Ball bearings are commonly used in a wide range of sports equipment. Knowing bearing sizes and dimensions helps to choose the right bearing for your application. The page provides ball bearing size charts, in which description of sizes of most used series given along with dimensional data, load ratings, weights and thin-section or special bearings size data.

Overview of Ball Bearing Size Chart

A ball bearing size chart provides the essential dimensions of bearings that is, inner diameter (bore, d), outer diameter (D), width (B) and more   such as dynamic and static load ratings, fillet radius (r) and weight. Accurate bearing selection is required so that the bearing does not produce vibration, noise, and friction or fails prematurely in application.

1. 6000 Series Ball Bearing Sizes Chart

The 6000 series ball bearings are widely used in general industrial and automotive applications. They offer compact dimensions with good load capacity.

Bearing No.	Bore (d) mm	Outer (D) mm	Width (B) mm	r mm	Dynamic Load (kgf)	Static Load (kgf)	Weight (g)
6000	10	26	8	0.5	360	196	19
6001	12	28	8	0.5	400	229	22
6002	15	32	9	0.5	440	263	30
6003	17	35	10	0.5	470	296	39
6004	20	42	12	1	735	465	69
6005	25	47	12	1	790	525	80
6006	30	55	13	1.5	1030	740	116
6007	35	62	14	1.5	1250	915	155
6008	40	68	15	1.5	1310	1010	192
6009	45	75	16	1.5	1640	1320	245
6010	50	80	16	1.5	1710	1430	261

2. 6200 Series Ball Bearing Sizes Chart

The 6200 series features higher load support and is often used in applications such as motors, pumps, and conveyors.

Bearing No.	Bore (d) mm	Outer (D) mm	Width (B) mm	r mm	Dynamic Load (kgf)	Static Load (kgf)	Weight (g)
6200	10	30	9	1	400	229	32
6201	12	32	10	1	535	305	37
6202	15	35	11	1	600	360	45
6203	17	40	12	1	750	460	65
6204	20	47	14	1.5	1000	635	106
6205	25	52	15	1.5	1100	730	128
6206	30	62	16	1.5	1530	1050	199
6207	35	72	17	2	2010	1430	288
6208	40	80	18	2	2280	1650	366
6209	45	85	19	2	2570	1880	407
6210	50	90	20	2	2750	2100	463

3. 6300 Series Ball Bearing Sizes Chart

The 6300 series offers larger diameters and higher load ratings suitable for heavier industrial equipment.

Bearing No.	Bore (d) mm	Outer (D) mm	Width (B) mm	r mm	Dynamic Load (kgf)	Static Load (kgf)	Weight (g)
6300	10	35	11	1	635	365	53
6301	12	37	12	1.5	760	450	60
6302	15	42	13	1.5	895	545	82
6303	17	47	14	1.5	1070	660	115
6304	20	52	15	2	1250	785	144
6305	25	62	17	2	1610	1080	232
6306	30	72	19	2	2090	1440	346
6307	35	80	21	2.5	2620	1840	457
6308	40	90	23	2.5	3200	2300	633
6309	45	100	25	2.5	4150	3100	833
6310	50	110	27	3	4850	3650	1070

4. Thin Section Bearings – 67, 68, 69 Series

Thin section bearings are used where compactness and lightweight design are required, such as robotics, aerospace, and specialized equipment.

Bearing No.	Bore (d) mm	Outer (D) mm	Width (B) mm	Dynamic Load (kgf)	Static Load (kgf)
6700	10	15	4	0.858	0.435
6701	12	18	4	0.929	0.533
6702	15	21	4	0.938	0.582
6703	17	23	4	1	0.658
6800	10	19	5	135	75
6801	12	21	5	150	91
6802	15	24	5	163	107
6803	17	26	5	206	135
6900	10	22	6	212	117
6901	12	24	6	227	133
6902	15	28	7	340	205
6903	17	30	7	360	228

5. Other Ball Bearing Sizes Chart

This extended chart includes other frequently used sizes in metric series ball bearings.

Bearing No.	Bore (d) mm	Outer (D) mm	Width (B) mm	Dynamic Load (kgf)	Static Load (kgf)	Weight (g)
62200	10	30	14	5.11	2.37	44
62201	12	32	14	6.82	3.06	53
62202	15	35	14	7.64	3.72	65
62203	17	40	16	9.57	4.79	96
62204	20	47	18	12.84	6.65	145
62205	25	52	18	14.02	7.88	172
62206	30	62	20	19.46	11.31	275
62207	35	72	23	25.67	15.3	410
62208	40	80	23	29.52	18.14	616
62209	45	85	23	31.67	20.68	625
62210	50	90	23	35.07	23.18	726

Importance of the Ball Bearing Size Chart

The ball bearing size chart lists different values and specifications of ball bearings for reference purposes.

How to Measure Ball Bearing Size

1. Measure Bore (d) – Inner diameter of the bearing using calipers.
2. Measure Outer Diameter (D) – The full outside diameter measurement.
3. Measure Width (B) – Thickness of bearing.
4. Use a Size Chart– Match your measurements with the measurements in the bearing size chart to find the correct series and model number.

Ball bearings can vary greatly in size. The particular type of bearing and the area it’ll be used in dictates the sizing of the ball bearing.  Ball bearings come in both metric and imperial sizes.

What are the standard ball bearing sizes I should know?

(1) Bearing Dimensions

The size of a ball bearing is defined by its main physical measurements:

• Bore diameter (d): the inner hole size
• Outer diameter (D): the outside size of the bearing
• Width or height (B or T): the thickness of the bearing
• Edge radius (r): the rounded corner at the edges

These dimensions are usually measured using tools like calipers or micrometers. After measuring, the values are matched with a bearing size chart to choose the correct bearing.

(2) Load Ratings

When in operation, the ball bearings support two kinds of operations, namely, axial and radial. The load ratings in the bearing charts show the maximum load a bearing can carry without premature failure.

A. Principles of Axial Bearings

Axial bearings are meant to take loads applied along the shaft (push or pull). They carry axial loads while lowering friction and enabling parts to move smoothly.

B. Principles of Radial Bearings

The most used bearings are radial bearings. These are created to bear up against loads perpendicular to the shaft. These bearings ensure stable support, reduces friction and enable easy rotation.

(3) Speed Ratings

Speed ratings indicate at which maximum speeds the bearing can safely operate. When exceeded, it can cause overheating, faster wear and early failure of the bearings.

(4) Clearance

Bearing clearance refers to the minimal internal distance between the balls and the raceways. The amount of movement allowed by the bearing and its ability to accommodate heat expansion during operation are affected.

(5) Problems Caused by Wrong Ball Bearing Size

Using a ball bearing that does not fit the size chart, or application can lead to different problems.

A. Increased Friction and Wear

Inaccurate bearing sizes lead to misalignment, extra friction as well. The bearings wear out quickly leading to decreased bearing life.

B. Reduced Efficiency

If a bearing is small or excessive in size, it will distribute loads improperly. This will decrease the efficiency of the machine.

C. Overheating

Bearings that are the wrong size create extra friction and more heat. Lubricants will be damaged, materials weakened and failures will occur.

D. Vibration and Noise

Using incorrect bearing sizes often leads to vibration and noise. Low fit and poor load distribution early warning indicators Technology level design data long-term damage 1 – 2 overhead crane design.

E. Frequent Failures and Downtime

Mis-aligned bearings likely to fail often, replacing with more frequent downtime. It raises upkeep charges and lowers efficiency.

F. Safety Risks

It could be dangerous to use the wrong bearing size in critical applications like those in automotive or aerospace systems. When bearings suddenly fail at high-speed or during heavy load applications, serious accidents and safety hazards can occur.

Why the Ball Bearing Size Chart Matters

Choosing a bearing just in diameter could result in an unfit bearing.

• More wear and tear.
• Excess heat while in use
• Less efficient.
• Untimely crack failure.
• Issues with noise and vibration.

Using the right size chart ensures bearings sit well on shafts and housings, will safely handle loads, and will run for as long as possible.

Final Summary

This useful Ball Bearing Size Chart lists the dimensions, load ratings, and weights for the ball bearing series: 6000, 6200, 6300, and thin section bearings plus other metric types. From precise size data from verified sources, you can match your specifications to ensure correct bearing selection and perform reliably in industrial, automotive, and precision applications.