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the first digit of the basic number is "6," so it means that we are dealing with a "single row deep groove ball bearing." Let’s check the meaning of the other numbers.
The 03 means 20mm bore size
The last two digits of the basic number denote the bore size of the bearing. See the table below to see the different bore sizes.
|
Third & Fourth Digits |
Bore size (mm) |
|
00 |
10 |
|
01 |
12 |
|
02 |
15 |
6203 bearings |
|---|
| Item ID | Name | Price | |
|---|---|---|---|
#1494727
|
Koyo Bearing 6203 Open Type, Deep Groove Ball Bearing, 17 mm Inner Diameter x 40 mm Outer Diameter x 12 mm Width |
$6.54
Each
|
|
#320725
|
SKF-Bearing 6203 |
$9.67
Each
|
|
#5082197
|
Timken (Fafnir) 6203 Ball Deep Groove Radial <12 OD ISO |
$7.24
Each
|
|
#5033628
|
NSK 6203 6200 SERIES SINGLE ROW DEEP GROOVE BALL BEARING |
$10.49
Each
|
|
#284006
|
NTN 6203 SMALL SIZE BALL BRG(STANDARD) |
$32.81
Each
|
|