Specifications :

drawings may differ from products	Boundary Dimensions	d	150	mm
		D	225	mm
		T	112	mm
		B	45	mm
		C	88	mm
	Basic Load Ratings	Cr	1100	kN
	Basic Load Ratings	Cor	1690	kN
	Speed Ratings	Grease	1200	rpm
	Speed Ratings	Oil	1500	rpm
	Weight		14.1	kg

Features :

Product Type: Double-Row Tapered Roller Bearing

Model No.: 350630

1. Overview

Developed exclusively for heavy industry working conditions, double-row tapered roller bearings own solid structure, great rigidity and smooth rotational stability. With powerful comprehensive load capacity, they fit diverse complex load conditions and are essential support parts in metallurgical, mining and heavy mechanical equipment.

2. Basic Dimensions

Dimension Type	Value
Inner Diameter (d)	150mm
Outer Diameter (D)	225mm
Thickness (B)	45mm

3. Structural Features

Component Composition: This bearing comprises two sets of tapered rollers, double-row race inner ring, one-piece outer ring and high-stiffness precision cage, owning compact layout and high structural integration.
Clearance Adjustment: Featured with adjustable internal clearance design, it can realize precise preload and clearance adjustment to adapt to different working environments.
Load-Bearing Advantage: Optimized double-row symmetrical structure effectively enhances integral rigidity, capable of undertaking large radial loads and two-way axial loads with balanced internal force distribution.

4. Load-Carrying Capacity

Radial Load Capacity: Greatly enhanced radial load capacity in contrast to single-row tapered roller bearings, ideal for prolonged heavy-duty working applications.
Load Type Adaptability: Well designed for composite working loads where radial force takes priority and two-way axial force serves as supplement. It endures sustained heavy loads, alternating loads and mechanical shock loads reliably.

5. Performance Characteristics

Limiting Speed: Adopting scientific tapered roller contact structure and rational friction pairing, the bearing keeps smooth operation under medium-low speed and heavy-load states, with quiet running performance and low friction consumption.
Axial Load Capacity: While single-row types can only carry one-way axial force, double-row symmetrical structure is capable of enduring steady two-way axial thrust. It achieves accurate shaft axial positioning and effectively eliminates axial shift and operational vibration of machinery.
Operational Stability: Improved roller arrangement and precise raceway cooperation effectively lower running deflection and wear degree, ensuring durable and stable continuous service under severe industrial conditions.

6. Material & Manufacturing

Inner & Outer Rings: Manufactured from high-purity bearing steel, boasting high hardness and powerful resistance to deformation.

Rolling Elements: Accurately finished tapered rollers deliver balanced stress bearing and excellent abrasion resistance.

Cage: High-rigidity high-strength cage can efficiently stop roller offset and impact friction.

Heat Treatment: Integral quenching and tempering technology is applied to upgrade surface hardness, fatigue durability and service life, satisfying requirements for long-period industrial operation.

7. Application Fields

Primary Application: Commonly adopted to support roll necks, transmission parts and auxiliary bearing spots on steel rolling mills and metallurgical machinery.
Other Applications: Well-suited for all kinds of heavy-load mechanical devices with requirements for high stiffness and dual-direction load bearing, such as mining machines, construction equipment, heavy gear boxes and industrial drive systems.

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Subject :double-row tapered roller bearing 350630 for six-high cold mill