Specifications :

drawings may differ from products	Boundary Dimensions	d	220	mm
		D	340	mm
		B	305	mm
		T	305	mm
	Basic Load Ratings	Cr	2800	kN
	Basic Load Ratings	C0r	5950	kN
	Speed Ratings	Grease	500	rpm
	Speed Ratings	Oil	630	rpm
	Weight		99.50	kg

Features :

Product Type:Four-Row Tapered Roller Bearing

Model No.:382044

1. Overview

The 382044 four-row tapered roller bearing is a high-performance component built for heavy-duty machinery. With its exceptional ability to handle heavy and impact loads, it is the ideal choice for critical equipment across various industries.

2. Basic Dimensions

Dimension Type	Value
Inner Diameter (d)	220mm
Outer Diameter (D)	340mm
Thickness (B)	305mm

3. Structural Features

Component Composition: 2x double-raceway inner rings, 1x double-raceway outer ring, 2x single-raceway outer rings.
Clearance Adjustment: Precision clearance set via inner/outer ring spacers.
Load-Bearing Advantage: Optimized to handle combined high radial + axial loads.

4. Load-Carrying Capacity

Radial Load Capacity: Its ability to carry radial loads is about 2.5-3.5 times that of single-row tapered roller bearings, complying with the high-precision load demands of industrial sectors.
Load Type Adaptability: Designed exclusively for combined radial and axial loads (with radial loads being the primary), it demonstrates excellent resistance to heavy and impact loads.

5. Performance Characteristics

Limiting Speed: Four-row tapered roller bearings experience higher operational friction due to their structural design, especially the sliding contact between the rib and roller end face. Consequently, their limiting speed is relatively lower than other bearings with comparable dimensions, like four-row cylindrical roller bearings.
Axial Load Capacity: Compared with single-row tapered roller bearings that can only support unidirectional axial loads, four-row tapered roller bearings are built to carry heavy bidirectional axial loads. This two-way load capacity delivers accurate axial positioning and effectively handles thrust generated during rolling. It is worth emphasizing that while providing strong bidirectional thrust capacity, it mainly bears heavy radial loads.

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

Primary Application: Specifically designed for work rolls and backup rolls of rolling mills, perfectly matching the high-precision and heavy-load requirements of European rolling mill equipment.
Other Applications: Widely applicable to heavy-duty mechanical equipment including cranes, mining machinery, and wind turbines, which demand excellent resistance to high loads and impact loads.

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Subject :Heavy-duty four-row tapered roller bearing for rolling mills 382044