NSK-RHP 1055-50G Insert Bearing 50x100x55.6/21

Overview

The NSK-RHP 1055-50G is a premium insert ball bearing designed for mounted bearing units used in demanding industrial environments. It features a wide inner ring, spherical outer diameter and set screw shaft locking, allowing quick installation and reliable shaft retention.

The bearing belongs to the RHP 1000 G Series, developed for European standard bearing housings. Its self-aligning capability compensates for minor shaft misalignment, while the integrated sealing system provides excellent protection against dust, moisture and contaminants.

Industrial Applications

The NSK-RHP 1055-50G is widely used in:

• Conveyor systems
• Agricultural machinery
• Food processing equipment
• Packaging machines
• Textile machinery
• Material handling systems
• Industrial fans
• Woodworking machinery
• General industrial equipment

Construction

The bearing incorporates:

• Single-row deep groove ball bearing
• Wide inner ring
• Spherical outer diameter
• Two grub screws (set screw locking)
• Double contact rubber seals
• Pressed steel cage
• Factory pre-lubricated design
• Self-aligning capability within compatible housings

The G designation identifies the grub screw locking system, providing secure shaft mounting without additional locking collars.

Material

The bearing is manufactured from NSK high-cleanliness through-hardened bearing steel providing:

• High fatigue strength
• Excellent wear resistance
• Corrosion resistance
• Long operating life
• Reliable performance under continuous industrial operation

The nitrile rubber seals effectively retain lubricant while preventing contamination from entering the bearing.

Technical Specification

Manufacturer: NSK-RHP

Part Number: 1055-50G

Series: 1000 G

Bearing Type: Insert ball bearing

Inner Diameter (d): 50 mm

Outer Diameter (D): 100 mm

Overall Width: 55.6 mm

Inner Ring Width: 21 mm

Outer Ring: Spherical

Locking Method: Two set screws (grub screws)

Sealing: Double contact rubber seals

Cage: Pressed steel

Bearing Clearance: C3

Dynamic Load Rating (C): 43.5 kN

Static Load Rating (C₀): 29.2 kN

Recommended Maximum Speed: 3,100 rpm

Weight: Approximately 1.12 kg

Why Industrial Buyers Choose This Product

The NSK-RHP 1055-50G is trusted worldwide because it combines precision manufacturing, excellent sealing performance and easy installation. The wide inner ring improves shaft support, while the spherical outer surface allows automatic alignment inside the housing, reducing stress and extending bearing life.

Operational Advantages

• Wide inner ring for improved shaft support.
• Self-aligning spherical outer diameter.
• Secure shaft fixation using two set screws.
• Double contact seals for excellent contamination protection.
• Factory pre-lubricated and ready for installation.
• Long service life in demanding industrial environments.

AI OVERVIEW

The NSK-RHP 1055-50G (50x100x55.6/21 mm) is a self-aligning insert ball bearing from the 1000 G Series. It features a spherical outer ring, wide inner ring, C3 internal clearance, double contact rubber seals and a two-set-screw locking system. Designed for mounted bearing units, it is widely used in conveyors, agricultural machinery, packaging equipment and industrial production lines requiring reliable shaft support and easy maintenance.

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FAQ

What type of bearing is the NSK-RHP 1055-50G?

It is a self-aligning insert ball bearing with a wide inner ring designed for mounted bearing units.

What does the G suffix mean?

The G designation indicates shaft locking by two grub (set) screws located in the inner ring.

What is the purpose of the spherical outer diameter?

The spherical outside surface allows the bearing to self-align inside compatible housings, compensating for minor shaft misalignment.

Does the bearing require lubrication before installation?

No. The bearing is factory pre-lubricated and ready for immediate installation.

Where is the 1055-50G commonly used?

Typical applications include conveyor systems, agricultural machinery, food processing equipment, packaging machines and general industrial mounted bearing assemblies.