BEARINGDEX
Deep groove ball, thin section

16003 bearing

17 mm bore, 35 mm outside diameter, 8 mm width (0.6693 × 1.378 × 0.315 in).

Cross-reference 16003Decode a full part number

Dimensions

mminch
Bore d170.6693
Outside diameter D351.3780
Width B80.3150

Quick numbers

Pitch diameter dm26.0 mm
Section height (D − d)/29.0 mm
n·dm at 1,800 rpm46,800
n·dm at 3,600 rpm93,600

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

What the number means

160Extra-thin deep groove ball series
03Bore code 03 is a fixed code for 17 mm

How each brand writes it

Same bearing, every maker's notation
VersionSKFFAGNSKNTNKoyoNACHI
Open160031600316003160031600316003
Shields both sides16003-2Z16003-2ZR16003ZZ16003ZZ16003ZZ16003ZZE
Contact seals both sides16003-2RSH16003-2RSR16003DDU16003LLU16003-2RS16003-2NSE
Contact seals both sides, C316003-2RSH/C316003-2RSR-C316003DDUC316003LLUC316003-2RSC316003-2NSE C3 Verify
Non-contact seals both sides16003-2RSL16003-2BRS Verify16003VV16003LLB16003-2RU Verify16003-2NKE Verify
Shields both sides, C316003-2Z/C316003-2ZR-C316003ZZC316003ZZC316003ZZC316003ZZE C3 Verify