d - 17 mm

D - 30 mm

B - 7 mm

C - 7 mm

rn - 0,3 mm

a - 1,3 mm

b - 0,95 mm

f - 0,85 mm

r min. - 0,3 mm

r0 max. - 0,25 mm

D1 - 28,7 mm

D2 - 32,8 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: 6903NR
• Inner Diameter：17mm Outer Diameter：30mm Width：7mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-14
• Application:sample cup,tube,walking Food processing machinery and equipment,Other machinery,Other Measurements,sheet industry,gear grinding machine,bathroom facilities,suction nozzle,hydraulic pump,agriculture
• Similar models:NACHI 6903N KOYO 6903 CYSD 6903-2RZ ISB F6903ZZ NSK 6903L11-H-20 NSK 6903 NTN 6903LLB NACHI 6903NSE KOYO 6903ZZ NACHI 6903NR
• BEARING POWER International Trading Co.,Ltd. specialize in 6903NR products，there is large inventory of NTN 6903NR . We has been built up long-term cooperation with NTN company, could make a bulk order of the 6903NR Which NTN 6903NR 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
  1652-Z	28,575	63,5	15,875	CYSD	Deep Groove Ball Bearings
  2313K	65	140	48	SKF	Self-Aligning Ball Bearings
  241/600B	600	980	375	NTN	Spherical Roller Bearings
  45BER10S	45	75	16	NSK	Angular Contact Ball Bearings
  62/22-2RD	22	50	14	KOYO	Deep Groove Ball Bearings
  71919 CB/HCP4A	130	95	18	SKF	Angular Contact Ball Bearings
  7906UG/GMP4	30	47	9	NTN	Angular Contact Ball Bearings
  ER1.20.1904.400-1SPPN	1796	2073,4	68	ISB	Thrust Roller Bearings
  NA210	50	90	49,2	KOYO	Deep Groove Ball Bearings
  NA4010 V	50	80	30	CX	Needle Roller Bearings
  NJ3084	420	620	150	CX	Cylindrical Roller Bearings
  NKIA 5912	60	85	34	CX	Complex Bearings
  UKFL316+H2316	70			NACHI	Bearing Units
  NN3040ASK.M.SP	200	310	82	FAG	CYLINDRICAL ROLLER BEARINGS
  DN-3075	.7500	2.0000	.6875	FBC	DEEP GROOVE BALL BEARINGS
  CFD-17/8	.7500	1.8750	1.0000	McGill	ROLLER CAM FOLLOWERS
  W6302	15	42	13	SKF	DEEP GROOVE BALL BEARINGS
  RNAF22x30x26	30		26	FAG (Old No.)	NEEDLE BEARINGS
  NU-2921E	105	145	24	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  H-3280x380	400	380		CONSOLIDATED	ADAPTERS