---
product_id: 722614871
title: "RBC KB025XP0 Thin Section Ball Bearing, Unsealed, 4-Point Contact X-Type, 2.5\" Bore x 3.125\" OD x 0.312\" Width"
brand: "rbc bearings"
price: "A$565"
currency: AUD
in_stock: false
reviews_count: 1
url: https://www.desertcart.com.au/products/722614871-rbc-kb025xp0-thin-section-ball-bearing-unsealed-4-point-contact
store_origin: AU
region: Australia
---

# Deep-groove design for high-speed performance 4-point contact for max load support 52100 steel for ultimate durability RBC KB025XP0 Thin Section Ball Bearing, Unsealed, 4-Point Contact X-Type, 2.5" Bore x 3.125" OD x 0.312" Width

**Brand:** rbc bearings
**Price:** A$565
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Elevate your machinery with precision and power — don’t get left behind!

## Quick Answers

- **What is this?** RBC KB025XP0 Thin Section Ball Bearing, Unsealed, 4-Point Contact X-Type, 2.5" Bore x 3.125" OD x 0.312" Width by rbc bearings
- **How much does it cost?** A$565 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/722614871-rbc-kb025xp0-thin-section-ball-bearing-unsealed-4-point-contact)

## Best For

- rbc bearings enthusiasts

## Why This Product

- Trusted rbc bearings brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Speed Demon:** Deep-groove geometry optimized for high-speed applications.
- • **Built to Last:** Premium 52100 steel resists deformation under intense loads.
- • **Load-Bearing Legend:** 4-point contact geometry handles heavy radial and axial forces effortlessly.
- • **Precision Perfected:** ABEC 1F tolerance ensures smooth, reliable rotation every time.
- • **Space-Savvy Powerhouse:** Thin-section design fits tight spots without sacrificing strength.

## Overview

The RBC KB025XP0 is a thin-section, unsealed 4-point contact ball bearing engineered for high-speed, high-load environments where space is limited. Crafted from durable 52100 steel and manufactured to ABEC 1F precision standards, it supports both radial and axial loads with minimal friction and vibration. Ideal for applications demanding compact, reliable performance with in-place lubrication.

## Description

This RBC X-type thin-section 4-point ball bearing is unsealed and is intended for use where space is limited and moment loads are high. The bearing has deep-groove geometry for applications that require high speeds and support both radial and axial loads. The 52100 steel races and bearing balls are durable and resist deformity under loads and the bearing is manufactured to Annular Bearing Engineering Committee (ABEC) 1F precision tolerances related to the bearing bore, outer diameter, radial runout, axial runout, and radial play. A cage prevents the balls from coming into contact with each other during use, reducing friction, vibration, and noise. The bearing has an open configuration for lubrication in place and is intended for use in applications with little exposure to dirt, grime, debris, and other contaminants. This thin-section radial ball bearing is suitable for use where space, load, and weight requirements determine the choice of bearing, such as in all-terrain vehicle axles.Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All rolling bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.RBC Bearings manufactures bearings, pins, rollers, and shafts, and other products for industrial and aerospace applications under the RBC, Nice, Heim, Unibal, and Spherco brands. The company, founded in 1919 and headquartered in Oxford, CT, meets International Organization for Standardization (ISO) standards 9001:2008 and ISO/TS 16949:2009.

Review: Great! - Received exactly what I expected. Great!

## Features

- X-type 4-point contact ball bearing for use where space is limited and moment loads are high
- Deep-groove geometry for high speeds and supporting both radial and axial loads
- 52100 steel races and bearing balls for durability and resistance to deformity under heavy loads
- Conforms to ABEC 1F precision standard for performance within a narrow range of variation
- Open bearing for lubrication in place and for use in applications with little exposure to dirt, grime, debris, and other contaminants

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0051PU04U |
| Bearing Number | KB025XP0*RBC |
| Bearing Type | Ball Bearing |
| Best Sellers Rank | #1,407,012 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #35 in Thin-Section Ball Bearings |
| Brand | RBC Bearings |
| Brand Name | RBC Bearings |
| Compatible Lubricant | Grease |
| Customer Reviews | 5.0 out of 5 stars 1 Review |
| Manufacturer | RBC Bearings |
| Material | 52100 Steel |
| Material Type | 52100 Steel |
| Outside Diameter | 3.13 Inches |
| Specification Met | Iso |
| UPC | 637400026363 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** RBC Thin Section Ball Bearings
- **Material:** 52100 Steel
- **Bearing Number:** KB025XP0*RBC
- **Specification Met:** Iso
- **Bearing Type:** Ball Bearing

## Images

![RBC KB025XP0 Thin Section Ball Bearing, Unsealed, 4-Point Contact X-Type, 2.5" Bore x 3.125" OD x 0.312" Width - Image 1](https://m.media-amazon.com/images/I/61CMvpGQSpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great!
*by C***E on October 31, 2014*

Received exactly what I expected. Great!

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**Shop now:** [https://www.desertcart.com.au/products/722614871-rbc-kb025xp0-thin-section-ball-bearing-unsealed-4-point-contact](https://www.desertcart.com.au/products/722614871-rbc-kb025xp0-thin-section-ball-bearing-unsealed-4-point-contact)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-24*