d - 17 mm

D - 30 mm

B - 7 mm

C - 7 mm

rn - 0,3 mm

a - 1,3 mm

b - 0,95 mm

r min. - 0,3 mm

r0 max. - 0,25 mm

D1 - 28,7 mm

da min. - 19 mm

da max - 20 mm

Da max. - 28 mm

ra max. - 0,3 mm

Dx - 33,5 mm

Cy - 1,9 mm

Cz - 0,9 mm

rn - 0,3 mm

Weight - 0,018 Kg

Basic dynamic load rating (C) - 4,65 kN

Basic static load rating (C0) - 2,58 kN

(Grease) Lubrication Speed - 22 000 r/min

(Oil) Lubrication Speed - 26 000 r/min

Calculation factor (f0) - 14,7

• Model Number: 6903N
• Inner Diameter：17mm Outer Diameter：30mm Width：7mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-14
• Application:sawing machine,set bacteria instrument,other lathe,organic raw materials,leather processing,metallurgy,scientific instruments,industrial skin care,Insect Capture,Medical room equipment,chemical
• Similar models:NACHI 6903ZENR ZEN P6903-GB NSK 6903ZZ NACHI 6903NKE KBC 6903ZZ NSK 6903 NSK 6903DDU CYSD 6903-ZZ NSK 6903L11-H-20ZZ NACHI 6903
• BEARING POWER International Trading Co.,Ltd. specialize in 6903N products，there is large inventory of NTN 6903N . We has been built up long-term cooperation with NTN company, could make a bulk order of the 6903N Which NTN 6903N 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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  23032EMW33	160,000	240,000	60,000	SNR	Thrust Roller Bearings
  2LA-HSE020ADG/GNP42	100	150	24	NTN	Angular Contact Ball Bearings
  51140M	200	250	37	SKF	Thrust Ball Bearings
  6004LLH	20	42	12	NTN	Deep Groove Ball Bearings
  6200	10	30	9	CX	Deep Groove Ball Bearings
  7218CDB	90	160	30	CYSD	Angular Contact Ball Bearings
  CX330				CX	Wheel Bearings
  EC41446H206	25	61,7	17,25	SNR	Tapered Roller Bearings
  K25X29X10	25,000	29,000		NTN	Needle Roller Bearings
  LJ 2.1/4	57,15	114,3	22,23	SIGMA	Deep Groove Ball Bearings
  NJ252 M	260	480	80	AST	Cylindrical Roller Bearings
  R1040	50,000	80,000	23,000	NTN	Cylindrical Roller Bearings
  RTW617	50,8	95,25	33,325	INA	Thrust Roller Bearings
  UCT202	15			NACHI	Bearing Units
  W6000	10	26	8	SKF	DEEP GROOVE BALL BEARINGS
  KM30			24	STEYR	LOCKNUTS
  SNW19x31/4	95	125		Torrington	ADAPTERS
  1222	110	200	38	SKF	SELF
  PA-15	1.8750	4.0000	.8125	RIV	DEEP GROOVE BALL BEARINGS
  RLS-26-LL	8.0000	13.0000	1.7500	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS