Specifications :

drawings may differ from products	Boundary Dimensions	d	260	mm
		D	400	mm
		B	255	mm
		T	255	mm
	Basic Load Ratings	Cr	2620	kN
	Basic Load Ratings	C0r	5800	kN
	Speed Ratings	Grease	430	rpm
	Speed Ratings	Oil	530	rpm
	Weight		123.00	kg

Features :

Product Type:Four-Row Tapered Roller Bearing

Model No.: 381052X2

1. Overview

The 381052X2 is a high-performance bearing made for heavy-duty use. It stands out because it can handle very heavy and shocking loads, which is why it's a top pick for the most important machines in industry.

2. Basic Dimensions

Dimension Type	Value
Inner Diameter (d)	260mm
Outer Diameter (D)	400mm
Thickness (B)	255mm

3. Structural Features

Characterized by a build of two double-raceway inner rings, one double-raceway outer ring, and two single-raceway outer rings.
Characterized by the use of inter-ring spacers for precise clearance adjustment.
Characterized by a load-bearing structure optimized for simultaneous large radial and limited axial load capacity.

4. Load-Carrying Capacity

Radial Load Capacity: The bearing possesses a radial load-carrying capacity approximately 2.5-3.5 times that of single-row tapered roller bearings, thereby meeting the most stringent high-precision industrial requirements.
Load Type Adaptability: Its design specifically accommodates combined radial and axial loads, with radial loads being predominant, while concurrently demonstrating excellent resilience to heavy and high-impact loads.

5. Performance Characteristics

Limiting Speed: Lower speed limit vs. 4-row cylindrical bearings. Fully suitable for heavy-load use.
Axial Load Capacity: Bidirectional axial load capacity. Effective as a thrust bearing in harsh conditions.

6. Material & Manufacturing

Component	Material
Inner & Outer Rings	Carburized Steel
Rolling Elements	Bearing Steel
Cage	Stamped Steel Plate

Heat Treatment: Special heat treatment process applied to enhance hardness, wear resistance, and fatigue life.

7. Application Fields

Core Application: Work rolls and backup rolls for rolling mills.
Secondary Deployment: Heavy-duty machinery operating under demanding conditions, such as cranes, mining equipment, and wind turbines, where high load and impact resistance are essential.

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Subject :four-row tapered roller bearing 381052X2