
Bearing model |
d |
D |
B |
Bearing model |
d |
D |
B |
Bearing model |
d |
D |
B |
Bearing model |
d |
D |
B |
Bearing model |
d |
D |
B |
602 |
2 |
7 |
3.5 |
623 |
3 |
10 |
4 |
633 |
3 |
13 |
5 |
691 |
1.5 |
5 |
2 |
681 |
1 |
3 |
1 |
603 |
3 |
9 |
5 |
624 |
4 |
13 |
5 |
634 |
4 |
16 |
5 |
692 |
2 |
6 |
3 |
681 |
1.5 |
4 |
2 |
604 |
4 |
12 |
4 |
625 |
5 |
16 |
5 |
635 |
5 |
19 |
6 |
693 |
3 |
8 |
4 |
682 |
2 |
5 |
2 |
605 |
5 |
14 |
5 |
626 |
6 |
19 |
6 |
636 |
6 |
22 |
7 |
694 |
4 |
11 |
4 |
683 |
3 |
7 |
3 |
606 |
6 |
17 |
6 |
627 |
7 |
22 |
7 |
637 |
7 |
26 |
9 |
695 |
5 |
13 |
4 |
684 |
4 |
9 |
4 |
607 |
7 |
19 |
6 |
628 |
8 |
24 |
8 |
638 |
8 |
28 |
9 |
696 |
6 |
15 |
5 |
685 |
5 |
11 |
5 |
608 |
8 |
22 |
7 |
629 |
9 |
26 |
8 |
639 |
9 |
30 |
10 |
697 |
7 |
17 |
5 |
686 |
6 |
13 |
5 |
609 |
9 |
24 |
7 |
6200 |
10 |
30 |
9 |
6300 |
10 |
35 |
11 |
698 |
8 |
19 |
6 |
687 |
7 |
14 |
5 |
6000 |
10 |
26 |
8 |
6201 |
12 |
32 |
10 |
6301 |
12 |
37 |
12 |
699 |
9 |
20 |
6 |
688 |
8 |
16 |
5 |
6001 |
12 |
28 |
8 |
6202 |
15 |
35 |
11 |
6302 |
15 |
42 |
13 |
6900 |
10 |
22 |
6 |
689 |
9 |
17 |
5 |
6002 |
15 |
32 |
9 |
6203 |
17 |
40 |
12 |
6303 |
17 |
47 |
14 |
6901 |
12 |
24 |
6 |
6800 |
10 |
19 |
5 |
6003 |
17 |
35 |
10 |
6204 |
20 |
47 |
14 |
6304 |
20 |
52 |
15 |
6902 |
15 |
28 |
7 |
6801 |
12 |
21 |
5 |
6004 |
20 |
42 |
12 |
6205 |
25 |
52 |
15 |
6305 |
25 |
62 |
17 |
6903 |
17 |
30 |
7 |
6802 |
15 |
24 |
5 |
6005 |
25 |
47 |
12 |
6206 |
30 |
62 |
16 |
6306 |
30 |
72 |
19 |
6904 |
20 |
37 |
9 |
6803 |
17 |
26 |
5 |
6006 |
30 |
55 |
13 |
6207 |
35 |
72 |
17 |
6307 |
35 |
80 |
21 |
6905 |
25 |
42 |
9 |
6804 |
20 |
32 |
7 |
6007 |
35 |
62 |
14 |
6208 |
40 |
80 |
18 |
6308 |
40 |
90 |
23 |
6906 |
30 |
47 |
9 |
6805 |
25 |
37 |
7 |
6008 |
40 |
68 |
15 |
6209 |
45 |
85 |
19 |
6309 |
45 |
100 |
25 |
6907 |
35 |
55 |
10 |
6806 |
30 |
42 |
7 |
6009 |
45 |
75 |
16 |
6210 |
50 |
90 |
20 |
6310 |
50 |
110 |
27 |
6908 |
40 |
62 |
12 |
6807 |
35 |
47 |
7 |
6010 |
50 |
80 |
16 |
6211 |
55 |
100 |
21 |
6311 |
55 |
120 |
29 |
6909 |
45 |
68 |
12 |
6808 |
40 |
52 |
7 |
6011 |
55 |
90 |
18 |
6212 |
60 |
110 |
22 |
6312 |
60 |
130 |
31 |
6910 |
50 |
72 |
12 |
6809 |
45 |
58 |
7 |
6012 |
60 |
95 |
18 |
6213 |
65 |
120 |
23 |
6313 |
65 |
140 |
33 |
6911 |
55 |
80 |
13 |
6810 |
50 |
65 |
7 |
6013 |
65 |
100 |
18 |
6214 |
70 |
125 |
24 |
6314 |
70 |
150 |
35 |
6912 |
60 |
85 |
13 |
6811 |
55 |
72 |
9 |
6014 |
70 |
110 |
20 |
6215 |
75 |
130 |
25 |
6315 |
75 |
160 |
37 |
6913 |
65 |
90 |
13 |
6812 |
60 |
78 |
10 |
6015 |
75 |
115 |
20 |
6216 |
80 |
140 |
26 |
6316 |
80 |
170 |
39 |
6914 |
70 |
100 |
16 |
6813 |
65 |
85 |
10 |
6016 |
80 |
125 |
22 |
6217 |
85 |
150 |
28 |
6317 |
85 |
180 |
41 |
6915 |
75 |
105 |
16 |
6814 |
70 |
90 |
10 |
6017 |
85 |
130 |
22 |
6218 |
90 |
160 |
30 |
6318 |
90 |
190 |
43 |
6916 |
80 |
110 |
16 |
6815 |
75 |
95 |
10 |
6018 |
90 |
140 |
24 |
6219 |
95 |
170 |
32 |
6319 |
95 |
200 |
45 |
6917 |
85 |
120 |
18 |
6816 |
80 |
100 |
10 |
6019 |
95 |
145 |
24 |
6220 |
100 |
180 |
34 |
6320 |
100 |
215 |
47 |
6918 |
90 |
125 |
18 |
6817 |
85 |
110 |
13 |
6020 |
100 |
150 |
24 |
6221 |
105 |
190 |
36 |
6321 |
105 |
225 |
49 |
6919 |
95 |
130 |
18 |
6818 |
90 |
115 |
13 |
6021 |
105 |
160 |
26 |
6222 |
110 |
200 |
38 |
6322 |
110 |
240 |
50 |
6920 |
100 |
140 |
20 |
6819 |
95 |
120 |
13 |
6022 |
110 |
170 |
28 |
6224 |
120 |
215 |
40 |
6324 |
120 |
260 |
55 |
6921 |
105 |
145 |
20 |
6820 |
100 |
125 |
13 |
|
|
|
|
|
Bearing model |
d |
D |
B |
Bearing model |
d |
D |
B |
Bearing model |
d |
D |
B |
Bearing model |
d |
D |
B |
Bearing model |
d |
D |
B |
671 |
1 |
2 |
1 |
MR52 |
2 |
5 |
2.5 |
R1-4 |
1.984 |
6.350 |
3.571 |
16000 |
10 |
28 |
8 |
62200 |
10 |
30 |
14 |
672 |
2 |
4 |
2 |
MR62 |
2 |
6 |
2.5 |
R1-5 |
2.380 |
7.938 |
3.571 |
16001 |
12 |
28 |
7 |
62201 |
12 |
32 |
14 |
673 |
3 |
6 |
2.5 |
MR72 |
2 |
7 |
3 |
R133 |
2.380 |
4.762 |
2.380 |
16002 |
15 |
32 |
8 |
62202 |
15 |
35 |
14 |
674 |
4 |
7 |
2.5 |
MR82 |
2.5 |
8 |
2.5 |
R144 |
3.175 |
2.380 |
2.779 |
16003 |
17 |
35 |
8 |
62203 |
17 |
40 |
16 |
675 |
5 |
8 |
2.5 |
MR63 |
3 |
6 |
2 |
R2-5 |
3.175 |
7.938 |
3.571 |
16004 |
20 |
42 |
8 |
62204 |
20 |
47 |
18 |
676 |
6 |
10 |
3 |
MR63 |
3 |
6 |
2.5 |
R2-6 |
3.175 |
9.525 |
3.571 |
16005 |
25 |
47 |
8 |
62205 |
25 |
52 |
18 |
677 |
7 |
11 |
3 |
MR83 |
3 |
8 |
2.5 |
R155 |
3.967 |
7.938 |
3.175 |
16006 |
30 |
55 |
9 |
62206 |
30 |
62 |
20 |
678 |
8 |
12 |
3.5 |
MR83 |
3 |
8 |
3 |
R156 |
4.762 |
7.938 |
3.175 |
16007 |
35 |
62 |
9 |
62207 |
35 |
72 |
23 |
679 |
9 |
14 |
4.5 |
MR93 |
3 |
9 |
2.5 |
R166 |
4.762 |
9.525 |
3.175 |
16008 |
40 |
68 |
9 |
62208 |
40 |
80 |
23 |
6700 |
10 |
15 |
4 |
MR93 |
3 |
9 |
4 |
R168 |
6.350 |
9.525 |
3.175 |
16009 |
45 |
75 |
10 |
62209 |
45 |
85 |
23 |
6701 |
12 |
18 |
4 |
MR74 |
4 |
7 |
2 |
R188 |
6.350 |
12.700 |
3.175 |
16010 |
50 |
80 |
10 |
62210 |
50 |
90 |
23 |
6702 |
15 |
21 |
4 |
MR74 |
4 |
7 |
2.5 |
R1810 |
7.938 |
12.700 |
3.967 |
62900 |
10 |
22 |
7 |
63000 |
10 |
26 |
12 |
6703 |
17 |
23 |
4 |
MR84 |
4 |
8 |
2 |
R2 |
3.175 |
9.525 |
3.967 |
62800 |
10 |
19 |
6 |
63001 |
12 |
28 |
12 |
6704 |
20 |
27 |
4 |
MR84 |
4 |
8 |
3 |
R2A |
3.175 |
12.700 |
4.366 |
63800 |
10 |
19 |
7 |
63002 |
15 |
32 |
13 |
6705 |
25 |
32 |
4 |
MR104 |
4 |
10 |
3 |
R3 |
4.762 |
12.700 |
4.978 |
63801 |
12 |
21 |
7 |
63003 |
17 |
35 |
14 |
6706 |
30 |
37 |
4 |
MR104 |
4 |
10 |
4 |
R3A |
4.762 |
15.875 |
4.978 |
63802 |
15 |
24 |
7 |
63004 |
20 |
42 |
16 |
6707 |
35 |
44 |
5 |
MR85 |
5 |
8 |
2 |
R4 |
6.350 |
15.875 |
4.978 |
63803 |
17 |
26 |
7 |
63005 |
25 |
47 |
16 |
6708 |
40 |
50 |
6 |
MR85 |
5 |
8 |
2.5 |
R4A |
6.350 |
19.050 |
7.412 |
62000 |
10 |
30 |
9 |
63006 |
30 |
55 |
19 |
6709 |
45 |
55 |
6 |
MR95 |
5 |
9 |
2.5 |
R6 |
9.525 |
22.225 |
7.412 |
62001 |
12 |
28 |
10 |
63007 |
35 |
62 |
24 |
6710 |
50 |
62 |
6 |
MR95 |
5 |
9 |
3 |
R8 |
12.700 |
28.575 |
7.938 |
60/22 |
22 |
44 |
12 |
63008 |
40 |
68 |
21 |
6711 |
55 |
68 |
7 |
MR105 |
5 |
10 |
3 |
R10 |
15.875 |
34.925 |
8.731 |
62/22 |
22 |
50 |
14 |
62300 |
10 |
35 |
17 |
MR117 |
7 |
11 |
3 |
MR105 |
5 |
10 |
4 |
R12 |
19.050 |
41.275 |
11.113 |
63/22 |
22 |
56 |
16 |
62301 |
12 |
37 |
17 |
MR137 |
7 |
13 |
4 |
MR115 |
5 |
11 |
4 |
R14 |
22.225 |
47.625 |
12.700 |
60/28 |
28 |
52 |
12 |
62302 |
15 |
42 |
17 |
MR128 |
8 |
12 |
2.5 |
MR106 |
6 |
10 |
2.5 |
R16 |
25.400 |
50.800 |
12.700 |
62/28 |
28 |
58 |
16 |
62303 |
17 |
47 |
19 |


The 6305 bearing stands as a versatile and frequently employed single-row deep groove ball bearing. To truly appreciate its excellence, we delve into a comprehensive analysis encompassing specification parameters, performance characteristics, application fields, and even its installation and maintenance specifics, alongside brand pricing insights. Discover why it's the preferred choice across various domains and applications.
I. Specification Parameters
The 6305 bearing boasts standard dimensions that ensure a perfect fit and functionality:
Inner diameter (d): 25 mm - A precise size delivering optimal compatibility.
Outer diameter (D): 62 mm - Crafted for a seamless interface with surrounding components.
Thickness (B): 17 mm - Designed for robust performance and long-lasting reliability.
Weight: Approximately 0.232 kg - Slight variations may occur across different brands, ensuring adaptability.
Minimum chamfer (r min): 1.1 mm - This fine detail underscores the precision engineering of the bearing.
Rated dynamic load (C): 20.6 kN (approximately 2100 kgf) - Built to withstand significant operational stresses.
Rated static load: 11.2 kN (approximately 1150 kgf) - Ensures stability under static conditions, enhancing durability.
Limiting speed: 11,000 r/min for grease lubrication and 13,000 r/min for oil lubrication - These figures reflect the bearing's efficiency, influenced by sealing type and tolerance grade.
II. Performance Characteristics
Load Capacity:
This bearing is adept at handling radial loads while also accommodating bidirectional axial loads. Its deep groove design ensures stability even at high speeds, making it an ideal choice for medium-load environments.
Friction Characteristics:
Featuring a point contact design between its rolling elements and raceways, it offers a low friction coefficient and minimizes heat generation, suiting high-speed applications.
Sealing Type:
Open (without sealing): Requires regular lubrication replenishment and is suited for clean environments.
Dust cover (suffix Z/ZZ): Effectively prevents dust ingress, prolonging the life of the lubricating grease.
Sealing ring (suffix RS/2RS): Provides robust contact sealing, defending against both dust and oil, ideal for challenging conditions.
Materials and Processes:
Typically crafted from bearing steel like GCr15, with select brands offering high-temperature alloys or graphite for specialized uses, adapting to unique working environments.
III. Application Fields
The 6305 bearing finds extensive application across a diverse range of industries and equipment:
Industrial Machinery:
Key components in motors, pumps, fans, reducers, and compressors, where reliability is paramount.
Textile Machinery (such as spinning equipment, chemical fiber machinery).
Food Processing Equipment (such as sterilizers, packaging machines).
Automotive and Transportation:
Essentials in engine cooling fans, water pumps, gearboxes, ensuring smooth and efficient operation.
Agricultural Machinery (including tractors, and harvesters).
Home Appliances and Tools:
Vital for air conditioning compressors and washing machine motors, enhancing household appliance efficiency.
Power tools (such as electric drills, angle grinders).
Other Fields:
Crucial in medical equipment like monitors and centrifuges, where precision is essential.
Employed in precision machinery, including testing machines, gantry milling machines, and injection molding machines.
IV. Installation and Maintenance
Installation Method
Press Fit:
Utilize a press or a specially designed sleeve (such as an installation sleeve with an inner diameter of 26 mm and an outer diameter of 38 mm) to seamlessly press the bearing onto the shaft or housing, ensuring a snug fit and avoiding direct impact.
Heating Fit:
Embrace the power of thermal expansion by heating the bearing to a precise 80-100°C, ensuring not to surpass 120°C. This method allows a seamless installation that, once cooled, guarantees a robust and secure fit.
Alignment and Clearance Adjustment:
Maintain perfect coaxial alignment between the shaft and the bearing housing to prevent any unwanted tilting, ensuring optimal performance and longevity.
For bearings with tapered bores, achieve precision by fine-tuning the radial clearance through the meticulous adjustment of the locking nut.
Maintenance Key Points
Lubrication:
Opt for lithium-based or advanced synthetic grease, filling the internal bearing space to 1/3-1/2, ensuring smooth and efficient operation.
Choose the perfect lubricating oil with viscosity tailored to speed and temperature needs (such as ISO VG 32-100), and maintain vigilance by regularly checking the oil level.
Sealing and Cleaning:
Keep the bearing's surface pristine by routinely cleaning dust and replacing any worn sealing rings to maintain peak performance.
Guard against the intrusion of water or chemicals, safeguarding your bearings from rust and potential damage.
Monitoring and Inspection:
Vigilantly monitor temperature, vibration, and noise during operation. Act swiftly to halt the machinery and troubleshoot at the first sign of abnormalities.
Regularly assess the clearance; promptly replace the bearing when it exceeds the prescribed value to ensure optimal efficiency.
Understand the hierarchy of sealing types: open < dust cover < sealing ring, to select the best option for your needs.
Navigate through tolerance grades: P0 < P6 < P5, choosing the perfect fit for your specific requirements.
VII. Fault Diagnosis and Life Calculation
Common Faults and Causes
Overheating: Often a result of insufficient lubrication, overly tight seals, or excessive load, requiring immediate attention.
Abnormal noise: Signals issues like excessive clearance, worn rolling elements, or a skewed bearing, necessitating prompt diagnosis.
Increased vibration: Indicates potential poor installation, a bent shaft, or a loose fit, demanding immediate correction.
Rust: Arises from seal failure, exposure to humid environments, or degraded lubricating grease, calling for preventive measures.
Life Calculation
Estimate the bearing's life utilizing the formula:
L = (C/P) × 10 revolutions
Where:
C: Represents the rated dynamic load (kN), crucial for accurate calculations.
P: Denotes the equivalent dynamic load (kN), essential for precise life estimation.
p: Life index, with values of 3 for ball bearings and 10/3 for roller bearings, providing clarity in calculations.
Consider factors like lubrication, temperature, and pollution, impacting actual life. A safety reserve (typically 1.5-3) is advised for assurance.
Selection Precautions:
Choose sealing and tolerance grades wisely, based on load, speed, and temperature, for optimal performance.
In high-temperature environments, opt for high-temperature alloy bearings to ensure durability and efficiency.
For frequent disassembly needs, models with a retaining ring, like 6305NR, are recommended for convenience.
Characteristics and performance features of deep groove ball bearings
1. Structural features: Deep groove ball bearings exhibit a continuous groove-type raceway, with each ring cross-sectioned at
approximately one-third of the ball's circumference. This design allows them to adeptly withstand radial
loads alongside a notable degree of axial forces, enhancing versatility.
2. Load-bearing capacity: Celebrated for their outstanding load-bearing capacity, deep groove ball bearings endure substantial radial forces with ease.
axial loads. This exceptional capability stems from the intricate geometric design of its robust inner and outer rings, complemented by the utilization of high-strength materials.
3. Friction characteristics: Deep groove ball bearings boast an impressively low friction coefficient, facilitating unparalleled speed and efficiency.
high. Such characteristics make these bearings an ideal choice for high-speed mechanical equipment, ensuring optimal performance.
4. Wear resistance performance: The surfaces of the inner and outer rings of deep groove ball bearings are meticulously heat-treated for high precision.
treatment. This process bestows them with remarkable hardness and formidable wear resistance, effectively mitigating mechanical failures and minimizing repair
costs caused by wear. This advanced durability ensures longevity and reliability.
5. Maintenance convenience: Featuring a straightforward structure, deep groove ball bearings are user-friendly and demand minimal maintenance.
maintenance. This simplicity significantly enhances their reliability and economic value in practical applications, providing peace of mind.
6. Application scope: Deep groove ball bearings are remarkably versatile, finding applications across a plethora of industries.
such as precision instruments, low-noise motors, automobiles, motorcycles, and general machinery, showcasing their adaptability.
7. Diversity of types: A wide array of deep groove ball bearings is available, including models with dust covers, rubber seals, and stop grooves.
deep groove ball bearings with rubber seals, and deep groove ball bearings with stop grooves. These varieties cater to diverse working conditions and performance
different working conditions and performance requirements, ensuring tailored solutions for specific needs.
Shandong Linqing Taixu Bearing Manufacturing Co., Ltd. is a leading enterprise specializing in
the production of general equipment. Established in 2018, our core offerings encompass deep
groove ball bearings, outer spherical bearings, shaft sleeves, one-way bearings, and stainless steel
bearings. We also provide zinc alloy bearings, flange bearings, tapered roller bearings, linear motion bearings,
joint bearings, printing machine bearings, and agricultural machinery bearings, boasting an extensive variety
of options tailored to meet diverse needs.
The company's business scope further extends to bearing manufacturing, along with the production and
sales of bearings, gears, and transmission parts. We also specialize in the processing and sales of mechanical components and
components, while offering a range of machine tool functional parts and accessories, sales of premium metal products,
retail of premium hardware products, and seamless Internet sales (except for licensed goods).
licensed).
Our company prides itself on strong, long-term partnerships with multiple retailers and agents.
tailers and agents! Taixu Bearing is committed to maintaining its credibility, fulfilling contracts, and ensuring
stable product quality. By emphasizing diverse business characteristics and adhering to the principle of
small profits, high sales volume, we have garnered immense trust from a broad customer base.
The company proudly owns and manages its distinctive trademark.



1. What is the minimum order quantity for this product?
We are committed to accommodating our customers' needs and are open to negotiations to find the best solution.
2. What is the delivery time?
For sample orders, delivery is swift within 3-5 days, while bulk orders are efficiently managed within 5-15 days.
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With digital production, our products promise high precision, exceptional speed, and minimal noise.
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sample
1. Sample size: We offer 1-10 PCs for your selection.
2. Sample availability: It varies based on the model, materials, and quantity. For some bearings, you might need to cover the sample and transportation expenses.
3. For complete peace of mind, initiate your order through trade assurance to ensure full protection for your sample request.
custom
We warmly welcome custom logos or drawings as per your specifications.
MOQ
1. MOQ: You can mix and match 10 PCS from different standard bearings.
2. MOQ: Create a personalized touch with 3000 PCS featuring your own brand bearings.
OEM Policy
1. We offer the option to print your brand (logo, artwork) on the shield or engrave it for a personalized touch.
2. Packaging can be fully customized according to your unique design, reflecting your brand's identity.
3. Rest assured, all copyrights remain with you, and we guarantee absolute confidentiality of any shared information.