Overview
The NTN 6214LLBC3/5C is a single row radial ball bearing engineered for industrial automation, mechanical power transmission, and motion control applications. This bearing features non-contact labyrinth seals (LLBC suffix) that provide positive sealing at all times while permitting precision tolerances even at high-speed operation. Made by NTN, one of the world’s three largest bearing manufacturers with over ninety years of expertise, this bearing delivers dependable performance in demanding industrial environments.
Key Features
- Single row deep groove design for radial and combined radial-thrust loads
- C3 internal clearance class optimized for normal operating conditions
- Non-contact labyrinth seals (LLBC) retain lubricant and exclude contaminants
- Steel cage construction for strength and reliability
- Precision tolerances rated for high-speed operation
- New in box condition with factory sealing
Technical Specifications
This bearing meets ISO P0 precision tolerance standards and is suitable for ABEC 1 applications. The 70 mm bore accommodates standard shaft sizes while the 125 mm outer diameter provides stable mounting surfaces. The 24 mm outer race width distributes loads effectively across the bearing raceway.
Typical Applications
- Machine tool spindles and rotating equipment
- Pump and motor bearings in industrial settings
- Conveyor systems and material handling equipment
- Gearbox and transmission components
- Industrial motors and electric drives
Compatibility & Replacements
Compatible With
- Standard shaft sizes: 70 mm nominal bore
- Bearing housings with 125 mm OD mounting surfaces
- Industrial machinery designed for ISO 286 metric tolerances
- Systems requiring C3 clearance class bearings
Replaces / Drop-In Replacement For
- Other NTN 6214-series bearings with equivalent bore and OD dimensions
- Verify compatibility with your equipment specifications before ordering
Works With
- Standard bearing installation tools and procedures
- Mineral and synthetic lubricants per ISO VG 32-46 recommendations
- Pressure and induction heating methods for installation




