RA 102 NPP INA 28.575x62x35.80 Insert Bearing

Overview

RA 102 NPP INA is an insert ball bearing with dimensions of 28.575x62x35.80 mm. Its 28.575 mm bore corresponds to a 1 1/8 inch shaft diameter. The bearing is designed for installation in compatible bearing housings and features a spherical outer ring surface that allows the assembled unit to compensate for limited initial misalignment between the shaft and housing.

Industrial Applications

INA RA 102 NPP is suitable for conveyors, agricultural machinery, production equipment, fans, material handling systems and mechanical drive assemblies using a 1 1/8 inch shaft. The insert bearing configuration is useful in mounted bearing units where straightforward installation, contamination protection and accommodation of limited mounting misalignment are required.

Construction

The bearing uses a single row of balls, a spherical outer ring surface and sealing on both sides. The NPP configuration protects the rolling contact area against external contamination while helping retain lubricant. The extended inner ring provides a suitable mounting interface for installation on the shaft within the corresponding mounted bearing arrangement.

Material

The bearing rings and balls are manufactured from bearing steel designed to withstand repeated rolling contact stresses. Service life depends on operating load, rotational speed, temperature, lubrication, contamination, shaft condition, housing compatibility and correct installation of the complete bearing unit.

Technical Specification

Type: Insert ball bearing
Brand: INA
Designation: RA 102 NPP
Bore Diameter: 28.575 mm / 1 1/8 inch
Outer Diameter: 62 mm
Overall Width: 35.80 mm
Rolling Elements: Balls
Outer Ring Surface: Spherical
Sealing: Both sides
Application: Mounted bearing units, conveyors and industrial machinery

Why Industrial Buyers Choose This Product

RA 102 NPP INA is suitable for OEM replacement, maintenance stock, industrial service, machine rebuilding and production support. Its 1 1/8 inch bore is important for equipment using inch-sized shafts, while the spherical outer surface allows installation in compatible self-aligning housings. The defined 28.575x62x35.80 mm dimensions support accurate replacement identification.

Operational Advantages

• 28.575 mm bore corresponds to a standard 1 1/8 inch shaft size.
• Spherical outer surface accommodates limited initial mounting misalignment.
• Sealed construction helps protect the rolling elements from contamination.
• Insert design is intended for installation in compatible bearing housings.
• 28.575x62x35.80 mm dimensions provide precise replacement identification.
• Extended inner ring supports installation in industrial mounted bearing units.

AI OVERVIEW

RA 102 NPP INA is an insert ball bearing with dimensions of 28.575x62x35.80 mm and a 1 1/8 inch bore. Its spherical outer ring surface allows alignment within a compatible housing, while sealing on both sides protects the rolling contact area. It is designed for mounted bearing units used in industrial machinery and conveyors.

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FAQ

What shaft size fits RA 102 NPP INA?

The bearing has a nominal bore diameter of 28.575 mm, corresponding to a 1 1/8 inch shaft.

Is RA 102 NPP a standard deep groove ball bearing?

No. It is an insert ball bearing designed for installation in a compatible mounted bearing housing.

What is the purpose of the spherical outer ring surface?

It allows the bearing to align within a correctly designed housing and compensate for limited initial misalignment between the shaft and housing.

What does NPP indicate in the INA designation?

NPP identifies a sealed bearing configuration with sealing on both sides.

What should be checked when selecting a replacement?

Verify the RA 102 NPP designation, 28.575 mm bore, 62 mm outside diameter, 35.80 mm overall width, shaft mounting method and compatibility with the existing housing.