BEARINGDEX
Deep groove ball

6011 bearing

55 mm bore, 90 mm outside diameter, 18 mm width (2.1654 × 3.5433 × 0.7087 in).

Dimensions

mminch
Bore d552.1654
Outside diameter D903.5433
Width B180.7087

Quick numbers

Pitch diameter dm72.5 mm
Section height (D − d)/217.5 mm
n·dm at 1,800 rpm130,500
n·dm at 3,600 rpm261,000

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

What the number means

6Deep groove ball
0Diameter series 0: extra light. Width series 0 is implied and left off.
11Bore code 11 × 5 = 55 mm

How each brand writes it

Same bearing, every maker's notation
VersionSKFFAGNSKNTNKoyoNACHI
Open601160116011601160116011
Shields both sides6011-2Z6011-2ZR6011ZZ6011ZZ6011ZZ6011ZZE
Contact seals both sides6011-2RSH6011-2RSR6011DDU6011LLU6011-2RS6011-2NSE
Contact seals both sides, C36011-2RSH/C36011-2RSR-C36011DDUC36011LLUC36011-2RSC36011-2NSE C3 Verify
Non-contact seals both sides6011-2RSL6011-2BRS Verify6011VV6011LLB6011-2RU Verify6011-2NKE Verify
Shields both sides, C36011-2Z/C36011-2ZR-C36011ZZC36011ZZC36011ZZC36011ZZE C3 Verify