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JinHang Precision Bearing Co.,Limited
JinHang Precision Bearing Co.,Limited
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Roller bearing NNU4918KMSP 90X125X35MM forTurning spindle machine in stock

JinHang Precision Bearing Co.,Limited

Roller bearing NNU4918KMSP 90X125X35MM forTurning spindle machine in stock

Brand Name : JHB or OEM

Model Number : NNU4918KMSP

Certification : Quality certificate

Place of Origin : China

MOQ : 2pcs

Price : USD100

Payment Terms : Western Union, T/T, L/C

Delivery Time : 2 days

Packaging Details : standard carton

Material : GCr15

Clearance : C1 C2 C3

grease : oil or grease

Outer dia : 125mm

Inner dia : 90mm

Height : 35mm

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Roller bearing NNU4918KMSP 90X125X35MM forTurning spindle machine in stock

We/JinHang precision bearing orrer radial cylindrical roller bearings can offer higher radial load capacity than other bearing designs. The offers a wide range of full complement, one -, two -, and four-row designs to meet various application requirements.
cylindrical roller bearings consist of an inner and outer ring, a roller-retaining cage, and a complement of controlled- contour cylindrical rollers. Depending on the type of bearing, either the inner or the outer ring has two roller-guiding ribs. The other ring is separable from the assembly and has one rib or none. The ring with two ribs axially locates the position of the roller assembly. The ground diameters of these ribs may be used to support the roller cage. One of the ribs may be used to carry light thrust loads when an opposing rib is provided. The decision as to which ring should be double ribbed is normally determined by considering assembly and mounting procedures in the application.

NNU4918KMSPW33 bearing details as following:

Roller bearing NNU4918KMSP 90X125X35MM forTurning spindle machine in stock

Bearing type NNU4918KMSPW33
Boundary 90x125x35mm
Bore: 90mm
Outer diameter 125mm
Height 35mm
Material Chrome steel
Precision grade P2 P4 P5 Accuracy
Clearance C1 C2C0 C3
Package Polybag +Box+Carton
HS code 8482500090

N:Cylindrical roller bearings single row lips on inner ring
NN:Cylindrical roller bearings double row lips on inner rings
NNU:Cylindrical roller bearings double lips on outer rings
Dimension series:
10:Medium series
30:Medium series
49:light series

K:tapered bore 1:12

M:brass cage
TN:Nylon cage
W33:Oil hole on outer ring

Accuracy:
SP:special precision
UP:Ultra precision
P2 P4 P5:ISO precision

Clearance:
C1 C2 C3 C0

Bearing type Inner diameter(mm) Outer diameter(mm) Height(mm)
NN3010KW33 50 80 23
NN3011KW33 55 90 26
NN3012KW33 60 95 26
NN3013KW33 65 100 26
NNU4914KW33 70 110 30
NN3014KW33 70 110 30
NNU4915KW33 75 105 30
NN3015KW33 75 115 30
NNU4916KW33 80 110 30
NN3016KW33 80 125 34
NNU4917KW33 85 120 35
NN3017KW33 85 130 34
NNU4918KW33 90 125 35
NN3018KW33 90 140 37
NNU4919KW33 95 130 35
NN3019KW33 95 145 37
NNU4920KW33 100 140 40
NN3020KW33 100 150 37
NNU4921KW33 105 145 40
NN3021KW33 105 160 41
NNU4922KW33 110 150 40
NN3022KW33 110 170 45
NNU4924KW33 120 165 40
NN3024KW33 120 180 46

The application:
high speed tubular strander
Turbine engine mainshafts
Transmissions
large-size generators,
machine tool spindles,
axle boxes,
bent axles of diesel engines,
gearboxes
Mechanical presses
Electrical motors
Pumps and compressors
Traction motors for railway vehiches
Axle boxes for railway vehicles

Full-Complement (NCF)
The full-complement (NCF) single-row bearings include integral flanges on the inner and outer rings. These bearings also can manage axial loads in one direction and permit small axial
displacements.

Roller bearing NNU4918KMSP 90X125X35MM forTurning spindle machine in stock
TWO-ROW BEARINGS
Two-row, or double-row, cylindrical bearings offer added radial capacity over tradition one-row types. These bearing types are interchangeable so the dimensions and diameter under the rollers (NNU style) and diameter over the rollers (NN style) are held to an ISO/DIN standard. The standard cage design is a drilled pocket, finger-style retainer
FOUR-ROW BEARINGS
Four-row cylindrical bearings have an extremely high radial load capacity, but no thrust capacity. This bearing type is mostly used in roll neck and work roll applications in the metal rolling industry. Straight and tapered bore designs are available.

In a cylindrical roller bearing, the rollers and racewaysare in linear contact. Consequently this type of bearing can support a larger radial load than a point-contact ball bearing. Also, its structure is suitable for high-speed operation.
A cylindrical roller bearing used for the main spindle of a machine tool can have either a double- or singlerow configuration, and certain variants have a tapered bore so the radial internal clearance can be adjusted.

Double-row cylindrical roller bearings
Double-row cylindrical roller bearings are available in two types, NN and NNU, and two series, 30 and 49.The rollers in the NN type bearing are guided by the ribs of the inner ring. The rollers in the NNU typebearing are guided by the ribs of the outer ring.
Bearings are available with either a tapered bore type (which allows adjustment of radial internal clearance of bearing) or a standard cylindrical bore. The bearings come in two types, standard type and high-speed HS type. Standard cage is machined brass

Manufacturing ability:


Equipped with advanced manufacturing CNC Machine and test instruments to insure the accurate tolerance , all bearings are of uniform marking and packing with superior quality, reasonable prices and perfect services. Meanwhile we can make the module to test the mounting hole.
Quality control:
All the bearing from the forging to assembly process,It will need to inspect step.For the bearing forging we will need to test the size and hardness and surface, for the lathe process and grinding process,first it will need to check by the worker ,and then the professional inspector will checking the size and accurate,The last step the monitor will inspect the size. It can insure zero defect.
Service:
It can calculate the load curve.
Can offer assembly drawing based on the bearing working condition
Can offer pre- sale ,sale and after sale service


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