Specifications :

drawings may differ from products	Boundary Dimensions	d	205	mm
		D	320	mm
		B	205	mm
		T	205	mm
	Basic Load Ratings	Cr	1160	kN
	Basic Load Ratings	C0r	2850	kN
	Speed Ratings	Grease	620	rpm
	Speed Ratings	Oil	800	rpm
	Weight		55.40	kg

Features :

Product Type:Four-Row Tapered Roller Bearing

Model No.:380641

1. Overview

Specifically tailored for heavy-duty machinery, the 380641 four-row tapered roller bearing is a high-performance part. It showcases exceptional ability to withstand heavy and impact loads, rendering it an ideal selection for critical equipment in industrial fields.

2. Basic Dimensions

Dimension Type	Value
Inner Diameter (d)	205mm
Outer Diameter (D)	320mm
Thickness (B)	205mm

3. Structural Features

Component Composition: The bearing is furnished with two double-raceway inner rings, a single double-raceway outer ring, and two single-raceway outer rings.
Clearance Adjustment: The incorporation of spacers between the ring sets allows for precise control over internal clearance.
Load-Bearing Advantage: A key structural advantage is its ability to sustain substantial radial loads while also accommodating certain axial loads at the same time.

4. Load-Carrying Capacity

Radial Load Capacity: With a radial load-carrying capacity of roughly 2.5-3.5 times that of single-row tapered roller bearings, it conforms to the high-precision load requirements in industrial production.
Load Type Adaptability: Customized for combined radial and axial loads (with radial loads as the primary component), it exhibits excellent capacity to withstand heavy loads and impact loads.

5. Performance Characteristics

Limiting Speed: One trade-off for the bearing's increased load-carrying capacity is a relatively lower limiting speed, a consequence of its structural design when compared to four-row cylindrical roller bearings.
Axial Load Capacity: This functionality allows it to serve as a bidirectional thrust bearing, suitable for applications involving axial loads in either direction.

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: Optimized for rolling mill work/backup rolls. Ideal for high-precision, heavy-load European mill equipment.
Other Applications: Suited for various heavy-duty machinery requiring high load and impact resistance:

Cranes

Mining Machinery

Wind Turbines

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Subject :four-row tapered roller bearing 380641