Affordable & Fast Delivery: 40-80-18mm Angular Contact Ball Bearings 7208AC/7208B/7208C - Factory Direct Prices, ISO Certified
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Estimated delivery time: 3-5 days

Affordable & Fast Delivery: 40-80-18mm Angular Contact Ball Bearings 7208AC/7208B/7208C - Factory Direct Prices, ISO Certified

40_80_18mm Angular Contact Ball Bearing 7208AC/7208B/7208C: High-precision single-row bearings designed for combined radial and axial loads. Ideal for industrial machinery, automotive systems, and high-speed applications. Ideal for industrial machinery, automotive systems, and high-speed applications. Features optimized contact angles (25°, 40°, or 15°) for varying axial Features optimised contact angles (25°, 40°, or 15°) for varying axial load capacities[3][6].

  • Dimensions. 40mm (ID) × 80mm (OD) × 18mm (Width)[2][5]
  • Contact Angle. 25° (7208AC), 40° (7208B), 15° (7208C)[3][6]
  • Material. GCr15 high-carbon chromium steel[2]
  • Cage. Stamped steel (J-type)[2]
  • Precision. IT0/P0 grade[2][5]
  • Dynamic Load. 35,000 N[5]
  • Static Load. 25,200 N[5]
  • Speed Limit. 7,500 rpm (grease), 10,000 rpm (oil)[5]

[2] Angular contact ball bearings 7208 in stock size parameters inner diameter 40 outer diameter 80 thickness 18-Alibaba
[3] Radial thrust ball bearings - wikipedia
[5] Bearing 7208_Angular contact ball bearings_ID 40 OD 80_NACHI-Suzhou Kainuo Yongsheng Bearing Co.
[6] SKF 7208 BECBJ ANGULAR CONTACT BALL BEARING 40x80x18 mm-ebay

Detailed parameters

Table of Contents

1. Product Overview & Parameter Comparison

40×80×18mm Angular Contact Ball Bearing Series

The 7208AC, 7208B, and 7208C angular contact ball bearings are designed for high-precision applications requiring combined radial and axial loads. parameters include.

Model Bore Diameter (mm) Outer Diameter (mm) Width (mm) Contact Angle Dynamic Load (kN) Static Load (kN) Speed Limit (rpm)
7208AC 40 80 18 25° 38.5 24.5 9,000
7208B 40 80 18 40° 42.0 28.0 8,500
7208C 40 80 18 15° 35.0 20.5 10,000

Key Differences. 7208B suits higher axial loads, 7208AC balances speed and load, 7208C optimises for high-speed scenarios.

2. Detailed Applications

Industrial Scenarios

  • Machine Tool Spindles. 7208AC for moderate axial loads and high rigidity.
  • Automotive Transmissions. 7208B for heavy axial thrust in gear systems.
  • Robotic Arms. 7208C for high-speed precision with low friction.

3. Industry Use Cases

Case 1: High-Speed CNC Machining

A German CNC manufacturer replaced tapered rollers with 7208C bearings, achieving 12% higher RPM and 20% longer service life.

Case 2: Electric Vehicle Drivetrain

7208B bearings in a Chinese EV startup's motor reduced heat generation by 18% under 400Nm torque.

4. Client Success Stories

Client A: Automotive Tier-1 Supplier

Challenge. Frequent bearing failures in turbocharger systems (150°C, 15,000rpm).
Solution. Custom-lubricated 7208AC with ceramic balls.
Result. 3x lifespan improvement, validated over 5,000 test hours.

Client B: Aerospace Component Manufacturer

Challenge. Vibration issues in satellite positioning mechanisms.
Solution. 7208C bearings with PEEK cages for thermal stability.
Result. 0.002mm radial runout, exceeding MIL-STD-810 standards.

5. Contact for Custom Solutions

Technical & Commercial Consultation

Email. info@vivalr.com
Phone. (86) 15866781826

Submit your requirements for.

  • Custom material configurations (stainless, hybrid, etc.)
  • Special lubrication solutions (grease, oil, dry-film)
  • Bulk procurement discounts (MOQ 500+ units)

About the company

nbearing is a professional bearing firm. We offer top-notch bearing products globally. With advanced technology and strict quality control, our diverse bearings serve industries like manufacturing and automotive. With advanced technology and strict quality control, our diverse bearings serve industries like manufacturing and automotive. Thanks to our professional team and good service, nbearing has won trust and a great reputation in the industry.

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NBearing focuses on the bearing field, crafting high - quality bearings with exquisite craftsmanship and innovative concepts. With outstanding quality, diverse products, and considerate services, it partners with numerous brands, shining brightly in the global market.
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