d - 17 mm

D - 30 mm

B - 7 mm

C - 7 mm

Angle (α) - 15 °

a - 6.7 mm

r min. - 0.3 mm

r1 min. - 0.15 mm

da min. - 19.5 mm

Da max. - 27.5 mm

ra max. - 0.3 mm

Weight - 0.016 Kg

(Grease) Lubrication Speed - 36000 r/min

(Oil) Lubrication Speed - 47000 r/min

Calculation factor (f0) - 14.9

• Model Number: 7903C
• Inner Diameter：17mm Outer Diameter：30mm Width：7mm
• Type：Angular Contact Ball Bearings
• Update date：2025-12-09
• Application:laser devices,electrostatic protection,stamping die and its equipment,Rolling mill gear box,Rolling mill,small appliances,centrifugal pump,injection molding machine,other accessories,car shock absorber,pump industry
• Similar models:NTN 5S-7903UADG/GNP42 NACHI 7903C NTN 7903UG/GMP4 NTN 7903UCG/GNP42 NTN 5S-7903UCG/GNP42 NTN 7903UADG/GNP42 NSK 7903A5 NTN 7903UG/GNP42/L606Q1 KOYO 7903C KOYO 7903CPA
• BEARING POWER International Trading Co.,Ltd. specialize in 7903C products，there is large inventory of KOYO 7903C . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 7903C Which KOYO 7903C 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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  1205K+H205	20	52	26	CRAFT	Self-Aligning Ball Bearings
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  5209ZZ	45	85	30.2	KOYO	Angular Contact Ball Bearings
  3811-B-2RSR-TVH	55	72	13	FAG	Angular Contact Ball Bearings
  5311 2RS	55	120	49,2	CYSD	Angular Contact Ball Bearings
  6019	145	95	24	SKF	Deep Groove Ball Bearings
  71824 C	120	150	16	ISO	Angular Contact Ball Bearings
  9124P	120	180	28	Timken	Deep Groove Ball Bearings
  AST11 3240	32	36		AST	Plain Bearings
  C4122K30V	110	180	69	SKF	Cylindrical Roller Bearings
  E33121J	105	175	56	NACHI	Tapered Roller Bearings
  HM516449/HM516410	82,55		39,688	KOYO	Tapered Roller Bearings
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  K60×66×20	60	66		NTN	Needle Roller Bearings
  LM12749/711	21,986	45,974	15,494	ISB	Tapered Roller Bearings
  NA49/28	28	45	17	Timken	Needle Roller Bearings
  TR100902	52,39	85	20	KOYO	Tapered Roller Bearings
  6316-Z	80	170	39	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  RA-106-104	1.2500	2.4409	.6299	CONSOLIDATED	BALL BEARINGS
  62807-2RS	35	47	8	CONSOLIDATED	DEEP GROOVE BALL BEARINGS