Product Description

Product Description

Bearing No. Shape Dimension Basic load Rating
KN
Max Speed
rpm
Mass
Bore
d
Outer Diameter
D
Width
B
Radius r min Dynamic Static Grease Oil
mm mm mm mm Cr Cor  Kg
6200 Series
623 3 10 4 0.15 0.5 0.2156 38000 48000 0.0015
624 4 13 5 0.2 1.15 0.4 36000 46000 0.0032
625 5 16 5 0.3 1.88 0.68 32000 40000 0.0048
626 6 19 6 0.3 2.8 1.05 28000 36000 0.0075
627 7 22 7 0.3 3.28 1.35 26000 34000 0.012
628 8 24 8 0.3 3.35 1.4 24000 32000 0.017
629 9 26 8 0.3 4.45 1.95 22000 30000 0.019
6200 10 30 9 0.6 5.1 2.38 19000 26000 0.571
6201 12 32 10 0.6 6.82 3.05 18000 24000 0.034
6202 15 35 11 0.6 7.65 3.72 17000 22000 0.043
6203 17 40 12 0.6 9.58 4.47 16000 20000 0.062
6204 20 47 14 1 9.88 6.2 14000 18000 0.102
6205 25 52 15 1 10.78 6.98 12000 16000 0.12
6206 30 62 16 1 14.97 10.04 9500 13000 0.19
6207 35 72 17 1.1 19.75 13.67 8500 11000 0.27
6208 40 80 18 1.1 22.71 15.94 8000 10000 0.37
6209 45 85 19 1.1 24.36 17.71 7000 9000 0.38
6210 50 90 20 1.1 26.98 19.84 6700 8500 0.45
6211 55 100 21 1.5 33.37 25.11 6000 7500 0.603
6212 60 110 22 1.5 36.74 27.97 5600 7000 0.789
6213 65 120 23 1.5 44.01 34.18 5000 6300 0.99
6214 70 125 24 1.5 46.79 37.59 4800 6000 1.084
6215 75 130 25 1.5 50.85 41.26 4500 5600 1.171
6216 80 140 26 2 55.04 45.09 4300 5300 1.448
6217 85 150 28 2 64.01 53.28 4000 5000 1.803
6218 90 160 30 2 73.83 60.76 3800 4800 2.17
6300 Series
634 4 16 5 0.3 1.447 0.745 32000 40000 0.0049
635 5 19 6 0.3 2.161 1.163 28000 36000 0.0073
6300 10 35 11 0.6 5.88 3.47 20000 26000 0.054
6301 12 37 12 1 7.48 4.65 17000 22000 0.058
6302 15 42 13 1 8.8 5.43 16000 20000 0.082
6303 17 47 14 1 10.45 6.56 15000 19000 0.11
6304 20 52 15 1.1 12.26 7.81 13000 17000 0.14
6305 25 62 17 1.1 17.22 11.39 10000 14000 0.22
6306 30 72 19 1.1 20.77 14.17 9000 12000 0.33
6307 35 80 21 1.5 25.66 17.92 8000 10000 0.41
6308 40 90 23 1.5 31.35 22.38 7000 9000 0.6
6309 45 100 25 1.5 40.66 30 6300 7500 0.77
6310 50 110 27 2 47.58 35.71 6000 7000 1.03
6311 55 120 29 2 55.05 41.91 5600 6700 1.367
6312 60 130 31 2.1 62.88 48.6 5000 6000 1.71
6313 65 140 33 2.1 72.21 56.68 4500 5300 2.1
6314 70 150 35 2.1 80.1 63.48 4300 5000 2.55
6315 75 160 37 2.1 87.25 71.67 4000 4800 3.05
6316 80 170 39 2.1 94.57 80.35 3800 4500 3.61
6317 85 180 41 3 102.05 89.52 3600 4300 4.284
6318 90 190 43 3 110.81 100.76 3400 4000 4.97
6400 Series
6403 17 62 17 1.1 17.45 11.9 14000 16000 0.27
6404 20 72 19 1.1 23.81 16.78 12000 14000 0.4
6404 25 80 21 1.5 29.42 21.33 10000 12000 0.53
6406 30 90 23 1.5 36.41 26.78 8800 10000 0.735
6407 35 100 25 1.5 43.76 32.55 7800 9100 0.952
6408 40 110 27 2 50.39 37.97 7000 8200 1.23
6409 45 120 29 2 59.52 45.55 6300 7400 1.53
6410 50 130 31 2.1 70.99 55.55 5700 6700 1.88
88500 Series
88505 25 52 16.8 1.5 10.78 6.98 12000 16000 0.175
88506 30 62 24 1.5 14.97 10.04 9500 13000 0.26
88507 35 72 25 2 19.75 13.67 8500 11000 0.35
88508A 40 72 22 2 13.1 9.4 8500 11000 0.35
88508 40 80 27 2 22.71 15.94 8000 10000 0.45
88509 45 85 27 2 24.36 17.71 7000 9000 0.54
62200 Series
62200 10 30 14 0.6 5.1 2.38 16000 20000 0.045
62201 12 32 14 0.6 6.82 3.05 15000 19000 0.05
62202 15 35 14 0.6 7.65 3.72 14000 18000 0.057
62203 17 40 16 0.6 9.58 4.47 13000 17000 0.083
62204 20 47 18 1 9.88 6.2 12000 16000 0.133
62205 25 52 18 1 10.78 6.98 11000 14000 0.15
62206 30 62 20 1 14.97 10.04 9000 12000 0.247
62207 35 72 23 1.1 19.75 13.67 8500 11000 0.313
62208 40 80 23 1.1 22.71 15.94 8000 1000 0.467
62209 45 85 23 1.1 24.36 17.71 7000 9000 0.48
62210 50 90 23 1.1 26.98 19.84 6500 8200 0.53
62300 Series
62300 10 35 17 0.6 5.88 3.47 17000 22000 0.065
62301 12 37 17 1 7.48 4.65 16500 21000 0.083
62302 15 42 17 1 8.8 5.43 16000 20000 0.108
62303 17 47 19 1 10.45 6.56 15000 19000 0.15
62304 20 52 21 1.1 12.26 7.81 13000 17000 0.201
62305 25 62 24 1.1 17.22 11.39 10000 13000 0.316
62306 30 72 27 1.1 20.77 14.17 9000 12000 0.5
62307 35 80 31 1.5 25.66 17.92 8000 10000 0.65
62308 40 90 33 1.5 31.35 22.38 7000 9000 0.87
62309 45 100 36 1.5 40.66 30 6300 7500 1.07
62310 50 110 40 2 47.58 35.71 6000 7000 1.41

Detailed Photos

Ball Bearings

1.0 Introduction

Ball bearings are used widely in instruments and machines in order to minimize friction and power loss. While the concept of the ball bearing dates back at least Leonardo da Vinci, their design and manufacture has become remarkably sophisticated. In the following we shall review their basic characteristics.
 

2.0 Types of Ball Bearings
Commercially available ball bearings, which are usually made from hardened steel, involve many forms of construction. These have been summarized by A.O. DeHart (“Which Bearings and Why”, ASME Paper 59-MD-12, 1959), from which source the following material (including Figures 1 & 2) is hereby reprinted*

“A typical deep-groove ball bearing designed for high-speed operation is shown in Figure 1. In this bearing, the separator serves to keep the balls from rubbing against 1 another as is piloted on the inner race OD. Alternatively, the separator may be piloted by the rolling elements or by the outer race ID. Where rotative speeds are low, the separator often is omitted. The rolling elements may take many forms – cylinders, balls, tapered rollers, barrels, or very slim rollers known as needles – and the whole bearing name is generally taken from this form.
 

Packaging & Shipping

FAQ

SAMPLES

1.Samples quantity: 1-10 pcs are available.
2.Free samples: It depends on the model NO., material and quantity. Some of the bearings samples need client to pay
samples charge and shipping cost.
3.It’s better to start your order with Trade Assurance to get full protection for your samples order.

CUSTOMIZED
The customized LOGO or drawing is acceptable for us.

MOQ
1.MOQ: 10 pcs mix different standard bearings.
2.MOQ:  3000 pcs customized your brand bearings.

OEM POLICY
1.We can printing your brand (logo,artwork)on the shield or laser engraving your brand on the shield.
2.We can custom your packaging according to your design
3.All copyright own by clients and we promised don’t disclose any info.

SUPORT
Please visit our bearings website, we strongly encourge that you can communicate with us through email,thanks!

We have all kinds of bearings, just tell me your item number and quantity,best price will be offered to you soon
The material of the bearings, precision rating, seals type,OEM service,etc, all of them we can make according to your requirement.

 

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Bearing Direction: Radial
Lubricating Film Thickness: Thin Film Lubrication
Presicion: P0, P6, P5, P4, P2
Bore Size: 3 – 2390 mm
Bushing Material: Self-Lubrication
Lubricating Way: Maintenance-Free Bearing
Samples:
US$ 1/Piece
1 Piece(Min.Order)

|
Request Sample

ball bearing

What are the Common Signs of Wear or Damage in Ball Bearings that Indicate the Need for Replacement?

Ball bearings are subjected to wear and stress during operation, and over time, they may exhibit signs of damage or deterioration that warrant replacement. Recognizing these signs is crucial to prevent catastrophic failure and ensure safe and reliable operation. Here are the common signs of wear or damage in ball bearings:

  • Unusual Noise:

If you hear unusual grinding, clicking, or rumbling noises coming from the bearing during operation, it may indicate worn-out or damaged components. Unusual noise suggests that the bearing is no longer operating smoothly.

  • Vibration:

Excessive vibration in the machinery can be a sign of bearing wear. Vibrations can result from uneven wear, misalignment, or damaged components within the bearing.

  • Increased Temperature:

Higher operating temperatures than usual may indicate increased friction due to inadequate lubrication, wear, or other issues. Monitoring the bearing’s temperature can help identify potential problems.

  • Irregular Movement:

If you notice irregular movement, jerking, or sticking during rotation, it could be a sign that the bearing is no longer operating smoothly. This may be due to damaged rolling elements or raceways.

  • Reduced Performance:

If the machinery’s performance has decreased, it may be due to a compromised bearing. Reduced efficiency, increased energy consumption, or a decline in overall performance could be indicators of bearing wear.

  • Visible Wear or Damage:

Inspect the bearing for visible signs of wear, such as pitting, scoring, or discoloration on the rolling elements or raceways. Severe wear or damage is a clear indication that the bearing needs replacement.

  • Leakage or Contamination:

If there is evidence of lubricant leakage, contamination, or the presence of foreign particles around the bearing, it suggests that the seal or shield may be compromised, leading to potential damage.

  • Looseness or Excessive Play:

If you can feel excessive play or looseness when manually moving the bearing, it could indicate worn-out components or misalignment.

  • Reduced Lifespan:

If the bearing’s expected lifespan is significantly shorter than usual, it may be due to inadequate lubrication, excessive loads, or improper installation, leading to accelerated wear.

  • Frequent Failures:

If the bearing is consistently failing despite regular maintenance and proper use, it could indicate a chronic issue that requires addressing, such as inadequate lubrication or misalignment.

It’s important to conduct regular inspections, monitor performance, and address any signs of wear or damage promptly. Replacing worn or damaged ball bearings in a timely manner can prevent further damage to machinery, reduce downtime, and ensure safe and efficient operation.

ball bearing

Are there any Industry Standards or Certifications that Ball Bearings should Meet?

Yes, there are several industry standards and certifications that ball bearings should meet to ensure their quality, performance, and reliability. These standards help manufacturers, engineers, and customers assess the suitability of bearings for specific applications. Some of the key standards and certifications for ball bearings include:

  • ISO Standards:

The International Organization for Standardization (ISO) has developed a series of standards related to ball bearings. ISO 15 defines dimensions, boundary dimensions, and tolerances for radial bearings. ISO 281 specifies dynamic load ratings and calculation methods for bearings’ life calculations.

  • ABEC (Annular Bearing Engineering Committee) Ratings:

ABEC ratings are commonly used in North America to indicate the precision and performance of ball bearings. Ratings range from ABEC 1 (lowest precision) to ABEC 9 (highest precision). However, it’s important to note that ABEC ratings focus primarily on dimensional tolerances and do not encompass all aspects of bearing quality.

  • DIN Standards:

The German Institute for Standardization (Deutsches Institut für Normung, DIN) has published various standards related to ball bearings. DIN 625 covers dimensions for deep groove ball bearings, while DIN 616 provides guidelines for precision angular contact ball bearings.

  • JIS (Japanese Industrial Standards):

JIS standards are used in Japan and internationally to define the characteristics and dimensions of various products, including ball bearings. JIS B 1512 outlines the classification and dimensions of rolling bearings.

  • ASTM (American Society for Testing and Materials) Standards:

ASTM has standards that cover various aspects of bearing testing, performance, and materials. ASTM F2215, for instance, specifies the requirements for ball bearings used in surgical implants.

  • CE Marking:

CE marking indicates that a product complies with European Union health, safety, and environmental requirements. It may be required for bearings used in machinery intended to be sold within the EU market.

  • Industry-Specific Standards:

Various industries, such as aerospace, automotive, medical, and nuclear, have specific standards or certifications that bearings must meet to ensure safety, reliability, and compliance with industry-specific requirements.

  • Quality Management Systems:

Manufacturers that adhere to quality management systems, such as ISO 9001, demonstrate their commitment to consistent product quality and customer satisfaction. Certification to these systems indicates that the manufacturing process follows established protocols and best practices.

When selecting ball bearings, it’s important to consider the relevant standards and certifications that align with the application’s requirements. This ensures that the bearings meet recognized quality and performance criteria, ultimately contributing to reliable and efficient operation.

ball bearing

How do Ball Bearings Differ from Other Types of Bearings like Roller Bearings?

Ball bearings and roller bearings are two common types of rolling-element bearings, each with distinct designs and characteristics. Here’s a comparison of ball bearings and roller bearings:

  • Design:

Ball Bearings: Ball bearings use spherical balls to separate and reduce friction between the bearing’s inner and outer rings. The balls enable rolling motion and smooth contact, minimizing friction.

Roller Bearings: Roller bearings, as the name suggests, use cylindrical or tapered rollers instead of balls. These rollers have larger contact areas, distributing loads over a broader surface.

  • Friction and Efficiency:

Ball Bearings: Due to the point contact between the balls and the rings, ball bearings have lower friction and are more efficient at high speeds.

Roller Bearings: Roller bearings have a larger contact area, resulting in slightly higher friction compared to ball bearings. They are more suitable for heavy-load applications where efficiency is prioritized over high speeds.

  • Load Capacity:

Ball Bearings: Ball bearings excel at handling light to moderate loads in both radial and axial directions. They are commonly used in applications where smooth rotation and low friction are important.

Roller Bearings: Roller bearings have a higher load-carrying capacity than ball bearings. They can support heavier radial and axial loads and are preferred for applications with significant loads or impact forces.

  • Variability:

Ball Bearings: Ball bearings come in various designs, including deep groove, angular contact, and thrust ball bearings, each suitable for different applications.

Roller Bearings: Roller bearings have diverse types, including cylindrical, spherical, tapered, and needle roller bearings, each optimized for specific load and motion requirements.

  • Speed Capability:

Ball Bearings: The reduced friction in ball bearings makes them suitable for high-speed applications, such as electric motors and precision machinery.

Roller Bearings: Roller bearings can handle higher loads but are generally better suited for moderate to low speeds due to slightly higher friction.

  • Applications:

Ball Bearings: Ball bearings are used in applications where smooth motion, low friction, and moderate loads are essential, such as electric fans, bicycles, and some automotive components.

Roller Bearings: Roller bearings find applications in heavy machinery, construction equipment, automotive transmissions, and conveyor systems, where heavier loads and durability are crucial.

In summary, ball bearings and roller bearings differ in their design, friction characteristics, load capacities, speed capabilities, and applications. The choice between them depends on the specific requirements of the machinery and the type of loads and forces involved.

China supplier 62300 62301 62302 62303 62304 62305 Deep Groove Ball Bearing Timkennsk CZPT CZPT CZPT C&U Bearing   bearing assemblyChina supplier 62300 62301 62302 62303 62304 62305 Deep Groove Ball Bearing Timkennsk CZPT CZPT CZPT C&U Bearing   bearing assembly
editor by CX 2024-04-16