6305 Deep Groove Ball Bearing 256217 | GCr15 Single Row - High Speed, Low Friction | China Suppliers & Factory

Single-Row Design: Our bearings feature a single-row design that effectively accommodates radial forces and certain axial forces. With a simple structure and options for open types or dust-sealed variations (such as 6305-ZZ, 6305-2RS), these products offer strong versatility and adaptability to various working conditions. They are perfect for applications requiring low friction and high-speed performance, making them a reliable choice for customers sourced from China.

Deep Groove Structure: Engineered to withstand radial loads and bidirectional axial loads, our deep groove ball bearings possess exceptional performance. When designed with large radial clearance, they exhibit characteristics similar to angular contact bearings, allowing them to support substantial axial loads. As a leading supplier from China, we ensure quality to meet diverse industrial needs.

Low Friction: Our bearings are designed with rolling elements that maintain point contact with the raceway, resulting in a minimal friction coefficient. This design significantly reduces energy loss and enhances mechanical efficiency, making them an excellent choice for manufacturers and factories seeking reliable solutions.

High-Speed Capability: Our optimized designs minimize noise and vibration, facilitating increased rotation speeds. These bearings are specifically suitable for high-speed applications, catering to demanding requirements in various industrial sectors. Partner with us, a trusted China supplier, to enhance your production line with our advanced bearing solutions.

Product Details

Bearing Detail

Item No.	6305
Bearing Type	Deep groove ball bearing
Seals Type	Open, ZZ, 2RS
Material	Chrome steel GCr15
Precision	P0, P2, P5, P6, P4
Clearance	C0, C2, C3, C4, C5
Cage Type	Brass, steel, nylon, etc.
Vibration	Z1V1, Z2V2, Z3V3, Z4V4
Hardness	59-63HRC
Specification	656217 mm
Basic Dynamic Load Rating (C)	20,600 N
Basic Static Load Rating (C0)	11,200 N
Limit Speed	11,000 r/min
Ball Bearings Feature	• Long-life with high quality • Low-noise with strict controlling the quality of JITO bearing • High-load by the advanced high-technical design • Competitive price, which has the most valuable • OEM service offered, to meet the customers requirements
Application	Mill rolling mill rolls, crusher, vibrating screen, printing machinery, woodworking machinery, all kinds of industry
Bearing Package	Pallet, wooden case, commercial packaging or as customers' requirement

Features and Applications

Single-Row Design

Bearing radial force and certain axial force. Simple structure, Open (without seal) or with dust cover (such as 6305-ZZ, 6305-2RS). Strong versatility, and can adapt to a variety of working conditions. Applicable to low friction and high speed.

Deep Groove Structure

Can withstand radial loads and bidirectional axial loads. When the deep groove ball bearing has a large radial clearance, it has the performance of an angular contact bearing and can withstand a large axial load.

Low Friction

The rolling element and the raceway are in point contact, and the friction coefficient is very small, which can reduce energy loss and improve mechanical efficiency.

High-Speed Capability

After optimization, it can reduce noise and vibration, thereby increasing the rotation speed, and is suitable for high-speed rotation occasions.

Typical Applications

Industrial Machinery

Such as plate rolling machine tools, mining metal detectors and other equipment, 6305 deep groove ball bearings can withstand radial loads and ensure stable operation of the equipment.

Transportation

In vehicles such as automobiles and railway vehicles, it is used to support components such as drive shafts and wheels, and withstand radial and axial loads during vehicle driving.

Home Appliance Field

In the motors of home appliances such as washing machines and air conditioners, it can reduce friction, reduce noise, and improve the service life and performance of home appliances.

Installation & Maintenance

Installation Guidelines

Be careful not to damage the bearing during installation. Use appropriate tools, such as deep groove ball bearing puller kits, to ensure that the bearing is installed in place.

Maintenance Recommendations

Due to its low friction coefficient, it requires much less maintenance than many other bearing types. However, it is still necessary to regularly check the operating status of the bearing, including temperature, noise, vibration, etc., to detect and deal with problems in a timely manner.

Deep Groove Ball Bearing Catalogue

Bearing Numbers								Boundary Dimensions (mm)				Basic Load Ratings (N)		Weight
Bearing Numbers								d	D	B	r	Dynamic (Cr)	Static (Cor)	kg (approx.)
	N	Z	2Z	RZ	2RZ	RS	2RS	-	-	-	-	-	-	-
6003	6003N	6003-Z	6003-2Z	6003-RZ	6003-2RZ	6003-RS	6003-2RS	17	35	10	0.3	6	3.25	0.04
6004	6004N	6004-Z	6004-2Z	6004-RZ	6004-2RZ	6004-RS	6004-2RS	20	42	12	0.6	9.38	5.03	0.068
6005	6005N	6005-Z	6005-2Z	6005-RZ	6005-2RZ	6005-RS	6005-2RS	25	47	12	0.6	10.1	5.83	0.079
6006	6006N	6006-Z	6006-2Z	6006-RZ	6006-2RZ	6006-RS	6006-2RS	30	55	13	1	13.2	8.3	0.113
6007	6007N	6007-Z	6007-2Z	6007-RZ	6007-2RZ	6007-RS	6007-2RS	35	62	14	1	16.2	10.4	0.149
6008	6008N	6008-Z	6008-2Z	6008-RZ	6008-2RZ	6008-RS	6008-2RS	40	68	15	1	17	11.7	0.185
6009	6009N	6009-Z	6009-2Z	6009-RZ	6009-2RZ	6009-RS	6009-2RS	45	75	16	1	21	14.8	0.231
6010	6010N	6010-Z	6010-2Z	6010-RZ	6010-2RZ	6010-RS	6010-2RS	50	80	16	1	22	16.3	0.25
6011	6011N	6011-Z	6011-2Z	6011-RZ	6011-2RZ	6011-RS	6011-2RS	55	90	18	1	30.3	22	0.362
6012	6012N	6012-Z	6012-2Z	6012-RZ	6012-2RZ	6012-RS	6012-2RS	60	95	18	1.1	31.7	24.2	0.385
6013	6013N	6013-Z	6013-2Z	6013-RZ	6013-2RZ	6013-RS	6013-2RS	65	100	18	1.1	32	24.8	0.43
6014	6014N	6014-Z	6014-2Z	6014-RZ	6014-2RZ	6014-RS	6014-2RS	70	110	20	1.1	38.6	30.4	0.569
6015	6015N	6015-Z	6015-2Z	6015-RZ	6015-2RZ	6015-RS	6015-2RS	75	115	20	1.1	40.2	33.2	0.603
6016	6016N	6016-Z	6016-2Z	6016-RZ	6016-2RZ	6016-RS	6016-2RS	80	125	22	1.1	47.5	39.8	0.821
6017	6017N	6017-Z	6017-2Z	6017-RZ	6017-2RZ	6017-RS	6017-2RS	85	130	22	1.1	50.8	42.8	0.848
6018	6018N	6018-Z	6018-2Z	6018-RZ	6018-2RZ	6018-RS	6018-2RS	90	140	24	1.5	58	49.9	1.12
6019	6019N	6019-Z	6019-2Z	6019-RZ	6019-2RZ	6019-RS	6019-2RS	95	145	24	1.5	57.7	50	1.18
6020	6020N	6020-Z	6020-2Z	6020-RZ	6020-2RZ	6020-RS	6020-2RS	100	150	24	1.5	60.5	54	1.25
6202	6202N	6202-Z	6202-2Z	6202-RZ	6202-2RZ	6202-RS	6202-2RS	15	35	11	0.6	7.8	3.75	0.045
6203	6203N	6203-Z	6203-2Z	6203-RZ	6203-2RZ	6203-RS	6203-2RS	17	40	12	0.6	9.56	4.75	0.065
6204	6204N	6204-Z	6204-2Z	6204-RZ	6204-2RZ	6204-RS	6204-2RS	20	47	14	1	12.7	6.55	0.103
6205	6205N	6205-Z	6205-2Z	6205-RZ	6205-2RZ	6205-RS	6205-2RS	25	52	15	1	14	7.8	0.127
6305	6305N	6305-Z	6305-2Z	6305-RZ	6305-2RZ	6305-RS	6305-2RS	25	62	17	1.1	22.5	11.6	0.219
6306	6306N	6306-Z	6306-2Z	6306-RZ	6306-2RZ	6306-RS	6306-2RS	30	72	19	1.1	28.1	16	0.35
6307	6307N	6307-Z	6307-2Z	6307-RZ	6307-2RZ	6307-RS	6307-2RS	35	80	21	1.5	33.2	19	0.454
6308	6308N	6308-Z	6308-2Z	6308-RZ	6308-2RZ	6308-RS	6308-2RS	40	90	23	1.5	31.4	22.4	0.639

If more, please click our website www.jito.cc

Advantage

Solution

At the beginning, we will have a communication with our customers on their demand, then our engineers will work out an optimum solution based on the customers’ demand and condition.

Quality Control (Q/C)

In accordance with ISO standards, we have professional Q/C staff, precision testing instruments and internal inspection system, the quality control is implemented in every process from material receiving to products packaging to ensure our bearings quality.

Package

Standardized export packing and environment-protected packing material are used for our bearings, the custom boxes, labels, barcodes etc. can also be provided according to our customer’s request.

Logistic

Normally, our bearings will be sent to the customers by ocean transportation due to its heavy weight, airfreight, express is also available if our customers need.

Warranty

We warrant our bearings to be free from defects in material and workmanship for a 12 months period from the shipping date, this warranty is voided by non-recommended use, improper installation or physical damage.

Frequently Asked Questions

What are the main specifications and load ratings of the 6305 bearing?

The 6305 deep groove ball bearing features boundary dimensions of 25 mm bore diameter (d), 62 mm outer diameter (D), and 17 mm width (B). It has a basic dynamic load rating (C) of 20,600 N, a basic static load rating (C0) of 11,200 N, and a limiting speed of up to 11,000 r/min.

What sealing configurations are available for 6305 bearings?

The bearing is available in multiple seal configurations, including Open (unsealed for high-speed oil-lubricated environments), ZZ (shielded with steel dust covers on both sides), and 2RS (contact rubber seals providing enhanced protection against dust, debris, and moisture).

Can deep groove ball bearings support axial loads?

Yes. While primarily designed for radial loads, deep groove ball bearings can handle bidirectional axial loads. When designed with a larger radial internal clearance, their performance resembles angular contact bearings, allowing them to support significant axial loads.

What industries commonly use deep groove ball bearings?

They are widely utilized across industrial machinery (mill rolling mills, crushers, vibrating screens, printing/woodworking machinery), transportation systems (automotive and rail vehicle drive shafts and wheels), and household appliances (electric motors in washing machines and air conditioners).

What does the 12-month bearing warranty cover?

The warranty guarantees that the bearings are free from defects in material and workmanship for 12 months from the shipping date. Please note that the warranty is voided by non-recommended use, improper installation, or external physical damage.

Do you offer OEM and custom packaging solutions?

Yes, comprehensive OEM services are available. Custom solutions, including customized bearing packaging boxes, specific labels, barcodes, and tailored pallets or wooden cases, can be provided according to exact customer requirements.

6305 Deep Groove Ball Bearing 256217 | GCr15 Single Row - High Speed, Low Friction | China Suppliers & Factory

Bearing Detail