• Small Robotic Joints and End Effectors
• Stepper Motor and Servo Motor Assemblies
• Automated Guided Vehicle (AGV) Wheels
• Linear Actuator Lead Screw Supports

• Centrifuges and Blood Analysis Machines
• Dental Handpiece Components
• Microtome and Lab Stirrer Mechanisms
• Ventilator Blower Systems

• Encoder and Resolver Bearings
• Small DC Motor Armatures
• Textile Spindle Tension Pulleys
• Print and Labeling Machine Rollers

• High-Speed Printer and Copier Rollers
• Hard Drive Spindle Motors (Legacy/Industrial)
• Small Cooling Fan Modules
• Optical Scanning Equipment

01. Ultra-Thin, Lightweight Profile

Manufactured from high-purity chrome steel (GCr15), this bearing features a 6 mm width while maintaining a large 40 mm inner diameter. This "thin-section" design allows for significant downsizing of housings and shafts without compromising rotational stability.

02. Maintenance-Free Operation

The double rubber seals (2RS) are manufactured from synthetic rubber (NBR) and lightly contact the inner ring. This provides a labyrinth-like barrier that permanently retains the factory-applied grease while preventing ingress of dust and moisture, effectively creating a "lubricated for life" component.

03. Smooth, Low-Noise Performance

The miniature balls and precision-ground raceways are manufactured to strict vibration standards. This ensures exceptionally quiet operation and low vibration levels, which is critical for medical and office automation equipment where noise pollution is a primary concern.

Interchange Part Numbers

Common manufacturer equivalents include:

• SKF: 6708-2RS
• NSK: 6708VV
• FAG: 6708-2RS
• NTN: 6708LLU
• KOYO: 6708-2RS / 6708-2RSE
• TIMKEN: 6708-2RS
• MRC: 6708-2RS

Design & Configuration

The 6708-2RS comes standard with double rubber seals, making it the preferred choice for applications requiring "fit and forget" reliability in environments with fine dust or incidental moisture exposure. For applications requiring the absolute lowest possible torque, a metal-shielded version (6708-ZZ) is available as an alternative, though it offers less contaminant resistance.

"Where space is the constraint and reliability is the requirement, the 6708-2RS delivers precision performance in an ultra-compact form factor, ideal for medical, automation, and light industrial drives."