---
product_id: 378317199
title: "(2 Pack) 6203-2RS 6203DDU 6203VV Bearings 17X40X12MM Pressed Steel Cage,Deep Groove Ball Bearings"
brand: "nsk bearings"
price: "¥3839"
currency: JPY
in_stock: true
reviews_count: 8
category: "Nsk Bearings"
url: https://www.desertcart.jp/products/378317199-2-pack-6203-2rs-6203ddu-6203vv-bearings-17x40x12mm-pressed-steel
store_origin: JP
region: Japan
---

# Up to 25,000 rpm max speed 17x40x12mm precision size Double-sided shields for contamination defense (2 Pack) 6203-2RS 6203DDU 6203VV Bearings 17X40X12MM Pressed Steel Cage,Deep Groove Ball Bearings

**Brand:** nsk bearings
**Price:** ¥3839
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your ride with bearings that keep you ahead of the pack!

## Quick Answers

- **What is this?** (2 Pack) 6203-2RS 6203DDU 6203VV Bearings 17X40X12MM Pressed Steel Cage,Deep Groove Ball Bearings by nsk bearings
- **How much does it cost?** ¥3839 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/378317199-2-pack-6203-2rs-6203ddu-6203vv-bearings-17x40x12mm-pressed-steel)

## Best For

- nsk bearings enthusiasts

## Why This Product

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

## Key Features

- • **Smooth Operator:** Pressed steel cage ensures even ball spacing, minimizing friction, vibration, and noise for a whisper-quiet ride
- • **Speed Demon Ready:** Supports grease speeds up to 17,000 rpm and oil speeds up to 25,000 rpm—keep your gear spinning fast
- • **Shielded for Longevity:** Dual shields lock in lubricant and keep dirt out, extending bearing life and reducing maintenance
- • **Versatile Load Handling:** Deep groove design expertly manages both radial and axial loads—built for demanding applications
- • **Precision Engineered for Peak Performance:** Exact 17mm bore and 40mm outer diameter for seamless fit and reliability

## Overview

NSK 6203-2RS deep groove ball bearings, crafted with precision alloy steel and double-sided shields, deliver high-speed performance up to 25,000 rpm. Designed with a pressed steel cage for reduced friction and noise, these 17x40x12mm bearings expertly handle radial and axial loads, ensuring durability and smooth operation in demanding cycling and industrial applications.

## Description

SpecificationsClearance C0 (Normal)Bore Size d 17 mmFeatures ShieldsBearing Type Contact SealsWeight 0.070 KgDimensionsOutside Diameter D 40.000 mmOutside Ring Width B 12.000 mmRadius Rs min 0.600 mmBasic Load RatingsCrDynamic Load Rating 9.6 kNC0rStatic Load Rating 4.8 kNFactorsGrease Reference Speed 17000 rpmOil Reference Speed 25000 rpm

Review: Great Service - NSK , Awesome Bearings
Review: Great bearings - Used these to repair a shop fan blade shaft. Used them for about 2 months now and they work fine. Recommend to anyone.

## Features

- MADE IN POLAND
- Deep-groove geometry for high speeds and supporting both radial and axial loads
- Shields on both sides of the bearing to keep lubricant in and contaminants out
- Normal radial internal clearance for applications that do not involve thermal expansion or atypical precision
- Pressed steel cage evenly spaces the balls for even load distribution and prevents contact to reduce friction, vibrations, and noise

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095VYXY6S |
| Bearing Number | 6203 2RS |
| Bearing Type | Ball Bearing |
| Best Sellers Rank | #38,708 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #146 in Deep-Groove Ball Bearings |
| Brand | NSK BEARINGS |
| Compatible Lubricant | Oil |
| Date First Available | May 26, 2021 |
| Item Thickness | 12 Millimeters |
| Item Weight | 5.3 ounces |
| Item dimensions L x W x H | 5.51 x 3.94 x 0.67 inches |
| Item model number | 6203DDU 6203-2RS |
| Manufacturer | JAPAN NSK |
| Material | Alloy Steel |
| Outside Diameter | 40 Millimeters |
| Product Dimensions | 5.51 x 3.94 x 0.67 inches |
| Specification Met | ABEC 1 |

## Product Details

- **Bearing Number:** 6203 2RS
- **Brand:** NSK BEARINGS
- **Item Weight:** 150 Grams
- **Item dimensions L x W x H:** 5.51 x 3.94 x 0.67 inches
- **Material:** Alloy Steel

## Images

![(2 Pack) 6203-2RS 6203DDU 6203VV Bearings 17X40X12MM Pressed Steel Cage,Deep Groove Ball Bearings - Image 1](https://m.media-amazon.com/images/I/71YRyzq8WML.jpg)

## Questions & Answers

**Q: Will this replace the 6203v bearing**
A: The bearing we sell is 6203vv suitable

**Q: Do these have a 2d barcode to scan to check authenticity? Does anyone think these may be fake?**
A: Don’t know if there was a 2nd barcode nor do I have an opinion on authenticity. I do know they are working fine in my Polaris pump motor.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Service
*by R***H on January 5, 2026*

NSK , Awesome Bearings

### ⭐⭐⭐⭐⭐ Great bearings
*by G***. on June 18, 2025*

Used these to repair a shop fan blade shaft. Used them for about 2 months now and they work fine. Recommend to anyone.

### ⭐⭐⭐⭐⭐ Perfect Fit Pentair Pump/1.5HP Century 196233 motor
*by C***T on June 26, 2024*

Fit perfectly in my 2013 Pentair Superflow model 348024 pump with 1.5 HP Century motor part number 196233. Took several days of internet searching, phone calls to both Pentair & Century was given incorrect information that's why I am posting this level of detail hopefully this helps someone else. BTW - INYOPOOL.COM was the only company with the correct information as some motors even use 2 different bearings - the correct bearings for this model 196233 Century motor are a pair (one on front & one on the rear of motor shaft) bearing part is 6203-2RS - I purchased the NSK brand which included 2 (a pair) of these bearings for about half the price of anywhere else $16 for both. I also purchased a set of 4 different size bearing pullers on Amazon for about $34 - excellent price. A hint to install new bearings 99% of instructional YouTube videos tell u to "hammer" them onto shaft using a steel pipe and rubber mallet while holding motor shaft assembly in a table vise. THIS IS A GREAT WAY TO DAMAGE/DESTROY NEW BEARINGS. Either they will fail immediately or within a short period of time, if u manage to hit pipe perfectly on inner ring of bearings it may not get damaged. THE FAR EASIER & SAFER METHOD is simple - turn on your oven set @115°C or 239°F, put new bearings on a cookie sheet or any small ovenproof pan with low sides for easy removal. I preheated oven & let bearings heat for about 15 minutes. My pump was in the yard 75' from oven in kitchen. I cleaned motor shaft using strips of 150-200 grit Emery cloth for metal to remove any rust, pitting and dirt stains, cleaned off residue with damp paper towel. After 15 minutes in oven grabbed pan with bearings using a pair of oven mitts and picked up one bearing at a time, slipped onto shaft like "butter" waited 20 seconds turned over to other side slipped on second bearing. Almost as soon as bearing is seated at bottom of shaft (lip) it expands as it cools and is firmly in place waiting 20 seconds may be overkill as the shaft itself is at ambient temperature and contains a lot more mass than the bearing so it absorbs the heat & cools down bearings in seconds. Both bearings after slip on installation- NO HAMMERING - spun freely, no damage to bearings, bearing plastic covers & no leakage of packing grease. Easy, safe way to install.

## Frequently Bought Together

- Nsk Bearings (2 Pack) 6203-2RS 6203DDU 6203VV Bearings 17X40X12MM Pressed Steel Cage,Deep Groove Ball Bearings
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-06*