Affordable & Fast Delivery: Timken NTN NSK NACHI Koyo Taper Roller Bearings 355A/354A 3578/3525 3578/3526 3782/3720 - Factory Direct Prices for Auto Transmission Parts
Affordable & Fast Delivery: Timken NTN NSK NACHI Koyo Taper Roller Bearings 355A/354A 3578/3525 3578/3526 3782/3720 - Factory Direct Prices for Auto Transmission Parts - 图片 2
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Estimated delivery time: 3-5 days

Affordable & Fast Delivery: Timken NTN NSK NACHI Koyo Taper Roller Bearings 355A/354A 3578/3525 3578/3526 3782/3720 - Factory Direct Prices for Auto Transmission Parts

High-quality taper roller bearings from leading brands (Timken, NTN, NSK, NACHI, Koyo) designed for vehicle transmission systems. These precision-engineered bearings ensure smooth operation under heavy radial/axial loads and extended service life. Compatible with models: 355A/354A, 3578/3525, 3578/3526, 3782/3720.

  • Dimensions (3578/3525 example):
    • Inner Diameter: 44.45 mm [2]
    • Outer Diameter: 87.31 mm [2]
    • Thickness: 30.16 mm [2]
  • Load Capacity:
    • Dynamic (Cr): 96,000 N [2]
    • Static (C0r): 120,000 N [2]
  • Speed Limits:
    • Grease Lubrication: 4,300 RPM [2]
    • Oil Lubrication: 6,000 RPM [2]
  • Material: Bearing Steel [1]
  • Mounting: Cone/Cup assembly design

[1] 美国铁姆肯TIMKEN圆锥滚子3578-3520 355A-354A 3578-3525轴承
[2] 3578轴承_nsk轴承3578尺寸规格参数报价-nsk轴承型号查询

Detailed parameters

Table of Contents

1. Product Overview & Specifications Comparison

Key Models

Taper roller bearings 355A/354A, 3578/3525, 3578/3526, and 3782/3720 are engineered for heavy-duty vehicle transmission systems. Key brands include Timken, NTN, NSK, NACHI, and Koyo.

Model Inner Diameter (mm) Outer Diameter (mm) Dynamic Load (kN) Material
Timken 3578/3525 44.450 87.312 96 Chrome Steel
NSK 3578 44.450 87.312 98 High-Carbon Steel

Note: Specifications may vary by manufacturer. Cross-check with technical datasheets[1][2].

2. Detailed Applications

Primary Use in Vehicle Systems

These bearings are critical for:

  • Transmission gearboxes
  • Differential assemblies
  • Axle systems

Designed to handle radial and axial loads up to 120 kN[2].

3. Installation & Maintenance

Best Practices

  • Clean mounting surfaces thoroughly
  • Use hydraulic press for precise seating
  • Lubricate with ISO VG 68-grade grease

Improper installation reduces lifespan by 40%[5].

4. Industry Use Cases

Heavy-Duty Applications

  • Commercial truck transmissions (1M+ mile durability)
  • Construction equipment final drives
  • Agricultural machinery PTO systems

5. Client Success Stories

Automotive Manufacturer A

  • Challenge: Frequent bearing failures in 10-ton trucks
  • Solution: Upgraded to Timken 3782/3720 bearings
  • Result: 300% increase in service intervals

Mining Company B

  • Challenge: Contamination in drill rig transmissions
  • Solution: NSK 3578/3526 with triple-lip seals
  • Result: 60% reduction in downtime

6. Request a Quote

Contact our engineers for custom solutions:

Include your machine model and operating conditions for faster response.

[1] 美国铁姆肯TIMKEN圆锥滚子3578-3520 355A-354A 3578-3525轴承
[2] 3578轴承_nsk轴承3578尺寸规格参数报价-nsk轴承型号查询

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