BRAND: NTN

ID: 30212 U P5 

Description:

 

 NTN 30212UP5 – Single Row Tapered Roller Bearing (Precision Class P5)

General Information

• Brand: NTN
• Item Number: 30212UP5
• Also Known As: 30212, 30212P5, 4T-30212UP5
• Category: Single Row Tapered Roller Bearing
• Country of Origin: Japan

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Dimensions & Weight

Parameter	Metric	Imperial
Inner Diameter (d)	60 mm	2.3622 in
Outer Diameter (D)	110 mm	4.3307 in
Width (B)	23.75 mm	0.9350 in
Weight	0.95 kg	—

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Product Properties

• Precision Class: P5 (Higher precision than P6, ISO Tolerance Class 5)
• Bearing Type: Single-row tapered roller bearing
• Construction: Cup (outer ring) and cone (inner ring + rollers + cage)
• Design: Open type (no seal)
• Load Type: Supports combined radial and axial loads in one direction
• Mounting Note: Typically mounted in mirror-image pairs — in X, O, or tandem arrangements for balanced axial load capacity

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Suffix Explanation

• U: Internationally interchangeable tapered roller bearing
• P5: Dimensional and running accuracy to ISO Tolerance Class 5

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Performance & Features

• High Precision: Improved dimensional and running accuracy (P5 class) ensures smoother rotation, reduced vibration, and longer service life.
• Tapered Design: Conical raceways allow efficient distribution of radial and axial loads.
• Ease of Assembly: Cup and cone can be easily mounted and separated for inspection or replacement.
• Material: High-quality bearing steel, through-hardened for superior strength and wear resistance.

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Applications

Commonly used in:

• Gearboxes and transmissions
• Machine tool spindles
• Automotive differentials and wheel hubs
• Heavy-duty industrial machinery