d - 17 mm

D - 30 mm

B - 7 mm

d₁ - - 21 mm

D₁ - - 26.8 mm

D₂ - - 27.8 mm

D₃ - 32.5 mm

C - 1.5 mm

r_1,2 - min. - 0.3 mm

d_a - min. - 19 mm

r_a - max. - 0.3 mm

Basic dynamic load rating - C - 4 kN

Basic static load rating - C₀ - 2.6 kN

Fatigue load limit - P_u - 0.108 kN

Reference speed - 50000 r/min

Limiting speed - 32000 r/min

Calculation factor - k_r - 0.025

Calculation factor - f₀ - 14.8

Mass bearing - 0.0175 kg

• Model Number:W 61903 R
• Inner Diameter：30mm Outer Diameter：17mm Width：7mm
• Type：Deep Groove Ball Bearings
• Update date：2026-01-01
• Application:Rolling mill,transportation equipment,EEG,Small air generators,Insect Count,Anesthetic Equipment,special broaching machine,vertical processing,Pump,air shower etc,scientific instruments
• Similar models:ZEN F61903 ISO 61903-2RS CX 61903ZZ CRAFT 61903-2RS ISB SS61903-ZZ ISB SS61903-2RS SKF W61903-2RS1 ISB 61903-RZ SKF 61903-2RS1 SKF W61903R-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in W61903R products，there is large inventory of SKF W 61903 R . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 61903 R Which SKF W61903R 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
  132WD	160	250	40	Timken	Deep Groove Ball Bearings
  32030JR	150	225	48	KOYO	Tapered Roller Bearings
  6209 N	45	85	19	ISB	Deep Groove Ball Bearings
  6234-2RS	170	310	52	CYSD	Deep Groove Ball Bearings
  697HZZ	7	17	5	AST	Deep Groove Ball Bearings
  89438	190	380		CX	Thrust Roller Bearings
  FTO7	6,35	21,438	9,525	INA	Thrust Ball Bearings
  K12×16×13	12	16		NTN	Needle Roller Bearings
  PK20X26X19.8	20,000	26,000		NTN	Needle Roller Bearings
  NJ2230E	150	270	73	NTN	Cylindrical Roller Bearings
  NUP209EM	45	85	19	NSK	Cylindrical Roller Bearings
  SE21302	1066,800	1168,400	50,800	NTN	Angular Contact Ball Bearings
  MW-3				INA	THRUST BALL BEARINGS
  SN310with1310	50	-	70	FAG	PILLOW BLOCKS
  SBB80	5.0000	7.7500	4.3750	IKO	SPHERICAL PLAIN BEARINGS
  XLS-11/2-RR	1.5000	2.6875	.5625	FED	DEEP GROOVE BALL BEARINGS
  460SD30	460	680	163	Torrington (Old No.)	SPHERICAL ROLLER BEARINGS
  204NN	47	20	14	NH	DEEP GROOVE BALL BEARINGS
  6092M	460	680	100	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  NK-85/35	105		35	CONSOLIDATED	NEEDLE BEARINGS