E=Increased Load Capacity. M=Machined Brass Cage, Located On The Rolling Elements. C3=Internal Clearance Larger Than Normal. U303=The Code U303 In The Article Number Of An NSK Bearing Shows That It Was Specially Developed And Produced For Use In Wind
Inner (d) Inch
Outer (D) Inch
Width (B) Inch
Description from Medias
Manufacturer Part Number (MPN)
QJ338EM C3 U303
Bore
Seal
No Seal
Cage Type
MA - Brass Cage, Centered on Outer Ring
External Modification
No External Modification
Radial Internal Play
C3 Internal Play (Higher than Cn)
Precision
Standard Precision
Heat Stabilization
Special Treatment
No Heat Stabilization - Temperatures up to 120°C
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Name : Amit Patel
From : India
Time : 2026/1/29 Review:★★★★★
We use this supplier when local stock cannot meet our customer demand.Quotation is quick and accurate.
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Name : Thomas Schneider
From : CA
Time : 2026/1/28 Review:★★★★★
Fast reply and correct bearing models.
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Name : Peter van Dijk
From : Netherlands
Time : 2026/1/25 Review:★★★★★
Wide range of bearing models, including many obsolete references.
This makes a real difference when supporting industrial clients with older equipment.
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Name : Rafael Oliveira
From : Brazil
Time : 2026/1/24 Review:★★★★★
Local distributors were not interested in our small orders.
Here we received fast feedback, confirmed stock, and short lead time.
Our customers were satisfied with the delivery.