals Type: RS Zz
Payment: LC Tt Paypal Wu
Production Capacity: 100, 000 /Month
Trademark: CHIK SKF NTN NACHI NSK KOYO OEM
Transport Package: Industrial Package; Single Box Package
Specification: 11-300 MM
Origin: China
HS Code: 8482102000
I. PRODUCT INFO.