d - 1,984 mm

D - 6,35 mm

B - 3,571 mm

C - 3,571 mm

r min. - 0,08 mm

da min. - 2,8 mm

da max - 3,3 mm

Da max. - 5,5 mm

ra max. - 0,08 mm

Weight - 0,41 Kg

Basic dynamic load rating (C) - 0,279 kN

Basic static load rating (C0) - 0,089 kN

(Grease) Lubrication Speed - 67000 r/min

(Oil) Lubrication Speed - 79000 r/min

Calculation factor (f0) - 12,8

• Model Number: RA1-4ZA
• Inner Diameter：1,984mm Outer Diameter：6,35mm Width：3,571mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-16
• Application:Laser Devices,rolling mill roll neck and slowdown device,mathematical instruments,security,Sensors,Infrared Technology,industrial equipment,vertical pull,Optical Instruments,other rubber,supporting facilities
• Similar models:SKF 309-2Z NKE 61828 KOYO 6801-2RS SNR UK319 SNR 6308HVZZ ISO 6306-2RS CYSD 6211-2RS ISO 61812 NTN SX0590LUN RHP LJ1.3/4-Z
• BEARING POWER International Trading Co.,Ltd. specialize in RA1-4ZA products，there is large inventory of NTN RA1-4ZA . We has been built up long-term cooperation with NTN company, could make a bulk order of the RA1-4ZA Which NTN RA1-4ZA 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
  23240-B-MB	200	360	128	FAG	Spherical Roller Bearings
  430330	150	320	154	NTN	Tapered Roller Bearings
  51100	10	24		AST	Thrust Ball Bearings
  6208ZZ	40	80	18	FBJ	Deep Groove Ball Bearings
  6222 ZZ	110	200	38	ISO	Deep Groove Ball Bearings
  627-RSL	7	22	7	SKF	Deep Groove Ball Bearings
  6311-2Z	55	120	29	FAG	Deep Groove Ball Bearings
  7038CPA	190	290	46	KOYO	Angular Contact Ball Bearings
  K25×31×17	25	31		NTN	Needle Roller Bearings
  LUJR 25	25			SKF	Linear Bearings
  NN3018 K	90	140	37	ISO	Cylindrical Roller Bearings
  NU29/800E	800	1060	150	FAG	CYLINDRICAL ROLLER BEARINGS
  23968MB	340	460	90	FAG	SPHERICAL ROLLER BEARINGS
  3205B.2ZR	25	52	20.6	FAG	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  6014.RSNR	70	110	20	FAG	DEEP GROOVE BALL BEARINGS
  HE2326	130	165		STEYR	ADAPTERS
  1060SD40	1060	1500	438	Torrington (Old No.)	SPHERICAL ROLLER BEARINGS
  1215	75	130	25	New Departure	DEEP GROOVE BALL BEARINGS
  30311	55	120	29	CONSOLIDATED	TAPERED ROLLER BEARINGS
  479209D	45	3.3460	.9640	CONSOLIDATED	PILLOW BLOCKS