CE-603-ZZPE

CE-603-ZZPE is a high-precision full ceramic bearing featuring ZrO₂ (zirconia) rings and balls with a PTFE (polytetrafluoroethylene) cage. ZrO₂bearings utilize the high strength, corrosion resistance, and low friction properties of zirconia, making them ideal for harsh environments. They outperform steel bearings in wear resistance and can operate without lubrication. Commonly found in medical, aerospace, and high-speed applications, they ensure durability and precision under extreme conditions.

◆ Basic Dimensions and Weight

Model CE-603-ZZPE. Dimensions in mm, weight in kg.

Mounting dimensions: da min = 22 mm, Da max = 35 mm, ra max = 0.6 mm (estimated based on similar models).

Reference weight: approx. 0.055 kg (based on ZrO₂ceramic material and dimensions).

◆ Material and Design

● Rings & Balls–ZrO₂(Yttria-Stabilized Zirconia)–Sintered advanced ceramic with ≥94% ZrO₂+ Y₂O₃ stabilizer. Density ~6.0 g/cm³, Vickers hardness 1250–1350 HV10, flexural strength ≥1000 MPa. Thermal expansion coefficient 10.3×10⁻⁶/K (matches steel), dielectric strength >15 kV/mm, non-magnetic, non-conductive.

●Cage–PTFE (Polytetrafluoroethylene)–High-performance engineering plastic offering exceptional chemical inertness, a low friction coefficient, and a wide operating temperature range. PTFE cages excel in highly corrosive environments and provide extremely low friction resistance, making them ideal for special applications requiring high cleanliness and corrosion resistance.

●Shields–ZZ (Metal Shields, Both Sides)–Non-contact metal shields protect the bearing from contamination while allowing high-speed operation. The ZZ designation indicates shields on both sides, providing effective protection against particulate ingress while maintaining low running torque.

◆ Core Performance Advantages

● High Strength & Durability–ZrO₂ceramic offers exceptional mechanical strength and fracture toughness, ensuring long service life under demanding conditions.

● Corrosion & Chemical Resistance–Resists acids, alkalis, solvents, and seawater–ideal for chemically aggressive environments.

● Low Friction & Wear Resistance–Outperforms steel bearings in wear resistance, with a low friction coefficient (0.05–0.12) and no lubrication required. 

● Extreme Temperature Range–Operates from -200°C to +600°C (rings/balls). The PTFE cage provides good stability at high temperatures.

● High-Speed Capability–Lower density reduces centrifugal forces, enabling speeds up to 1.5× that of steel bearings.

● Electrical Insulation–Non-conductive and non-magnetic, preventing arcing damage in motors, generators, and electromagnetic-sensitive equipment.

● Maintenance-Free Operation–Operates without lubrication in vacuum, cleanroom, and high-temperature environments, reducing maintenance costs.

◆ Application Areas

● Medical Equipment–Surgical instruments, dental handpieces, CT scanners, centrifuges– biocompatible and lubrication-free.

● Aerospace–Actuators, gyroscopes, flight controls – lightweight, extreme temperature reliability.

● High-Speed Spindles–PCB drilling, small CNC, grinding spindles – high rotational speeds and precision.

● Semiconductor & Cleanroom–Vacuum robots, wafer handling–particle-free, non-magnetic, non-conductive.

● Chemical & Food Processing–Pumps, agitators, mixers–corrosion-resistant, tolerant to caustic washdown.

● Laboratory Instruments–Centrifuges, precision measurement equipment–high accuracy and chemical resistance.

◆ Technical Data