Catalogue-Stainless Steel Bearings-Deep Groove Ball Bearings-04
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CXE S68 Series Ultra-Thin Stainless Steel Bearings
Extreme space-saving design with 5-20mm width for high-density applications
S68 Series Ultra-Slim Deep Groove Ball Bearings
CXE Bearing's S68 series stainless steel bearings feature an exceptionally thin cross-section (35-50% thinner than standard bearings) while maintaining impressive load capacity. These high-speed bearings are engineered for applications where space is at a premium.
Key Advantages of Ultra-Thin Design
The S68 series bearings deliver unique benefits:
- Extreme space savings: Just 5-20mm width across sizes
- High-speed operation: Up to 43,000 RPM (oil lubricated)
- Weight reduction: Up to 60% lighter than standard bearings
- Corrosion resistant: 420/440 stainless steel construction
Product Specifications
| Type | d (mm) | D (mm) | B (mm) | Cr (KN) | Cor (KN) | rpm (Grease) | rpm (Oil) | Weight (Kg) |
|---|---|---|---|---|---|---|---|---|
| S686 ZZ/2RS | 6 | 13 | 5 | 1.08 | 0.42 | 34000 | 43000 | 0.0021 |
| S687 ZZ/2RS | 7 | 14 | 5 | 1.18 | 0.50 | 32000 | 40000 | 0.0024 |
| S688 ZZ/2RS | 8 | 16 | 5 | 1.32 | 0.65 | 30000 | 38000 | 0.0040 |
| S689 ZZ/2RS | 9 | 17 | 5 | 1.60 | 0.72 | 28000 | 36000 | 0.0042 |
| S6800 ZZ/2RS | 10 | 19 | 5 | 1.80 | 0.93 | 28000 | 36000 | 0.0053 |
| S6801 ZZ/2RS | 12 | 21 | 5 | 1.90 | 1.00 | 24000 | 32000 | 0.0060 |
| S6802 ZZ/2RS | 15 | 24 | 5 | 2.10 | 1.30 | 22000 | 30000 | 0.0070 |
| S6803 ZZ/2RS | 17 | 26 | 5 | 2.20 | 1.50 | 20000 | 28000 | 0.0080 |
| S6804 ZZ/2RS | 20 | 32 | 7 | 3.50 | 2.20 | 18000 | 24000 | 0.0180 |
| S6805 ZZ/2RS | 25 | 37 | 7 | 4.30 | 2.90 | 16000 | 20000 | 0.0220 |
| S6806 ZZ/2RS | 30 | 42 | 7 | 4.55 | 3.40 | 15000 | 18000 | 0.0260 |
| S6807 ZZ/2RS | 35 | 47 | 7 | 4.75 | 3.85 | 13000 | 17000 | 0.0300 |
| S6808 ZZ/2RS | 40 | 52 | 7 | 4.95 | 4.20 | 12000 | 14000 | 0.0330 |
| S6809 ZZ/2RS | 45 | 58 | 7 | 6.40 | 5.60 | 9000 | 12000 | 0.0410 |
| S6810 ZZ/2RS | 50 | 65 | 7 | 6.60 | 6.10 | 8500 | 10000 | 0.0430 |
| S6811 ZZ/2RS | 55 | 72 | 9 | 9.10 | 8.40 | 8000 | 9500 | 0.0700 |
| S6812 ZZ/2RS | 60 | 78 | 10 | 9.10 | 8.70 | 7000 | 8500 | 0.0930 |
| S6813 ZZ/2RS | 65 | 85 | 10 | 11.90 | 11.50 | 6700 | 8000 | 0.1300 |
| S6814 ZZ/2RS | 70 | 90 | 10 | 12.10 | 11.90 | 6300 | 7500 | 0.1380 |
| S6815 ZZ/2RS | 75 | 95 | 10 | 12.50 | 12.80 | 6000 | 7000 | 0.1470 |
| S6816 2RS | 80 | 100 | 10 | 12.70 | 13.30 | 5600 | 6700 | 0.1550 |
| S6817 2RS | 85 | 110 | 13 | 19.20 | 19.80 | 5000 | 6300 | 0.2450 |
| S6818 2RS | 90 | 115 | 13 | 19.50 | 20.50 | 4800 | 6000 | 0.2580 |
| S6819 2RS | 95 | 120 | 13 | 19.80 | 21.30 | 4500 | 5600 | 0.2700 |
| S6820 2RS | 100 | 125 | 13 | 20.10 | 22.00 | 4300 | 5300 | 0.2800 |
| S6821 2RS | 105 | 130 | 13 | 20.30 | 22.70 | 4000 | 5000 | 0.3000 |
| S6822 2RS | 110 | 140 | 16 | 28.10 | 30.70 | 3800 | 5000 | 0.5000 |
| S6824 2RS | 120 | 150 | 16 | 28.90 | 32.90 | 3400 | 4300 | 0.5400 |
| S6826 2RS | 130 | 165 | 18 | 37.90 | 42.90 | 3200 | 4000 | 0.7360 |
| S6828 2RS | 140 | 175 | 18 | 38.20 | 44.30 | 3000 | 3800 | 0.7840 |
| S6830 2RS | 150 | 190 | 20 | 49.10 | 57.10 | 2800 | 3400 | 1.1400 |
| S6832 2RS | 160 | 200 | 20 | 49.60 | 59.10 | 2600 | 3200 | 1.1760 |
Design Features
- Ultra-thin profile: 5-20mm width enables compact designs
- High-speed capability: Up to 43,000 RPM with oil lubrication
- Premium materials: 420/440 stainless steel for corrosion resistance
- Sealed options: ZZ (metal shields) or 2RS (rubber seals) available
- Precision engineering: ABEC-1 standard (higher grades optional)
- Weight optimized: Up to 60% lighter than standard bearings
- Smooth operation: Precision-ground raceways reduce vibration
- Wide temperature range: -30°C to +120°C operation
- Low friction: Optimized ball complement and groove geometry
- Long service life: Advanced heat treatment process
Typical Applications
The S68 series ultra-thin bearings from CXE Bearing excel in space-constrained applications including:
- Micro-motors: Small DC motors, stepper motors
- Medical devices: Surgical tools, dental handpieces
- Aerospace: Avionics, control surface mechanisms
- Robotics: Compact joints, actuator assemblies
- Optical equipment: Lens positioning systems
- Semiconductor: Wafer handling, precision stages
- Instrumentation: Gauges, measuring devices
Technical Specifications
- Materials: 420/440 stainless steel rings and balls
- Cages: Stainless steel or engineered polymers
- Precision: ABEC-1 (P0) standard, higher grades available
- Clearance: C3 standard (other options on request)
- Lubrication: Grease-filled in sealed versions
- Seal types: ZZ (non-contact), 2RS (contact rubber seals)
Installation Guidelines
- Handle with care - thin sections are more susceptible to damage
- Ensure proper shaft and housing tolerances (recommended g6/H7)
- Use appropriate installation tools to avoid bearing distortion
- Verify adequate clearance in compact designs
- For high-speed applications, consider oil lubrication