GQZ 7206CD/HC Hybrid Ceramic Single Row Angular Contact Ball Bearing 30×62×16mm 15° Contact Angle Open Type

7206CD/HC follows standard super precision angular contact bearing specification.

• CD: 15° contact angle, high-capacity D internal geometry, universal design for DB/DF/DT matched assembly
• HC: Hybrid construction, GCr15 steel inner & outer rings + silicon nitride ceramic rolling elements with electric insulation capability

Open structure supports circulating oil lubrication. It bears combined radial load and one-way axial load. Single unit can be arranged back-to-back (DB), face-to-face (DF) or tandem (DT) to withstand bidirectional axial loads. Ceramic balls reduce centrifugal force at high rotation speed, restrain electric erosion and lower operating temperature. Widely adopted on high-speed CNC spindles, frequency conversion servo motors, ball screw supports and high-precision rotary equipment vulnerable to stray current damage.

Formal quotation will be sent within 24 hours upon your inquiry.

Model: 7206CD/HC

Dimensions: d30 mm, D62 mm, B16 mm

Min chamfer r:1 mm

Net weight: approx 0.195 kg

Structure: Single row angular contact ball bearing

Contact angle:15°

Material: Inner/outer ring: GCr15 bearing steel; rolling element: Si₃N₄ ceramic balls; machined phenolic resin cage

Structure form: Open type without seals

Basic dynamic load Cr:24200 N

Basic static load C0r:16000 N

Limiting speed (oil lubrication):45000 rpm

Complete dimension drawings and load data available on request.

1. HC hybrid ceramic rolling elements achieve insulation performance, effectively avoid bearing electric pitting corrosion
2. 15° CD high-capacity structure balances high-speed performance and load carrying capacity
3. Universal matchable design, flexible for various duplex paired installation modes on site
4. Low-density ceramic balls cut centrifugal load, realize higher limiting speed than all-steel bearings
5. Open design adapts continuous circulating oil lubrication for long-term high-speed precision operation
6. Customizable: P4/P5 precision grade, multiple preload classes, OEM laser marking, dedicated high-speed grease

• High-speed vertical & horizontal machining center main spindles
• Variable frequency servo motors and generator rotary shafts
• Precision ball screw fixed-end support assemblies
• High-speed grinding machinery and automation precision transmission units
• Rotary equipment exposed to stray electric current and electric corrosion risk

25 years professional bearing manufacturer, products exported globally.

Strict inspection on ceramic ball roundness and surface quality.

Ultra-precision raceway superfinishing to meet high precision requirements.

24-hour technical support for pairing layout and preload selection.

Ample stock for machinery distributors.

Precise dimensions and stable service performance.

GCr15 ring quenching & tempering hardness inspection

Silicon nitride ceramic ball dimension sorting and surface defect detection

Precision superfinishing for raceway surfaces

Contact angle, internal clearance and rotational vibration testing

If you need 7206CD/HC hybrid ceramic angular contact bearings:

Send inquiry to obtain below supports:

• Quick quotation within 24 hours
• DB/DF matched set solution consultation
• Optional precision grade and preload selection
• Competitive factory direct price
  Contact our sales team for full datasheets and formal offer.