d - 20 mm

D - 37 mm

B - 9 mm

d₁ - - 25.55 mm

D₂ - - 32.7 mm

r_1,2 - min. - 0.3 mm

d_a - min. - 22 mm

D_a - max. - 35 mm

r_a - max. - 0.3 mm

Basic dynamic load rating - C - 6.4 kN

Basic static load rating - C₀ - 3.6 kN

Fatigue load limit - P_u - 0.156 kN

Reference speed - 43000 r/min

Limiting speed - 26000 r/min

Calculation factor - k_r - 0.02

Calculation factor - f₀ - 14.7

Mass bearing - 0.0366 kg

• Model Number:61904
• Inner Diameter：37mm Outer Diameter：20mm Width：9mm
• Type：Deep Groove Ball Bearings
• Update date：2026-01-03
• Application:Doppler,ignition system,switch,security equipment,thin metal materials,Pneumatic Actuator,ultra-quiet generators,spectrometer,woodworking machinery,flexible processing,sewage pump
• Similar models:CX 61904 ISO 61904-2RS ZEN S61904 ZEN 61904-2RS SKF 61904-2RZ FAG 61904-2Z ISB SS61904-ZZ ZEN SF61904-2RS ZEN S61904-2RS FAG 61904-2RSR
• BEARING POWER International Trading Co.,Ltd. specialize in 61904 products，there is large inventory of SKF 61904 . We has been built up long-term cooperation with SKF company, could make a bulk order of the 61904 Which SKF 61904 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
  10MM1410	10	14	10	KOYO	Needle Roller Bearings
  22230C	150	270	73	AST	Spherical Roller Bearings
  30221	105	190	39	ISO	Tapered Roller Bearings
  30228 A	140	250	45,75	CX	Tapered Roller Bearings
  32007X	35	62	18	Timken	Tapered Roller Bearings
  6004/VA201	20	42	12	SKF	Deep Groove Ball Bearings
  6208-2Z	40	80	18	NKE	Deep Groove Ball Bearings
  726A	6	19	6	NSK	Angular Contact Ball Bearings
  F15030	70	120	60	Fersa	Tapered Roller Bearings
  GAKL 10 PB	10	22	14	INA	Plain Bearings
  HK4516	45	52	16	KOYO	Needle Roller Bearings
  KGA160	406,4	457,2	25,4	KOYO	Angular Contact Ball Bearings
  NNU4952	260	360	100	CX	Cylindrical Roller Bearings
  NU 317	85	180	41	ISB	Cylindrical Roller Bearings
  SL182980	400	510,85	82	NBS	Cylindrical Roller Bearings
  DM-80	134	80		INA	THRUST BALL BEARINGS
  WR-34	3.9370	2.1250	1.1875	FED	BALL BEARING
  608-ZZ	8	22	7	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  NUP-2032E	160	240	48	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  33116	80	130	37	CONSOLIDATED	TAPERED ROLLER BEARINGS