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Small Ball Bearings Rubber Sealed

Small Ball Bearings Rubber Sealed

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Caution

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  • The requirements of vibration class Z1 of the industry are met at ultra-low price

Product Description

Small Ball Bearings Rubber Sealed
Small ball bearings with rubber seals are commonly used in applications where there is a need to protect the bearings from water, dirt, dust, and other contaminants. These bearings are available in various sizes to choose from.
[Feature]
● Bearing Size Standards: Metric System
● Inner Diameter (mm.) : 3, 4, 5, 6, 7, 8 and 9
● Outer Diameter Minimum / Maximum (mm.) : 8 and 28
● Width (mm.) : 4, 5, 6, 7, 8 and 9
● Precision (JIS) : Class 0
● Bearing Type : Closed (Rubber Sealed (DDU))
● Load Direction : Radial Load
[Application]
It is used to support and guide rotating machine's components, such as shafts, wheels, pulleys ,etc



Product of Ball Bearings Overview

・ Light load, medium · low speed, special for medium precision rotation, realizing ultra-low price.
・ It is made of industry standard Ball Bearings steel with high surface hardness and wear resistance.
・ The vibration class of the product is above Z1

Product of Ball Bearings Feature

・ The interface radius of the channel located on the inner and outer ring is slightly larger than the radius of the sphere, in arc shape. Mainly can bear radial load.
・ In addition to the open type Ball Bearings, there are bearings with steel dust cover, bearings with contact rubber seal packing and bearings with non-contact rubber seal packing, or Ball Bearings with stop ring on the outer diameter of outer ring.
・ Ball bearings with dust cover or seal packing are sealed with proper amount of high-quality grease. Deep groove ball bearings generally adopt steel plate stamped cage, which has low friction torque and accuracy grade of 0.

Dimensional Ball Bearings Drawing

Product Dimensional Drawing
(Economic) Small diameter ball bearing Contact rubber seal packing type

Example of Ball Bearings Use

Ball Bearings Motor
1 Motor
Ball Bearings Gear unit
2 Gear unit
Ball Bearings Machine tool
3 Machine tool

Precautions Ball Bearings

When the precision of the shaft and Ball Bearings housing is poor, the bearing will be affected, and its due performance will not be exerted. For example, the poor precision of the mounting part with the bearing will cause relative inclination of the inner and outer rings. At this time, besides the bearing load, the edge load will be increased additionally, which will shorten the fatigue life of the bearing, and even more seriously, it will lead to damage such as cage breakage and sticking.

Please use the following special mounting tool for installation and removal
Ball Bearings heater
Bearing heater
Proper installation of the Ball Bearings heater can guarantee a long life of the bearing.
Rolling bearings are reliable mechanical components with long service life if they are installed and maintained correctly.
After the induction heater is used for heating, the bearing expands outward in the cylindrical direction, which can avoid the damage during installation. Induction heater is one of the most scientific heating methods, which does not need preheating, and can be heated to 110℃ in a few seconds or minutes depending on the weight of bearings, without damaging the prior lubrication
Ball Bearings puller
Bearing puller
When the installation state of the bearing is in the following situations, the special puller can be used for disassembly.
(a) Shaft shape: cylindrical shaft, Inner diameter shape of bearing inner ring: cylindrical hole.
(b) Shaft shape: cylindrical shaft, inner diameter shape of bearing inner ring with tight bushing: tapered hole.
(c) Shaft shape: tapered shaft, Inner diameter shape of bearing inner ring: tapered hole. In either state, the lock nut of the shaft (or the lock nut of the tight bushing) must be released during disassembly, and the lock nut must be placed in a loose state.


Specification Ball Bearings Table

Ball Bearings Key points of economy series parts confirmation ①
Inner Diameter d (mm) Clearance of MISUMI quality products Ball Bearings (μm) Clearance of economy series products Ball Bearings (μm)
or More or Less Minimum Max. Minimum Max.
Less than 10 5 10 7 15
 
Part Number d D B r
(min.)
Ball Bearings Key points of Ball Bearings economy series parts confirmation ②
Basic Rated Load
Allowable Rotational Speed
rpm
(Reference)
Mounting Dimensions Weight
(g)
(Reference)
Ds
(min.)
dh
(max.)
R
(max.)
Cr (Dynamic) N Cor (Static) N
C-E693DDU 3 8 4 0.15 558 180 60000 4.2 6.8 0.15 1
C-E623DDU 10 631 219 50000 8.8 2
C-E684DDU 4 9 0.2 641 227 53000 4.6 8.4
C-E694DDU 11 957 350 48000 5.2 9.8
C-E604DDU 12 5.6 10.4 0.2 3
C-E624DDU 13 5 1301 488 40000 11.4 4
C-E634DDU 16 1340 523 36000 8 13 6
C-E685DDU 5 11 716 282 45000 5.8 10.2 0.1 2
C-E695DDU 13 4 1077 432 43000 6.6 11.4 0.2 3
C-E605DDU 14 5 1329 507 40000 12.4 5
C-E625DDU 16 0.3 1729 675 36000 7 14 0.3 6
C-E635DDU 19 6 0.2 2336 896 32000 7.4 16.6 8
C-E686DDU 6 13 5 1082 442 40000 6.8 11.2 0.2 4
C-E696DDU 15 1340 523 7.6 13.4 0.3 7
C-E606DDU 17 6 2263 846 38000 8 15
C-E626DDU 19 0.3 2336 896 32000 17 8
C-E636DDU 22 7 3333 1423 30000 10.5 20 5
C-E687DDU 7 14 5 0.2 1173 513 40000 7.8 13.2 0.2 4
C-E697DDU 17 1605 719 36000 9 15 0.3 6
C-E607DDU 19 6 2336 896 17 8
C-E627DDU 22 7 0.3 3287 1379 30000 9.4 19.6 14
C-E688DDU 8 16 5 0.2 1252 592 36000 14.6 0.2 4
C-E698DDU 19 6 2237 917 10 17 0.3 8
C-E608DDU 22 7 0.3 3293 1379 34000 20 14
C-E628DDU 24 8 3333 1423 28000 22 18
C-E638DDU 28 9 4563 1983 12 23 31
C-E689DDU 9 17 5 1327 668 36000 10.4 15.6 0.2 5
C-E699DDU 20 6 1720 840 34000 11 18 0.3 8
C-E609DDU 24 7 3356 1444 32000 22 16
C-E629DDU 26 8 4575 1983 28000 11.4 23.6 22
Ball Bearingskgf=N×0.101972

Specification Table
Key points of economy series parts confirmation ①
Inner Diameter d (mm)Clearance of MISUMI quality products (μm)Clearance of economy series products (μm)
or Moreor LessMinimumMax.MinimumMax.
Less than 10510715
 
Part NumberdDBr
(min.)
Key points of economy series parts confirmation ②
Basic Rated Load
Allowable Rotational Speed
rpm
(Reference)
Mounting DimensionsWeight
(g)
(Reference)
Ds
(min.)
dh
(max.)
R
(max.)
Cr (Dynamic) NCor (Static) N
C-E693DDU3840.15558180600004.26.80.151
C-E623DDU10631219500008.82
C-E684DDU490.2641227530004.68.4
C-E694DDU11957350480005.29.8
C-E604DDU125.610.40.23
C-E624DDU13513014884000011.44
C-E634DDU161340523360008136
C-E685DDU511716282450005.810.20.12
C-E695DDU1341077432430006.611.40.23
C-E605DDU14513295074000012.45
C-E625DDU160.31729675360007140.36
C-E635DDU1960.22336896320007.416.68
C-E686DDU61351082442400006.811.20.24
C-E696DDU1513405237.613.40.37
C-E606DDU176226384638000815
C-E626DDU190.3233689632000178
C-E636DDU227333314233000010.5205
C-E687DDU71450.21173513400007.813.20.24
C-E697DDU171605719360009150.36
C-E607DDU1962336896178
C-E627DDU2270.332871379300009.419.614
C-E688DDU81650.212525923600014.60.24
C-E698DDU196223791710170.38
C-E608DDU2270.332931379340002014
C-E628DDU24833331423280002218
C-E638DDU28945631983122331
C-E689DDU917513276683600010.415.60.25
C-E699DDU20617208403400011180.38
C-E609DDU24733561444320002216
C-E629DDU268457519832800011.423.622
kgf=N×0.101972

Part Number 

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    Incomplete part number.
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Part Number
C-E604DDU
C-E605DDU
C-E606DDU
C-E607DDU
C-E608DDU
C-E609DDU
C-E623DDU
C-E624DDU
C-E625DDU
C-E626DDU
C-E627DDU
C-E628DDU
C-E629DDU
C-E634DDU
C-E635DDU
C-E636DDU
C-E638DDU
C-E684DDU
C-E685DDU
C-E686DDU
C-E687DDU
C-E688DDU
C-E689DDU
C-E693DDU
C-E694DDU
C-E695DDU
C-E696DDU
C-E697DDU
C-E698DDU
C-E699DDU
Part NumberPriceMinimum Order Qty.Volume DiscountDays to ShipSố ngày giao hàngInner Dia. d
(Ø)
Outer Dia. D
(Ø)
Width B (or T)
(mm)
Basic Load Rating Cr (Dynamic)
(N)
Basic Load Rating Cor (Static)
(N)
Weight
(g)

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  1. 1

Basic InformationThông tin cơ bản

Raceway Ring Shape Ball Inner/Outer Ring Material SUJ2 Equiv. Bearing Type Rubber Sealed
Outer Ring Type Flat Precision (JIS) Class 0 Allowable Rotational Speed(rpm) 8000
Specifications, Environment Standard / Water Resistance / Dust Resistant Load Direction Radial Number of Raceway Ring Rows Single Row
Size Standards Metric System Rolling Element Material SUJ2

Frequently asked question (FAQ)FAQ

Question:Question: What is the difference between ball bearing and roller bearing?
Answer:Answer: The contact between ball bearing and raceway is point contact, and the contact surface is oval when stressed. Because of the point contact, resisting force value is small, and the ball bearing is suitable for the application conditions of low torque and high rotational speed. They also have the characteristics of low noise. Ball bearings have low loading capacity but can bear radial and axial loads. The contact between roller bearing and raceway is line contact, and the contact surface is square when stressed. Because of the line contact, the torque of roller bearing is higher than that of ball bearing, and its rigidity is higher. Roller bearings have higher loading capacity, and cylindrical roller bearings have retaining edges to bear slight axial loads.
Question:Question: What is the classification of bearings according to the shape of rolling elements?
Answer:Answer: Rolling bearings are mainly divided into: ball bearings and roller bearings. Among them, ball bearings are divided into: deep groove ball bearings, angular contact bearings and radial thrust ball bearings. Roller bearings are divided into: cylindrical roller bearings, needle bearings, cone roller bearings and self-aligning roller bearings.
Question:Question: What is the classification of bearings according to load direction?
Answer:Answer: Bearing are divided into: radial bearings and thrust bearings according to the load direction. Among them, radial bearings are divided into: radial thrust ball bearings and radial roller bearings. Thrust bearings are divided into: thrust ball bearings and thrust roller bearings.
Question:Question: What standard does the vibration class of this bearing meet?
Answer:Answer: The vibration class of the bearing is above Z1

Check other FAQ (1 items) HideĐóng.