d - 17 mm

D - 30 mm

B - 7 mm

d₁ - - 21 mm

D₂ - - 27.8 mm

r_1,2 - min. - 0.3 mm

D_a - max. - 28 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 - 24000 r/min

Calculation factor - k_r - 0.025

Calculation factor - f₀ - 14.8

Mass bearing - 0.0173 kg

• Model Number: W 61903-2RZ
• Inner Diameter：30mm Outer Diameter：17mm Width：7mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-15
• Application:stamping die,medical treatment,raw material accessories,food / grain / food equipment,security,economic mold,tapered grinder,ventilator anesthesia machine etc,construction machinery and equipment,Film machine,ventilation heating equipment
• Similar models:ZEN 61903-Z.T9H.C3 ISB 61903-RZ ZEN F61903 CRAFT 61903-2RS ISB SS61903-ZZ ZEN F61903-2Z CX 61903 SKF W61903R CX 61903-2RS FAG 61903-2RSR
• BEARING POWER International Trading Co.,Ltd. specialize in W61903-2RZ products，there is large inventory of SKF W 61903-2RZ . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 61903-2RZ Which SKF W61903-2RZ 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
  22222-E-K-W33+AHX3122	110	200	53	NKE	Spherical Roller Bearings
  30202 A	15	35	11,75	CX	Tapered Roller Bearings
  320RF02	320	532		Timken	Cylindrical Roller Bearings
  498/493-B	84,138	136,525	29,769	Timken	Tapered Roller Bearings
  6000-2NKE9	10	26	8	NACHI	Deep Groove Ball Bearings
  6807ZZ	35	47	7	NTN	Deep Groove Ball Bearings
  90BNR19XE	90	125	18	NSK	Angular Contact Ball Bearings
  AXZ 8 45 66	45	66	8	KOYO	Needle Roller Bearings
  BT4-8160 E8/C475	457,098	343,052	254	SKF	Tapered Roller Bearings
  GE 018/32 XES	18	32	19	CX	Plain Bearings
  GE220FO-2RS	220	340	175	ISO	Plain Bearings
  M-22161	34,925	41,275	25,4	NSK	Needle Roller Bearings
  MK13161	20.638	26.988	25.400	KOYO	Needle Roller Bearings
  MR62ZZ	2	6	2,5	ISB	Deep Groove Ball Bearings
  RNAO14X22X20	14	22	20	KOYO	Needle Roller Bearings
  RNAO35x45x26	35	45		CX	Cylindrical Roller Bearings
  UCPA208	40			CRAFT	Bearing Units
  VKBA 899				SKF	Wheel Bearings
  6015-RSNR	75	115	20	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  NNC-4952V	260	360	100	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS