N Series Thin-Section Ball Bearings
Overview
Extremely thin-section ball bearings contribute to equipment downsizing, lighter weight, and low torque in robots, construction equipment, and industrial machinery.
With lower frictional torque and less torque variation, N Series bearings improve torque transmission and provide smooth rotation. These high-precision bearings also support high speeds.
Features
- Equipment downsizing
The thinnest NB-7 Series deep groove ball bearings minimize the space necessary for the bearings, allowing for even smaller and lighter equipment. - Convenient options
Series 68 and 69 thin-section deep groove ball bearings come in both open and sealed varieties, with plans for further improved sealing performance. Maintenance-free types and bearings with a locating snap ring are also available to help simplify the surrounding structure.
Applications
- Robot axes, robot speed reducers, harmonic drives, RV gearboxes, automobile drive gears
FAQs
Both DD and DDU refer to contact rubber seals. The slim wall structure of thin-section bearings makes it impossible to process seal grooves on the inner ring outside diameter, so a DD-type seal lip (seal tip) is applied to a step.Miniature bearings also use the DD type in the same way due to their size. Other standard models use DDU designations.
Catalogs
Search our full listing of catalogs for more details.
2D/3D CAD Data
Download 2D & 3D CAD model files and spec. sheets for NSK products through PARTcommunity.
This free service is provided by CADENAS GmbH.
