d - 440 mm

F - 490 mm

D - 600 mm

B - 160 mm

C - 160 mm

r min. - 4 mm

s - 2,5 mm

da min. - 456 mm

Da max. - 584 mm

ra max. - 3 mm

Weight - 123 Kg

Basic dynamic load rating (C) - 1750 kN

Basic static load rating (C0) - 4600 kN

(Grease) Lubrication Speed - 550 r/min

(Oil) Lubrication Speed - 800 r/min

• Model Number:NA4988
• Inner Diameter：440mm Outer Diameter：600mm Width：160mm
• Type：Needle Roller Bearings
• Update date：2023-03-02
• Application:rock drilling machinery,comprehensive experiment,Spectrum Products,noise inspection,injection molding machine,orthodontic material,extruder,set bacteria instrument,Traffic Fire Protection Equipment Security equipment,Spectrum Products,Industrial
• Similar models:CX NA4988 ISO NA4988 NTN NA4988 ISO RNA4988 NSK RNA4988 NSK NA4988 IKO RNA4988 NTN RNA4988 CX RNA4988 IKO NA4988
• BEARING POWER International Trading Co.,Ltd. specialize in NA4988 products，there is large inventory of NTN NA4988 . We has been built up long-term cooperation with NTN company, could make a bulk order of the NA4988 Which NTN NA4988 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
  23992 CA/W33	620	460	118	SKF	Spherical Roller Bearings
  29284 M	420	580	95	ISB	Thrust Roller Bearings
  54420 M U 420	80	210	159,9	ISB	Thrust Ball Bearings
  6032LLU	160	240	38	NTN	Deep Groove Ball Bearings
  6901ZZNR	12,000	24,000	6,000	NTN	Deep Groove Ball Bearings
  7211 CDB	55	100	42	ISO	Angular Contact Ball Bearings
  7321BGM	105,000	225,000	49,000	SNR	Angular Contact Ball Bearings
  760/752B	90,488	161,925	48,26	Timken	Tapered Roller Bearings
  AST650 182425	18	24		AST	Plain Bearings
  H913849/H913810	69,85	146,05	41,275	Fersa	Tapered Roller Bearings
  HK1414RS	14	20	14	KOYO	Needle Roller Bearings
  K81103TN	17	30	18	SKF	Thrust Roller Bearings
  M239448A/410	191,237	279,4	52,388	ISB	Tapered Roller Bearings
  RTM-618				Andrews	THRUST ROLLER BEARINGS
  6309Z	45	100	25	FAG	DEEP GROOVE BALL BEARINGS
  23044CC	220	340	90	SKF	SPHERICAL ROLLER BEARINGS
  XLS-181/2	18.5000	24.5000	3.0000	HOFF	DEEP GROOVE BALL BEARINGS
  5308-2RS	40	90	36.5	CONSOLIDATED	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  N-217E	85	150	28	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  RLS-27-L	9.0000	14.5000	2.0000	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS