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Single Row Ball Bearing With Angular Contact Seal

H719-2RZC/P4 Double Seal Angular Contact Ball Bearing H718-2RZC/P4 Double Sealed Angular Contact Ball Bearings H70-2RZC/P4 Double Seal Angular Contact Ball Bearing H72-2RZC/P4 Double Sealed Angular Contact Ball Bearings 3NCHAR014CA-6/1BYZ P2 Ceramic Ball Spindle Bearing Double Seal

Screw bearing

BS Series Ball Screw Bearings BS Series High-precision Ball Screw Bearings with Double Seals TAC Series Ball Screw Bearings TAC High-precision Ball Screw Bearings with Double Seals 7602 Series Ball Screw Bearings 7602 High-precision Ball Screw Bearings With Double Seals 7603 Series Ball Screw Bearings 7603 Series Ball Screw Support Bearings With Double Seals FL760/P4 DBB Series Flange Type Spindle Bearings ZKLF Series Spindle Bearings Combined Bearings Series ZARN ZKLN Series Spindle Bearings

BNR/BAR/BTR/BER/BGR High-speed Thrust Angular Contact Ball Bearings

BGR10/19 Ultra-high Speed Ball bearing BER10/19 Ultra High Frequency Spindle Bearing BTR10/19 Main Shaft Thrust Bearing Ultra High Frequency BAR10/19 Ultra High Frequency Spindle Bearing BNR10/19 Main Shaft Thrust Bearing Ultra-high Frequency

Servo Motor Bearings

Servo Motor Bearing

Crossed Roller Bearings

Crossed Roller Bearings YRT Series Crossed Roller Bearings Series RA Crossed Roller Bearings Series RU RB Series Cross Roller Bearings

DLR Directly Lubricates Bearings

HCB719-CDLR-P4S Series HCB719-EDLR-P4S Series HC719-EDLR-P4S Series HCB70-CDLR-P4S Series HCB70-EDLR-P4S High-speed Spindle Bearings HC70-EDLR-P4S Series

High Speed Floating Displacement Bearing FD

FD1010-2RSD-T-P4S Series With Seal FD1010-DLR-T-P4S Series Direct Lubrication FD1010-T-P4S Series FD1010-K-T-P4S Series Tapered Bore

Cylindrical Roller Bearings

Tandem Radial Thrust Cylindrical Roller Bearing NNU49 Double Row Cylindrical Roller Bearings Series NNU49K Double Row Cylindrical Roller Bearings Series N10 Series Cylindrical Roller Bearings NN30K Series (Nylon/Brass Holder)

Tandem Thrust Cylindrical Roller Bearings

Tandem Thrust Cylindrical Roller Bearing

2344/2347 Double-way Thrust Angular Contact Ball Bearing

Three Column Thrust Angular Contact Ball Bearing With Flange 2344 Series Double Angular Contact Thrust Ball Bearings 2347 Series Double Angular Contact Thrust Ball Bearings

Flexible Bearing

Flexible Bearings

Thin Wall Bearings

Thin-walled Constant Cross-section Deep Groove Ball Bearings Sealed Thin-walled Bearing Type X Thin-walled Deep Groove Ball Bearing With Constant Section Seal Thin-walled Constant Cross-section Angular Contact Bearing Thin-walled Bearings With Four Contact Points And Constant Section Seal Thin-walled Metric Bearings PB Series Metric X-type Thin Wall Four Point Contact Ball Bearings Metric A-type Thin-wall Angular Contact Ball Bearings Metric C-type Thin Wall Deep Groove Ball Bearings

Double Row Angular Contact Ball Bearing

Double Row Angular Contact Bearing With Nylon Retainer Double Row Ball Bearings With Crowned Steel Cage Double Row Angular Contact Bearing With S-shaped Holder Double Row Angular Contact Bearing With U-shaped Holder Double Row Angular Contact Bearing With Brass Retainer Double Row Angular Contact Bearing With Two Inner Rings Thin-walled Bearing With Nylon Retainer (Series 38, 39, 30) LR50 Series Roller Bearing Rollers LR52 LR53 (series 3057, 3067, 3058, 3068) Double Row Angular Contact Roller Bearing For Guide Rollers

Double Row Deep Groove Ball Bearings

Double Row Deep Groove Ball Bearing With Nylon Retainer Double Row Deep Groove Ball Bearing With Crown Steel Retainer

Stainless Steel Angular Contact Ball Bearings

H719C-AC Ultra High Speed Bearing Stainless Steel 719C/AC Angular Contact Bearings Stainless Steel Angular Contact Bearing Standard Type 718C/AC H70C-AC Ultra High Speed Bearing Stainless Steel Angular Contact Bearing Standard Type 70C/AC Stainless Steel Angular Contact Bearing Standard Type 72C/AC BGR10/19 Ultra High Speed Spindle Bearings BTR10/19 Ultra High Speed Spindle Bearing BAR10/19 Ultra High Speed Spindle Bearings BER10/19 Ultra High Speed Spindle Bearings BNR10/19 Ultra High Speed Spindle Bearings H718-2RZC Double-sided Sealed Bearing H70-2RZC Double-sided Sealed Bearing H72-2RZC Double-sided Sealed Bearing H719-2RZC Series Ultra High Speed Sealed Stainless Steel Bearings

BAX Series Angular Contact Bearings

BAX Series Angular Contact Bearings

Inch Angular Contact Ball Bearings

LYLKWE Series Inch Angular Contact Ball Bearings
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Home / Cylindrical Roller Bearings / NNU49K Double Row Cylindrical Roller Bearings Series

NNU49K Double Row Cylindrical Roller Bearings Series

The NNU49K double-row cylindrical roller bearings series adopts a double-row cylindrical roller arrangement. The rollers fit closely with the raceway and can bear large radial loads and bidirectional axial loads simultaneously, providing stable support for the equipment.

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NNU49K Double Row Cylindrical Roller Bearings Series

	Type	Main dimensions			Rated load		Rated speed
					Dynamics	Static	Speed limit
Mail		d[mm]	D[mm]	B[mm]	C[kN]	C₀[kN]	[r/min]
	NNU4930-S-K-M-SP	150	210	60	330000.0	650000.0	3550.0
	NNU4928-S-K-M-SP	140	190	50	190000.0	400000.0	4250.0
	NNU4926-S-K-M-SP	130	180	50	188000.0	385000.0	4450.0
	NNU4924-S-K-M-SP	120	165	45	175000.0	340000.0	4750.0
	NNU4922-S-K-M-SP	110	150	40	132000.0	270000.0	5400.0
	NNU4921-S-K-M-SP	105	145	40	130000.0	260000.0	5500.0
	NNU4920-S-K-M-SP	100	140	40	128000.0	255000.0	5700.0

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Dentail

Double-row Cylindrical Roller Arrangement：The NNU49K double-row cylindrical roller bearings series adopts a double-row cylindrical roller arrangement. The rollers fit closely with the raceway and can bear large radial loads and bidirectional axial loads simultaneously, providing stable support for the equipment.
Precision Ring Process：The inner and outer rings have gone through a series of high-precision processing procedures such as forging, fine grinding, and heat treatment. They possess excellent dimensional accuracy and surface hardness, ensuring precise cooperation with the rollers and reducing operational wear.
High-quality Cage Design：The cage is mostly made of high-strength engineering plastics or special alloy materials. Its structure is optimized to accurately guide the movement of the rollers, avoid collisions and friction between the rollers, and maintain the smooth operation of the bearing.

Application

The bearings can be used in the following industries

Heavy-duty Machine Tool Manufacturing：Used in the spindle systems of large CNC lathes and boring machines, bearing huge loads during machining and ensuring machining accuracy and surface quality.
Metallurgical Industry Equipment：In metallurgical equipment such as rolling mills and continuous casters, it copes with high temperature, heavy loads, and complex force actions, ensuring the stable operation of the equipment.
Wind Power Equipment Field：The spindle bearing part of wind turbines adopts this series, adapting to the changeable outdoor environment, bearing various loads during the operation of the wind turbine, and ensuring power generation efficiency.