System of Measurement System of Measurement |
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Bearing Trade Number Bearing TradeNumber | Show |
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Bearing Trade Number Bearing Trade Number | Hide |
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For Shaft Diameter For Shaft Diameter |
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For Housing ID For Housing ID |
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OD OD |
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Ball Bearing Type Ball Bearing Type |
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![]() | Standard |
Ball Material Ball Material |
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Seal Type Seal Type |
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Ring Material Ring Material |
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ID ID |
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Dynamic Radial Load Capacity Dynamic Radial Load Capacity |
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Maximum Speed Maximum Speed |
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For Shaft Type For Shaft Type |
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![]() | Round |
Bearing Type Bearing Type |
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![]() | Ball |
For Load Direction For Load Direction |
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![]() | Radial |
Inner Ring Type Inner Ring Type |
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![]() | Standard |
Cage Material Cage Material |
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Construction Construction |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Ball and Roller Bearings
More
Ball Bearings
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
For technical drawings and 3-D models, click on a part number.

Radial Load Cap., lbs. | |||||||||||||
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Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Specifications Met | Each | |
6303-2Z | 17mm | 47mm | 14mm | Steel | 3,000 | 1,450 | 16,000 | Lubricated | -20° to 230° | ABEC-1 | DIN 625-1 | 00000000 | 000000 |
Precision Ball Bearings

For greater accuracy and higher speeds, these bearings are made to tighter tolerances than standard ball bearings.
Shielded bearings dissipate heat more efficiently than sealed bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
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Bearing Trade Number | For Shaft Dia., mm | For Housing ID, mm | Wd., mm | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Shielded | ||||||||||||
6303-2Z | 17 | 47 | 14 | Steel | 3,200 | 1,450 | 17,000 | Lubricated | -30° to 240° | ABEC-3 | 0000000 | 000000 |
Stainless Steel Ball Bearings
Bearings are 440C stainless steel for good corrosion resistance.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
For technical drawings and 3-D models, click on a part number.

Radial Load Cap., lbs. | ||||||||||||
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Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
6303-2Z | 17mm | 47mm | 14mm | 440C Stainless Steel | 2,600 | 1,150 | 16,000 | Lubricated | -40° to 240° | ABEC-1 | 00000000 | 000000 |