71805AC Chrome Steel Thin Wall 25° Angular Contact Ball Bearing 25×42×9mm for Compact Precision Spindle Machinery

The 71805AC thin wall angular contact ball bearing adopts ultra-thin wall structure with 25° contact angle, bears combined radial and axial loads, features lightweight, low vibration and high precision, ideal for compact limited-space spindle and precision automation equipment.

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Model

71805AC

Inner Diameter (ID)

25 mm

Outer Diameter (OD)

42 mm

Width

9 mm

Contact Angle

25°

Structure

Single row thin wall angular contact ball bearing

Material

High carbon chrome steel

Gear Type (if any)

N/A

👉 Full technical data and drawings available upon request

• Ultra thin wall design saves installation space for compact equipment
• 25° contact angle offers strong axial bearing rigidity and stable rotation
• Precision grinding ensures low noise, low vibration medium-high speed running
• High hardness raceway and balls reduce wear for long continuous service life
• Custom P5/P4 precision grade, brass/steel cage and special high-speed grease

👉 Helps reduce maintenance cost and improve machine performance

This bearing is widely used in:

• Compact CNC small spindles and miniature machining centers
• Precision testing instruments and optical rotary equipment
• Light automation robot joints and thin transmission assemblies
• Textile high-speed spindles and miniature grinding machinery

👉 Ideal for customers looking for reliable and long‑life bearing solutions

• 25+ years experience in industrial bearing manufacturing
• Exported to 50+ countries worldwide
• Rich experience in OEM & custom projects
• Strict quality inspection before shipment
• Fast response within 24 hours
• Stable supply for long‑term cooperation

👉 We focus on quality, reliability, and long‑term partnership

• Raw material inspection
• Precision machining process
• Heat treatment control
• Clearance & rotation testing
• Final inspection before delivery

👉 Ensuring consistent performance for every bearing

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• Fast quotation within 24 hours
• Technical support from engineers
• Custom solution suggestions
• Competitive factory price

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