BEARINGDEX
Deep groove ball

6302 bearing

15 mm bore, 42 mm outside diameter, 13 mm width (0.5906 × 1.6535 × 0.5118 in).

Dimensions

mminch
Bore d150.5906
Outside diameter D421.6535
Width B130.5118

Quick numbers

Pitch diameter dm28.5 mm
Section height (D − d)/213.5 mm
n·dm at 1,800 rpm51,300
n·dm at 3,600 rpm102,600

Compare against the maker's limiting speed. Speed calculator · L10 life

What the number means

6Deep groove ball
3Diameter series 3: medium. Width series 0 is implied and left off.
02Bore code 02 is a fixed code for 15 mm

How each brand writes it

Same bearing, every maker's notation
VersionSKFFAGNSKNTNKoyoNACHI
Open630263026302630263026302
Shields both sides6302-2Z6302-2ZR6302ZZ6302ZZ6302ZZ6302ZZE
Contact seals both sides6302-2RSH6302-2RSR6302DDU6302LLU6302-2RS6302-2NSE
Contact seals both sides, C36302-2RSH/C36302-2RSR-C36302DDUC36302LLUC36302-2RSC36302-2NSE C3 Verify
Non-contact seals both sides6302-2RSL6302-2BRS Verify6302VV6302LLB6302-2RU Verify6302-2NKE Verify
Shields both sides, C36302-2Z/C36302-2ZR-C36302ZZC36302ZZC36302ZZC36302ZZE C3 Verify

Same size, different bearing

These share the 15 × 42 × 13 mm envelope but carry load differently. They aren't drop-in swaps.