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NTN Bearing 6203LU Single Row Deep Groove Radial Ball Bearing, Contact, Normal Clearance, Steel Cage, 17 mm Bore ID, 40 mm OD, 12 mm Width, Single Seal, Open One Side

4.0 4.0 out of 5 stars 57 ratings
$5.10 with 35 percent savings
Typical price: $7.90

This is determined using the 90-day median price paid by customers for the product on Amazon. We exclude prices paid by customers for the product during a limited time deal.
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Purchase options and add-ons

Brand NTN
Material Carbon Chrome Steel
Item Weight 1 Pounds
Bearing Number 6203.0
Bearing Type Ball Bearing

About this item

  • Deep groove geometry for high speeds
  • Single row for supporting radial loads
  • Steel cage evenly spaces balls for reduced friction, vibration and noise
  • Rubber seal on the side of the bearing exposed to contaminants and open on the other for applying lubricant
  • CN (normal) radial internal clearance for applications that do not involve thermal expansion or atypical precision
  • Open on One Side

Buy it with

NTN Bearing 6203LU Single Row Deep Groove Radial Ball Bearing, Contact, Normal Clearance, Steel Cage, 17 mm Bore ID, 40 mm OD
$5.10
Get it Feb 13 - 15
In Stock
Ships from and sold by Global Power.
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Product details

  • Package Dimensions ‏ : ‎ 1.9 x 1.9 x 0.7 inches; 1 Pounds
  • Item model number ‏ : ‎ NTN 6203LU
  • Date First Available ‏ : ‎ June 11, 2013
  • Manufacturer ‏ : ‎ NTN
  • ASIN ‏ : ‎ B010SDMO4S
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.0 4.0 out of 5 stars 57 ratings

Product Description

Single row radial ball bearings are the most widely used bearings and utilize an uninterrupted raceway, which makes these bearings suitable for radial loads, or a combination of thrust and radial loads. This design permits precision tolerances even at high speed operation. Shielded bearings are protected on one, or both sides (suffixes Z and ZZ, respectively) by metal shields fastened to the outer ring. This close clearance labyrinth seal retains the lubricant and prevents the entrance of foreign matter. Sealed bearings incorporate steel reinforced rubber seals securely fastened to a groove on the outer ring. Contact with the inner ring is by sealing lip (Contact Suffix LLU). Or, non-contact with the inner ring is by labyrinth seal (Non-contact Suffix LLB) to provide positive sealing at all times. TN is one of the three largest bearing companies in the world with more than ninety years of manufacturing expertise in ball bearings.

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    Customer reviews

    4 out of 5 stars
    4 out of 5
    57 global ratings

    Customers say

    Customers like the performance of the bearing, saying it works great and comes pretty fast. They do, however, have concerns about the seal, saying that it only has a seal on one side.

    AI-generated from the text of customer reviews

    4 customers mention4 positive0 negative

    Customers are satisfied with the performance of the bearing. They mention that it works great and comes pretty fast. They also say that it will last longer than them or their car.

    "Works great" Read more

    "...I took a seal from the original. Came pretty fast works well and probably will last longer than me or the car." Read more

    "worked good" Read more

    "Works fine..." Read more

    6 customers mention0 positive6 negative

    Customers are disappointed with the seal of the bearing. They mention that it has a seal on one side, and they need it to be sealed on both sides.

    "...on, it works just fine, but it gets 2 stars for not having that seal from the factory...." Read more

    "This bearing only has one seal on one side. The other side is open, no seal or shield. I have a bearing with this exact number on it that is a..." Read more

    "...The original was sealed on both sides and this one had only one seal. I could not tell that from picture on Amazon. I took a seal from the original...." Read more

    "I didn't like the fact it only had the seal on one side" Read more

    Top reviews from the United States

    cary t. johnson sr
    5.0 out of 5 stars NTN bearing for 96mm idler pulley
    Reviewed in the United States on December 30, 2023
    Verified Purchase
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    Jackson Johns
    5.0 out of 5 stars Works fine
    Reviewed in the United States on October 19, 2019
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    Romy
    2.0 out of 5 stars Only sealed on one side, wtf.
    Reviewed in the United States on July 11, 2021
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    Hillbilly1967
    5.0 out of 5 stars Nice price
    Reviewed in the United States on January 27, 2020
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    Jim, WA State
    1.0 out of 5 stars This bearing only has seal on one side!!!
    Reviewed in the United States on February 9, 2018
    Verified Purchase
    4 people found this helpful
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    Amazon Customer
    3.0 out of 5 stars NTN is a great Japanese bearing manufacturer
    Reviewed in the United States on October 18, 2016
    Verified Purchase
    2 people found this helpful
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    Wizzer
    4.0 out of 5 stars It does not have the seal on both sides
    Reviewed in the United States on January 31, 2019
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    Philip E Newman
    5.0 out of 5 stars good deal
    Reviewed in the United States on December 7, 2018
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    Top reviews from other countries

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    mugon4
    5.0 out of 5 stars 日本製でした。
    Reviewed in Japan on July 2, 2023
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