Bearing Dimension Chart
Verified by Rachel Mayfield, Supply Chain Analyst - April 2026
Dimensions, dynamic load ratings, static load ratings, and limiting speeds for the three most common deep groove ball bearing series: 6000 (extra light), 6200 (light), and 6300 (medium). Bearing Dimension Chart All values are per ISO 15 and ISO 281 for standard open bearings with steel cage. Sealed variants (2RS, ZZ) have 5-15% lower limiting speeds.
6000 Series - Extra Light
| Bearing | d (mm) | D (mm) | B (mm) | Dynamic C (kN) | Static C0 (kN) | Limiting Speed (rpm) |
|---|---|---|---|---|---|---|
| 6000 | 10 | 26 | 8 | 4.75 | 1.96 | 32000 |
| 6001 | 12 | 28 | 8 | 5.07 | 2.24 | 30000 |
| 6002 | 15 | 32 | 9 | 5.59 | 2.36 | 28000 |
| 6003 | 17 | 35 | 10 | 6.05 | 2.65 | 26000 |
| 6004 | 20 | 42 | 12 | 9.36 | 4.50 | 22000 |
| 6005 | 25 | 47 | 12 | 10.1 | 5.00 | 20000 |
| 6006 | 30 | 55 | 13 | 13.3 | 6.95 | 17000 |
| 6007 | 35 | 62 | 14 | 15.9 | 8.50 | 15000 |
| 6008 | 40 | 68 | 15 | 16.8 | 9.30 | 13000 |
| 6009 | 45 | 75 | 16 | 19.0 | 10.8 | 12000 |
| 6010 | 50 | 80 | 16 | 19.5 | 11.6 | 11000 |
| 6012 | 60 | 95 | 18 | 27.5 | 17.0 | 9500 |
| 6014 | 70 | 110 | 20 | 33.5 | 21.2 | 8000 |
| 6016 | 80 | 125 | 22 | 40.5 | 27.0 | 6700 |
| 6018 | 90 | 140 | 24 | 48.5 | 33.0 | 6000 |
| 6020 | 100 | 150 | 24 | 48.5 | 34.0 | 5600 |
6200 Series - Light
| Bearing | d (mm) | D (mm) | B (mm) | Dynamic C (kN) | Static C0 (kN) | Limiting Speed (rpm) |
|---|---|---|---|---|---|---|
| 6200 | 10 | 30 | 9 | 5.07 | 2.36 | 30000 |
| 6201 | 12 | 32 | 10 | 6.89 | 3.10 | 28000 |
| 6202 | 15 | 35 | 11 | 7.65 | 3.60 | 26000 |
| 6203 | 17 | 40 | 12 | 9.56 | 4.75 | 22000 |
| 6204 | 20 | 47 | 14 | 12.7 | 6.55 | 18000 |
| 6205 | 25 | 52 | 15 | 14.8 | 7.80 | 16000 |
| 6206 | 30 | 62 | 16 | 19.5 | 11.2 | 14000 |
| 6207 | 35 | 72 | 17 | 25.5 | 15.3 | 12000 |
| 6208 | 40 | 80 | 18 | 29.1 | 17.8 | 10000 |
| 6209 | 45 | 85 | 19 | 31.9 | 19.5 | 9500 |
| 6210 | 50 | 90 | 20 | 35.1 | 21.6 | 9000 |
| 6212 | 60 | 110 | 22 | 43.6 | 28.0 | 7500 |
| 6214 | 70 | 125 | 24 | 55.3 | 36.0 | 6300 |
| 6216 | 80 | 140 | 26 | 61.8 | 41.5 | 5600 |
| 6218 | 90 | 160 | 30 | 81.9 | 56.0 | 4800 |
| 6220 | 100 | 180 | 34 | 95.6 | 67.0 | 4300 |
6300 Series - Medium
| Bearing | d (mm) | D (mm) | B (mm) | Dynamic C (kN) | Static C0 (kN) | Limiting Speed (rpm) |
|---|---|---|---|---|---|---|
| 6300 | 10 | 35 | 11 | 8.06 | 3.45 | 26000 |
| 6301 | 12 | 37 | 12 | 9.75 | 4.15 | 24000 |
| 6302 | 15 | 42 | 13 | 11.4 | 5.40 | 22000 |
| 6303 | 17 | 47 | 14 | 13.5 | 6.55 | 18000 |
| 6304 | 20 | 52 | 15 | 15.9 | 7.80 | 16000 |
| 6305 | 25 | 62 | 17 | 22.5 | 11.4 | 13000 |
| 6306 | 30 | 72 | 19 | 28.1 | 14.6 | 11000 |
| 6307 | 35 | 80 | 21 | 33.2 | 18.0 | 9500 |
| 6308 | 40 | 90 | 23 | 41.0 | 24.0 | 8000 |
| 6309 | 45 | 100 | 25 | 48.5 | 28.5 | 7000 |
| 6310 | 50 | 110 | 27 | 61.8 | 38.0 | 6300 |
| 6312 | 60 | 130 | 31 | 81.9 | 52.0 | 5000 |
| 6314 | 70 | 150 | 35 | 104 | 69.5 | 4300 |
| 6316 | 80 | 170 | 39 | 124 | 83.0 | 3600 |
How to use the bearing dimension chart
The bore diameter (d) is the shaft size the bearing fits on. The outside diameter (D) is the housing bore. Width (B) is the axial dimension. To select a bearing: start with the bore size to match your shaft, then choose the series based on load requirements.
For the same bore size, the 6300 series has a larger OD and higher load capacity than the 6200 series, which in turn is larger than the 6000 series. Use 6000 series where space is tight and loads are light. Use 6300 series for heavy radial loads.
Dynamic load rating (C) is used to calculate bearing L10 life: L10 = (C/P)^3 x 10^6 revolutions, where P is the equivalent dynamic load. Static load rating (C0) applies to stationary or slow-rotating bearings (under 10 rpm).
Related standards
- ISO 15 - Rolling bearings: radial bearings, boundary dimensions
- ISO 281 - Rolling bearings: dynamic load ratings and rating life
- ISO 492 - Rolling bearings: radial bearings, tolerances
- ISO 5593 - Rolling bearings: vocabulary
- BS ISO 15 - UK adoption of ISO 15
References
- ISO 15:2017 - Rolling bearings - radial bearings, boundary dimensions
- ISO 281:2007 - Dynamic load ratings and rating life
- SKF Bearing Catalogue - Product data reference
Frequently Asked Questions
What is the difference between 6200 and 6300 series bearings?
For the same bore diameter, a 6300 series bearing has a larger outside diameter, wider width, and higher load capacity than a 6200. For example, a 6205 (25mm bore) has a 52mm OD and 14.8 kN dynamic rating, while a 6305 (also 25mm bore) has a 62mm OD and 22.5 kN dynamic rating. Use 6300 series when you need higher load capacity and have space for the larger housing.
How do I calculate bearing life from the dynamic load rating?
Use the L10 formula: L10 (millions of revolutions) = (C / P) ^ 3, where C is the basic dynamic load rating from the table and P is the equivalent dynamic bearing load. For example, a 6205 with C = 14.8 kN under a 3 kN load: L10 = (14.8/3)^3 = 119.9 million revolutions.
What does the bearing bore code mean?
For bearing designations ending in 04 or higher, multiply the last two digits by 5 to get the bore in mm. So 6205 = 05 x 5 = 25mm bore. Exceptions: 00 = 10mm, 01 = 12mm, 02 = 15mm, 03 = 17mm. A 6308 has a bore of 08 x 5 = 40mm.
What does the Bearing Dimension Chart provide information about for engineers?
The Bearing Dimension Chart provides detailed dimensions and load ratings for deep groove ball bearings in the 6000 (extra light), 6200 (light), and 6300 (medium) series. It includes dynamic and static load ratings, as well as limiting speeds according to ISO standards.
How do sealed variants of these bearings differ from standard open bearings in terms of performance?
Sealed variants like 2RS and ZZ have 5-15% lower limiting speeds than standard open bearings with steel cages. This reduction is due to the additional sealing that limits airflow within the bearing, affecting its maximum operating speed.
Which ISO standards does the Bearing Dimension Chart adhere to for ensuring consistency in measurements?
The Bearing Dimension Chart adheres to ISO 15 and ISO 281 for standard open bearings with steel cages, providing consistent and reliable data across different manufacturers and models.
What factors should UK engineers consider when choosing between the 6000 (extra light), 6200 (light), and 6300 (medium) bearing series?
Engineers should consider the specific application's load requirements and operating conditions, such as dynamic and static loads. The 6000 series is extra light with lower load capacities compared to the heavier 6300 series.
Can you recommend any UK suppliers that provide bearings conforming to the dimensions listed in the Bearing Dimension Chart?
Major UK bearing manufacturers like NSK, SKF, and NTN offer bearings conforming to the dimensions detailed in the Bearing Dimension Chart. These companies typically have online catalogs and distribution networks throughout the UK.
How does the cost of these bearings vary based on their series (6000, 6200, or 6300)?
The cost can vary significantly depending on the bearing's size and load capacity. Generally, as you move from the 6000 extra light to the 6300 medium series, both the dimensions and the price increase due to higher material usage and improved load-bearing capabilities.
What information is provided in the 'Limiting Speed (rpm)' column of the Bearing Dimension Chart?
The 'Limiting Speed (rpm)' column indicates the maximum permissible rotational speed for each bearing model before it reaches its fatigue life limit or experiences premature failure. This value is important for selecting bearings that can operate safely within specified applications.