BEARINGDEX
Deep groove ball

6319 bearing

95 mm bore, 200 mm outside diameter, 45 mm width (3.7402 × 7.874 × 1.7717 in).

Dimensions

mminch
Bore d953.7402
Outside diameter D2007.8740
Width B451.7717

Quick numbers

Pitch diameter dm147.5 mm
Section height (D − d)/252.5 mm
n·dm at 1,800 rpm265,500
n·dm at 3,600 rpm531,000

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.
19Bore code 19 × 5 = 95 mm

How each brand writes it

Same bearing, every maker's notation
VersionSKFFAGNSKNTNKoyoNACHI
Open631963196319631963196319
Shields both sides6319-2Z6319-2ZR6319ZZ6319ZZ6319ZZ6319ZZE
Contact seals both sides6319-2RSH6319-2RSR6319DDU6319LLU6319-2RS6319-2NSE
Contact seals both sides, C36319-2RSH/C36319-2RSR-C36319DDUC36319LLUC36319-2RSC36319-2NSE C3 Verify
Non-contact seals both sides6319-2RSL6319-2BRS Verify6319VV6319LLB6319-2RU Verify6319-2NKE Verify
Shields both sides, C36319-2Z/C36319-2ZR-C36319ZZC36319ZZC36319ZZC36319ZZE C3 Verify

Same size, different bearing

These share the 95 × 200 × 45 mm envelope but carry load differently. They aren't drop-in swaps.