SKF 358X/354 X/Q Tapered Roller Bearing 45x85x20.638 mm

SKF 358X/354 X/Q Tapered Roller Bearing 45x85x20.638 mm

The SKF 358X/354 X/Q is a high-performance, single-row tapered roller bearing designed to manage high radial and axial loads. The optimized X/Q geometry enhances internal contact and load distribution, resulting in superior durability and reliability—essential for heavy-duty industrial, automotive, and mechanical applications.

Technical Specifications

• Bore (d): 45 mm

• Outer Diameter (D): 85 mm

• Width (T): 20.638 mm (≈ 20.64 mm)

• Bearing Type: Single-row tapered roller

• Cage: Sheet steel

• Material: Hardened bearing steel

• Tolerance Class: P0/PN2 (ABEC 1)

• Dynamic Load Rating (C): 70.4 kN

• Static Load Rating (C₀): 81.5 kN

• Reference Speed: 6,000 RPM

• Limiting Speed: 6,700-8,500 RPM range

• Temperature Range: -30 °C to +120 °C

• Weight: ≈ 0.50 kg

Applications

Ideal for:

• Heavy-duty industrial machinery

• Automotive drive systems and axles

• Agricultural and construction equipment

• Shafts and gearboxes in manufacturing

• Any context requiring high-load, reliable performance

Key Benefits

• Optimized X/Q Geometry: Ensures even load distribution and reduced contact stress

• High Load Capacity: Designed to handle heavy radial and axial forces

• Precision Tolerance (P0/PN2): Reduced internal clearance and vibration

• Robust Steel Cage: Provides structural strength and durability

• Wide Operating Range: Functions reliably across varied temperatures and speeds

Assembly Guidelines

• Use reversed mounting pairs for optimal performance

• Recommended lubrication: quality industrial grease or ATF

• Regular checks advised for shafts, seal integrity, and smooth operation

• Replace if signs of wear, excessive heat, or noise occur

Warehouse & Delivery Info

📍 Warehouse & Store: Smoluchowskiego 1, Building 4, Lublin, Poland
🚚 24h Delivery - Fast nationwide and international shipping

FAQ - Frequently Asked Questions

Q1: What does “X/Q” indicate?
It represents optimized internal geometry (X) and improved surface precision (Q) for better load performance and longer life.

Q2: Can this bearing handle dynamic loads?
Yes—its design supports radial and axial dynamic loads based on specified ratings.

Q3: What speed range is supported?
Recommended up to around 6,000 RPM; absolute maximum near 8,500 RPM depending on lubrication and conditions.

Q4: Is it suitable for paired installations?
Yes, single row bearings like this are often used in X or O configurations with a matching counterpart.

Q5: Are other SKF variants available?
Yes—simmering.pl offers a variety of SKF tapered roller bearings in multiple sizes and precision classes.