What size is a 208 bearing?
DIMENSIONS
| d | 40 mm | Bore diameter | 
|---|---|---|
| B | 18 mm | Width | 
| d1 | ≈ 52.6 mm | Shoulder diameter | 
| D2 | ≈ 69.8 mm | Recess diameter | 
| r1,2 | min. 1.1 mm | Chamfer dimension | 
What is the most common bearing size?
Ball bearing size charts are widely available, and can be used to find the measurements of a specific bearing. Series 6200 and 6300 are the most commonly used, and typically range from 10 x 30 x 9 mm (. 394 x 1.181 x . 354 in) to 150 x 320 x 65 mm (5.906 x 12.598 x 2.559 in).
What size is a 609 bearing?
The 609 9 mm Ball Bearing Inner Dimension 9mm X Outer Dimension 24mm X Width 7mm is an open style ball bearing designed for high rotational speeds and high dynamic loads.
What size is 204 bearing?
DIMENSIONS
| d | 20 mm | Bore diameter | 
|---|---|---|
| D | 47 mm | Outside diameter | 
| B1 | 30.5 mm | Overall bearing width | 
| B | 21 mm | Width of inner ring | 
| C | 14 mm | Width of outer ring | 
How do you read a bearing number?
The first digit indicates the width or height series (dimensions B, T or H). The second digit identifies the diameter series (dimension D). The last two digits of the basic designation identify the size code of the bearing bore. The size code multiplied by 5 gives the bore diameter (d) in mm.
How do you select a bearing?
Selection of bearing type
- Installation space. Bearing can be installed in target equipment.
 - Load. Load magnitude, type and direction which applied.
 - Rotational speed. Response to rotational speed of equipment in which bearings will be installed.
 - Running accuracy.
 - Rigidity.
 - Misalignment.
 - Mounting and dismounting.