Products

Bearing Rings Factory

As a creative Bearing Rings Company and China Bearing Rings Factory, we offer productions and services for industry equipment and makes an industry chain platform about bearings with international level to promote efficiency and reduce cost.Through ten year's growth, we not only provide single row deep groove ball bearings, stainless steel deep groove ball bearings, double row deep groove ball bearings and other standard bearings for customers but also offer professional non-standard bearings order service to our customers. We have owned the international authoritative system certifications like ISO. We also offer detailed wholesale Bearing Ring size chart.

Number	Model	Product Size
Number	Model	Outer Diameter	Bearing Bore	Height
1	683	4.2	2.7	3.4
2	693	4.2	2.7	4.4
3	R2	4.5	2.8	4.4
4	604	6.1	3.5	4.4
5	694	6.1	3.5	4.4
6	R2	6.2	2.8	4.4
7	624	6.5	3.5	5.4
8	C115	6.7	4.5	4.4
9	685	6.9	4.5	5.4
10	R3	7.2	4.2	4.4
11	605	7.5	4.5	5.5
12	695	7.5	4.5	4.5
13	634	7.7	3.5	5.5
14	625	7.7	4.5	5.5
15	1260	7.9	5.5	4.4
16	683	8.2	6.2	3.4
17	686	8.2	5.5	5.5
18	693	8.2	6.2	4.4
19	625	8.85	4.5	5.5
20	696	8.85	5.5	5.5
21	MR166	8.85	5.5	6.5
22	R4	8.85	5.9	5.5
23	1601	9.2	4.2	6.85
24	1601	9.2	4.2	8.4
25	606	9.2	5.5	6.5
26	1602	9.2	5.85	6.85
27	1602	9.2	5.85	8.4
28	687	9.2	6.5	5.5
29	635	9.5	4.5	6.5
30	626	9.5	5.5	6.5
31	R4A	9.5	5.8	6.0
32	607	9.5	6.5	6.5
33	1480	10	7.2	4.4
34	626	10.5	5.5	6.5
35	607	10.5	6.5	6.5
36	688	10.5	7.5	5.5
37	698	10.5	7.5	6.5
38	626	10.8	5.5	6.5
39	607	10.8	6.5	6.5
40	688	10.8	7.5	5.5
41	698	10.8	7.5	6.5
42	698	11.2	7.5	6.5
43	694-Outer	11.2	8.6	4.5
44	685-Outer	11.2	8.6	5.5
45	689	11.2	8.6	5.5
46	636	12	5.5	7.5
47	627	12	6.5	7.5
48	608	12	7.5	7.5
49	1603	12	7.5	7.65
50	1603	12	7.5	8.25
51	699	12.2	8.5	5.5
52	699	12.2	8.5	6.5
53	604-Outer	12.2	8.8	4.5
54	1260-Outer	12.2	9.8	4.5
55	608	12.5	7.5	7.5
56	627	12.6	6.5	7.5
57	608	12.6	7.5	7.5
58	6800	12.8	95	5.5
59	637	13	6.5	9.5
60	628	13	7.5	8.5
61	1605	13	7.5	8.45
62	609	13	8.5	7.5
63	R6	13	9	7.65
64	1604	13	9	7.65
65	1604	13	9	9.25
66	1606*	13	9	8.45
67	624-Outer	13.2	9.7	5.5
68	695-Outer	13.2	9.7	4.5
70	628	13.2	7.5	8.5
71	609	13.3	8.5	7.5
72	6900*	13.9	9.5	6.5
73	1607*	13.9	10.7	8.4
74	638*	14.2	7.5	9.5
75	629	14.2	8.5	8.5
76	MR148-Outer*	14.2	11.5	4.5
77	6000	14.2	9.5	8.5
78	605-Outer	14.2	10.5	5.5
79	687-Outer*	14.2	11.5	5.5
80	629	14.8	8.5	8.5
81	6000	14.8	9.5	8.5
82	6000	15	9.5	8.5
83	629	15	8.5	8.5
84	6801	15	11.5	5.5
85	696-Outer	15.2	12	5.5
86	6901	15.2	11.5	6.5
87	6700-Outer	15.2	13.3	4.5
88	6901	15.9	11.5	6.5
89	R4-Outer	16.2	12	5.5
90	MR166-Outer	16.2	12	6.5
91	625-Outer	16.2	12.3	5.5
92	635-Outer	16.2	12.3	5.5
93	688-Outer	16.2	13.1	5.5
94	6001	16.8	11.5	8.5
95	R8	16.8	12	8.5
96	6001	17.2	11.5	8.5
97	6200	17.2	9.5	9.5
98	6300	17.2	9.5	11.5
99	639*	17.6	8.5	10.5
100	6200	17.6	9.5	9.5
101	6001	17.6	11.5	8.5
102	6201	17.6	11.5	10.5
103	R8	17.6	12	8.5
104	6200	17.9	9.5	9.5
105	6201	17.9	11.5	10.5
106	6300	18.2	9.5	11.5
107	6201	18.2	11.5	10.5
108	6301	18.2	11.5	12.5
109	6300	18.5	9.5	11.5
110	6201	18.5	11.5	10.5
111	6301	18.5	11.5	12.5
112	6300	18.8	9.5	11.5
113	6301	18.8	11.5	12.5
114	6300	19.5	9.5	11.5
115	6301	19.5	11.5	12.5
116	6300	19.65	9.5	11.5
117	6301	20.03	11.5	12.5
118	16002	20.2	14.5	8.5
119	6002	20.2	14.5	9.5
120	6202	20.2	14.5	11.5
121	16002	20.6	14.5	8.5
122	6002	20.6	14.5	9.5
123	6202	20.6	14.5	11.5
124	6202	21.2	14.5	11.5
125	6202	21.8	14.5	11.5
126	6203	24.2	16.5	12.5
127	6302	24.5	14.5	13.5
128	6203	24.8	16.5	12.5

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Industry knowledge development

Bearing rings are crucial components in various machinery and mechanical systems, providing essential support and minimizing friction during rotational movements. These circular-shaped components are designed to encircle the rolling elements of bearings, such as balls or rollers, to maintain their position and enable smooth motion. Bearing rings play a vital role in facilitating the proper functioning and longevity of bearings, making them indispensable in a wide range of industries, including automotive, aerospace, industrial machinery, and more.

Types of Bearing Rings

Bearing rings come in a variety of types, each designed to fulfill specific requirements based on the application, load capacity, and operational conditions. Understanding the different types of bearing rings is essential for selecting the most suitable option for a particular machinery or system.

Outer Rings:

The outer ring, also known as the outer race or outer raceway, is the larger of the two bearing rings and encircles the rolling elements (balls or rollers) in a bearing. It provides external support to the bearing, ensuring the rolling elements stay in position and preventing them from coming into contact with external elements. The outer ring's primary function is to maintain the structural integrity of the bearing and facilitate smooth rotation.

Materials: Outer rings are usually made from robust materials, most commonly steel (such as chrome steel) or stainless steel. In some cases, bearings designed for specific environments or extreme conditions may feature outer rings made from ceramic materials.

Inner Rings:

The inner ring, also known as the inner race or inner raceway, is the smaller of the two bearing rings and fits inside the outer ring. It creates a raceway for the rolling elements and allows axial movement of the shaft relative to the housing. Inner rings are vital components when axial load capacity is a primary consideration.

Materials: Inner rings are typically made from the same durable materials as outer rings, such as steel or stainless steel. In certain applications, where weight reduction is crucial, inner rings may also be made from lightweight materials like aluminum.

Tapered Roller Bearing Cups and Cones:

Tapered roller bearings consist of two main components: cups and cones. The bearing cups are the outer rings with a tapered raceway, and the bearing cones are the inner rings with corresponding tapered rollers. This design enables efficient transfer of both radial and axial loads, making tapered roller bearings suitable for applications involving combined loading.

Applications: Tapered roller bearings find extensive use in automotive wheel bearings, industrial gearboxes, construction equipment, and other heavy machinery applications.

Materials: The materials used for tapered roller-bearing cups and cones are typically high-quality steel, providing excellent strength and wear resistance.

Cylindrical Roller Bearing Rings:

Cylindrical roller bearing rings are specific types of bearing rings used in cylindrical roller bearings. These rings have cylindrical raceways and can accommodate heavy radial loads and moderate axial loads. The design of cylindrical roller bearings allows for better alignment and distribution of load across the length of the rollers.

Applications: Cylindrical roller bearings are commonly used in applications where high radial load capacity is required, such as electric motors, machine tool spindles, and industrial pumps.

Materials: Cylindrical roller bearing rings are typically made from steel, which provides the necessary strength and durability to withstand the loads and stresses involved in these applications.

Spherical Roller Bearing Rings:

Spherical roller bearing rings are specialized bearing rings used in spherical roller bearings. Unlike other types of bearings that have linear contact between the rolling elements and raceways, spherical roller bearings have a spherical raceway on the outer ring. This design allows the bearing to accommodate misalignment and shaft deflection, making them suitable for applications with misaligned or vibrating shafts.

Applications: Spherical roller bearings are commonly used in applications such as heavy machinery, paper mills, and mining equipment, where misalignment and vibration are prevalent.

Materials: Spherical roller bearing rings are typically made from steel, and in some cases, high-quality versions may feature additional surface treatments or coatings for increased durability and resistance to corrosion.

Needle Roller Bearing Rings:

Needle roller bearing rings are used in needle roller bearings, a type of roller bearing that uses cylindrical rolling elements with a very small diameter (compared to their length). Needle roller bearings offer high load-carrying capacity with minimal radial space requirements, making them suitable for compact and lightweight designs.

Applications: Needle roller bearings are commonly used in automotive transmissions, motorcycle engines, and certain aerospace applications.

Materials: Needle roller-bearing rings are often made from high-carbon chrome-bearing steel or through-hardened steel for enhanced durability.

Advancements and Innovations of Bearing Rings

Advancements and innovations in bearing ring technology have been instrumental in enhancing the performance, reliability, and longevity of bearings across various industries. Manufacturers and researchers continue to explore new materials, design improvements, and smart technologies to address specific challenges and push the boundaries of bearing ring capabilities. Here are some of the notable advancements and innovations in bearing rings:

Material Innovations:

Advancements in material science have led to the development of bearing rings made from advanced materials that offer superior performance and enhanced characteristics compared to traditional steel bearings.

Ceramic Bearings:

Ceramic bearing rings have gained popularity due to their exceptional properties, including high strength, low density, and excellent corrosion resistance. Silicon nitride (Si3N4) and zirconia (ZrO2) are the most common ceramic materials used in bearing rings. Ceramic bearings are particularly advantageous in applications with high-speed rotations and corrosive environments. They reduce friction, dissipate heat efficiently, and have a longer service life, making them well-suited for demanding industrial and aerospace applications.

Hybrid Bearings:

Hybrid bearings combine ceramic rolling elements (balls or rollers) with steel bearing rings. This hybrid construction capitalizes on the benefits of both materials, such as reduced weight, increased stiffness, and improved thermal properties. Hybrid bearings are widely used in high-performance applications, including high-speed electric motors and precision machinery.

Surface Coatings and Treatments:

Advancements in surface coatings and treatments have enhanced the durability and performance of bearing rings. These coatings provide various benefits, such as increased wear resistance, improved corrosion protection, and reduced friction. Some notable surface treatments include:

Diamond-Like Carbon (DLC) Coatings:

DLC coatings are applied to bearing rings to reduce friction, extend service life, and enhance resistance to wear and abrasion. These coatings are particularly valuable in high-load and high-speed applications, contributing to improved overall efficiency and reliability.

Nitriding and Carburizing:

Nitriding and carburizing are surface treatments used to harden the bearing rings, enhancing their resistance to wear and fatigue. These processes create a hardened layer on the surface of the rings, maintaining the core toughness of the material while providing superior performance in harsh operating conditions.

Sealing Technology:

Effective sealing is crucial for preventing contamination, retaining lubricants, and ensuring the longevity of bearings. Advancements in sealing technology have led to the development of more efficient and reliable sealing solutions for bearing rings.

Labyrinth Seals:

Labyrinth seals are non-contact seals designed to create a tortuous path for contaminants, preventing them from reaching the bearing area. These seals are effective in environments with high levels of debris or dust, providing enhanced protection to the bearing rings.

Contact Seals:

Contact seals, such as lip seals and rubber shields, provide a physical barrier between the rolling elements and the external environment. These seals offer excellent protection against contaminants and are commonly used in applications where low to moderate sealing effectiveness is required.