d - 17 mm

D - 30 mm

B - 7 mm

C - 7 mm

r min. - 0,3 mm

da min. - 19 mm

Da max. - 28 mm

ra max. - 0,3 mm

Weight - 0,018 Kg

Basic dynamic load rating (C) - 4,6 kN

Basic static load rating (C0) - 2,55 kN

(Grease) Lubrication Speed - 23000 r/min

(Oil) Lubrication Speed - 28000 r/min

Calculation factor (f0) - 14,7

• Model Number:6903
• Inner Diameter：17mm Outer Diameter：30mm Width：7mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-16
• Application:Wire grinder,bio-chemical,tobacco machinery,meat products machine,walking Food processing machinery and equipment,metering pump,,insect experimental analysis instrument,Processing machinery,tube,medical equipment
• Similar models:CYSD 6903-RZ NSK 6903L11-H-20DDU NTN 6903NR NSK 6903NR ZEN P6903-SB NSK 6903ZZ NTN 6903LLU ISB F6903ZZ NACHI 6903ZENR KBC 6903DD
• BEARING POWER International Trading Co.,Ltd. specialize in 6903 products，there is large inventory of KOYO 6903 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 6903 Which KOYO 6903 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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  130070/130127G	70	127	71	Gamet	Tapered Roller Bearings
  22226 EK	230	130	64	SKF	Spherical Roller Bearings
  23220-K-MB-W33	100	180	60,3	NKE	Spherical Roller Bearings
  24156-2CS2K30/VT143	460	280	180	SKF	Spherical Roller Bearings
  5306	30	72	30,2	FBJ	Angular Contact Ball Bearings
  6220ZZ	100	180	34	FBJ	Deep Groove Ball Bearings
  ARX30X58X20	30,000	58,000	20,000	NTN	Needle Roller Bearings
  AY20-NPPB	20	47	25	NKE	Deep Groove Ball Bearings
  F18018	25	62,02	17,5	Fersa	Deep Groove Ball Bearings
  FC40096S04	45,3	80	48	SNR	Tapered Roller Bearings
  FNT-75100	75	100	4	KOYO	Needle Roller Bearings
  MJ-361	4.763	8.733	9.53	KOYO	Needle Roller Bearings
  TFC40118.P	30	117	62,9	SNR	Angular Contact Ball Bearings
  T4EB 240/VE174	320	240	42	SKF	Tapered Roller Bearings
  30303A	17	47	14	FAG	TAPERED ROLLER BEARINGS
  SBB96	6.0000	8.7500	4.7500	IKO	SPHERICAL PLAIN BEARINGS
  NKIS20	20	42	20	INA	NEEDLE BEARINGS
  51207				CONSOLIDATED	THRUST BALL BEARINGS
  88504NR	20	47	.5511	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  231SM220	220	400	128	CONSOLIDATED	SPLIT SPHERICAL ROLLER BEARINGS