High Precision Spindle Bearings

Product Description

Bearings optimised to get the best from your machine

The range of precision bearings has been developed by NTN experts in close collaboration with some of the biggest names in machine tools. The benefit of the range?

• Productivity: optimised production cost
• Accuracy: high-quality machining
• Reliability: reduced maintenance costs
• Eco-design: environmental protection

A wide range of high-precision bearings for all your needs

Spindle bearings

• High Precision Angular contact ball bearings - Standard, High-Speed and Ultra-high-speed
• High precision cylindrical roller bearings with 1 or 2 rows of rollers - Standard and High-Speed
• Angular Contact Ball Bearings for Axial loads

Ball screw support bearings

• BSTU - sealed
• BST - open/sealed
• A focus on technology in all our ranges

Cage technology

Our cages are made from resin polyamide for the best price/performance ratio.

• T2: cage in innovative and high performance polyamide resin for precision angular contact ball bearings for machine tools. It allows rising temperatures to be lowered to reach higher speeds.
• T6: PEEK cage, light and sturdy, specially designed for spindle bearings on cylindrical rollers Its design and ability to store grease allows to reduce heat generation and therefore reach higher speeds.

And we also offer:

• T1: cage in phenolic resin for high speed angular contact ball bearings capable of maximum speeds.
• Special steel 2LA

Characteristics:

• Optimised chemical composition of steel
• An unique surface modification technique

Benefits:

• Reduction of maintenance costs
• Higher operational reliability

Special heat treatment 2A

Characteristics:

• Optional for ball screw support bearings (BST)
• 80% less fretting corrosion while sliding
• 90% less fretting corrosion while rolling

Benefits:

• Environmentally
• Longer service life & high reliability

Internal designs optimized for ultra-high speed and top ranges

• NTN has developed ultra-high speed and top ranges by working on the internal designs and technologies of cages.
• Radial angular contact ball bearing  super precision, high or ultra-high speed
• Cylindrical roller bearings  high precision and ultra-high speed

Each application has an optimum preload

• 4 levels of standard preload: Light (GL), normal (GN), central preload (GM), high preload (GH)
• And specially preloaded on request

Hybrid versions with ceramic balls, optionally throughout the entire range

These hybrid versions boost the performance of our bearings and those of your machine tools: speed (+30%), rigidity (+10%), useful life (x3)