SKF Super-Precision Cylindrical Roller Bearings are engineered for ultra-high radial load capacity, precision, and rigidity in demanding applications requiring micron-level accuracy. Designed for machine tool spindles, aerospace systems, and high-speed industrial machinery, these bearings minimize friction and heat generation while delivering exceptional rotational stability.

SKF Super Precision Cylindrical Roller Bearings have the following characteristics:

High speed capability: These bearings are designed to operate in high-speed environments and can withstand high speeds without producing excessive noise, vibration, or heat

High radial load capacity: They can withstand large radial loads and are suitable for application scenarios that require high loads and high speeds

High rigidity: SKF ultra precision cylindrical roller bearings have high rigidity and can maintain stable performance under high loads

Low friction: These bearings have a low coefficient of friction, which helps reduce energy loss and improve equipment efficiency

Low cross-sectional height: Compared to other types of bearings, their cross-sectional height is lower, making them suitable for use in space constrained applications

Application scenarios

SKF ultra precision cylindrical roller bearings are particularly suitable for the following scenarios:

Machine tool spindle: Due to its high speed, high load capacity, and high rigidity, these bearings perform well in machine tool spindles, providing precise motion control and high-precision machining

Other high-precision applications: including high-speed rotating equipment, precision instruments, and other mechanical devices that require low friction and high load capacity

Design and Manufacturing Standards

The design and manufacturing of SKF ultra precision cylindrical roller bearings follow strict standards and specifications to ensure stable performance under various working conditions. These bearings are typically made of high-quality materials and advanced manufacturing processes to ensure their durability and reliability.

Material Technology

Rings & Rollers:

High-carbon chromium steel (AISI 52100): Hardness 60–64 HRC

Hybrid Ceramic Rollers (Si3N4): For electrical insulation and higher speeds

Cages:

Glass fiber-reinforced polyamide (PA66-GF25): Temperature-resistant up to +120°C

Bronze (CuSn8): For high-temperature or corrosive environments

Surface Treatments:

SKF NoWear® DLC coating: Reduces wear by 70%

Black oxide coating: Enhances corrosion resistance

Product Line Variants of SKF Super-Precision Cylindrical Roller Bearings

1. Standard Precision Series

N10 Series: Single-row, non-locating for radial loads

Applications: Gearboxes, pumps

NN30 Series: Double-row, self-aligning for combined loads

Applications: Paper mill rollers, steel processing

2. Super-Precision Series

N10-P4/P2: ABEC 7/9 grades for machine tool spindles

Features: Preloaded configurations for zero backlash

NN30-E: High-capacity design with optimized roller spacing

Features: Integrated lubrication grooves

3. Specialty Bearings

Vacuum-Grade (VG Series): Dry lubrication for semiconductor equipment

Corrosion-Resistant (CR Series): Stainless steel components for marine/chemical use

High-Temperature (HT Series): Ceramic cages and PFPE grease (+200°C)

SKF Super-Precision Cylindrical Roller Bearings set the benchmark for high-load, high-speed precision applications. Their advanced material science, precision manufacturing, and smart monitoring capabilities make them indispensable for industries requiring sub-micron accuracy and reliability.