ZIBOO
ZIBOO NTN 6338 Single Row Radial Ball Bearing 190x400x78mm
Single-row radial ball bearing with open type design measuring 190x400x78mm
- Open design enables easy lubrication access
- 190 mm bore fits large shaft assemblies
- 400 mm outer diameter supports heavy radial loads
- 78 mm width provides stable load distribution
ZIBOO NTN 6338 Radial Ball Bearing
The ZIBOO NTN 6338 is a single row radial ball bearing designed for rotating machinery that requires low friction and high-speed capability. Its open type construction allows direct lubrication access and suits applications where external sealing is provided separately. Electricians and maintenance technicians fitting motor shafts or gearboxes will find the 190 mm bore, 400 mm outer diameter and 78 mm width match standard mounting dimensions.
Open type limits contamination protection
Because the bearing is supplied open, it has no integral shields or seals to retain grease or exclude dirt, moisture and abrasive particles. Installers must provide external sealing arrangements and a regular relubrication schedule to prevent premature wear. The design is therefore unsuitable for environments where sealing cannot be reliably maintained or where maintenance intervals are excessively long.
Highlights
- Open design enables easy lubrication access
- 190 mm bore fits large shaft assemblies
- 400 mm outer diameter supports heavy radial loads
- 78 mm width provides stable load distribution
Specifications
| Brand | ZIBOO |
|---|---|
| Model | NTN 6338 |
Questions about this item
Which open-type radial ball bearing matches the 190x400x78mm size?
The NTN 6338 is the exact open-type single-row radial ball bearing with 190mm bore, 400mm outer diameter and 78mm width.
What does the 190mm bore mean when the bearing is installed?
The 190mm bore fits a shaft of that diameter, so the bearing seats directly on a 190mm journal without adapters.
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