Deep Groove 6203 Ball Bearings 17mm X 40mm X 12mm

6203 Ball Bearings

Model Numbers: B6203, 6203, B6203Z, 6203Z, B6203ZZ, 6203ZZ, B6203DDU, 6203DDU, 6203LLU, 6203-2NSE, 6203H2RS

Brands Carried: MISUMI, NSK, NTN, Nachi-Fujikoshi, EZO

Bearing Sizing: ID 17mm X OD 40mm X W 12mm, 17 mm Ball Bearing

Bearing Seals: Open, Single Shielded, Double Shielded, Rubber Sealed

For more 6203 ball bearings and seal options — we have hundreds visit MISUMI.



Select Part Numbers to Buy 6203 Ball Bearings


Bearing Seals MISUMI NSK NTN Nachi-Fujikoshi EZO (SPB-USA)
Open Type B6203 6203 6203 6203
Single Shielded B6203Z 6203Z 6203Z
Double Shielded B6203ZZ 6203ZZ 6203ZZ
Rubber Sealed B6203DDU 6203DDU 6203LLU 6203-2NSE 6203H2RS


Please select between the four options above:

Open Type:
Ball Bearings Open
B6203 Ball Bearing
6203 Ball Bearing
Single Shielded:
Ball Bearings Single Shielded
B6203Z Ball Bearing
6203Z Ball Bearing
Double Shielded:
Ball Bearings Double Shielded
B6203ZZ Ball Bearing
6203ZZ Ball Bearing
Rubber Sealed:
Ball Bearings Rubber Sealed
B6203DDU Ball Bearing
6203DDU Ball Bearing
6203LLU Ball Bearing
6203-2NSE Ball Bearing
6203H2RS Ball Bearing


Deep Groove Ball Bearings 6203 – 17X40X12mm Description

The 6203 is a 17 mm Ball Bearing that can be used in many rotary and factory automation applications. The 6203 Deep Groove Ball Bearings is an open style bearing. The 6203Z ball bearing is a single row raceway and single shielded. The 6203ZZ ball bearing has a single row raceway and it is shielded on each side. The B6203DDU, 6203DDU, 6203LLU, 6203-2NSE, 6203H2RS ball bearing are shielded by two rubber seals on each side. The 6203 17 mm Ball Bearing Inner Dimension 17mm X Outer Dimension 40mm X Width 12mm is an open style ball bearing designed for high rotational speeds and high dynamic loads.


6203 Ball Bearings 17X40X12mm Specifications & Dimensions


Universal 6203
Type Ball
Inner/Outer Ring Material Steel
Precision Grade 0
Inner Dimension d(Ø) 17
Outer Dimension D(Ø) 40
Width B (or T)(mm) 12
Retainer Type Punching
Load Direction Radial
Specifications/Environment Standard
Number of Raceway Ring Rows Single Track
Size Standards Metric Series
6203 Ball Bearings Dimensions


Deep Groove Ball Bearings 6203 – Technical Specifications/Dimensions


Open Ball Bearings


NSK 6203 OPEN PDF Link
NTN 6203 OPEN PDF Link
Nachi-Fujikoshi 6203 OPEN PDF Link

Single Shielded Ball Bearings


MISUMI B6203Z Single Shielded PDF Link
NSK 6203Z Single Shielded PDF Link
NTN 6203Z Single Shielded PDF Link


Double Shielded Ball Bearings


MISUMI B6203ZZ Double Shielded PDF Link
NSK 6203ZZ Double Shielded PDF Link
NTN 6203ZZ Double Shielded PDF Link

Rubber Sealed Ball Bearings


MISUMI B6203DDU Rubber Sealed PDF Link
NSK 6203DDU Rubber Sealed PDF Link
NTN 6203LLU Rubber Sealed PDF Link
Nachi-Fujikoshi 6203-2NSE Rubber Sealed PDF Link
EZO 6203H2RS Rubber Sealed PDF Link


Other Ball Bearing Series



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