NNU 6934 M Six-row Cylindrical Roller Bearing, Machined Brass Cage

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NNU 6934 M

Bore Diameter:170 mm

Outside Diameter:230 mm

Width:109 mm

Weight:14 kg

Min. Order:1 Piece

The NNU 6934 M Four-row cylindrical roller bearings is suitable for heavy machinery applications that bear huge radial loads. Classic applications include: support rolls of rolling mills, large gearboxes, heavy machine tool spindles, wind turbine spindles, ship propulsion shafts, and rotor supports for high-power compressors.

The NNU 6934 M bearing is a Six-row cylindrical roller bearing with an inner diameter of 170 mm , an outer diameter of 230 mm, a width of 109 mm. GCr15, ZGCr15, GCr15SiMn, 20Cr2Ni4A rings, GCr15, ZGCr15, GCr15SiMn, 20Cr2Ni4A rolling mlement. Its dynamic radial rated load is approximately 522307 N, its static radial rated load is approximately 1367555 N. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

170 mm

Outside Diameter:

230 mm

Thickness:

109 mm

Weight:

14 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

522307 N

Static load Capacity, Radial (Cor):

1367555 N

Specifications:

Structure:

Cylindrical Roller Bearings

Number of Rows:

Six

Bearing Material:

GCr15, ZGCr15, GCr15SiMn, 20Cr2Ni4A

Cage Type:

Machined brass cage

Seals Type:

Open

Rolling Mlement Material:

GCr15, ZGCr15, GCr15SiMn, 20Cr2Ni4A

Bore Type:

Cylindrical bore

System of Measurement:

Metric

Series:

NNU 69.. M

Rolling Element:

cylindrical rollers

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

10 Piece

Port:

Tianjin, Shanghai, Shenzhen, Guangzhou or Qingdao

Payment term:

by T/T in advance

Delivery time:

2-3 days for stock, 25-30 days for bulk production

Detailed description

NNU 6934 M bearings ( 170 mm x 230 mm x 109 mm) have the advantages of Extremely high radial load capacity, high rigidity, separable design, and are therefore widely used in the metallurgical rolling mills, large gearboxes, and heavy-duty extrusion presses.

Part Number	NNU 6934 M
Interchangeable	SKF NNU 6934 M
Outer ring	RNNU 6934 M
Inner ring	LNNU 6934
Bearing Type	Six-row cylindrical roller bearing
Cage	Machined brass cage
Seal	Open
Bore Type	Cylindrical bore
Series	NNU 69.. M
Coating	No
Units	Metric
Weight [lb]	30.864
Bearing part	Complete
Heat stabilized	150 °C(300 °F)
C_r Radial Dynamic [lbf]	117414
C_0r Radial Static [lbf]	307426
P_u Fatigue load limit [lbf]	33470
Dimension
d φ Inside [inch]	6.693
D Φ Outside [inch]	9.055
B Inner Width [inch]	4.291
C Outer Width [inch]	4.291
D₁ [inch]	7.717
F [inch]	7.382
r₁, r₂(min.) [mm]	2
r₃, r₄(min.) [mm]	2
K lubrication hole [inch]	0.118
s Permissible axial displacement [inch]	0.138
k_r Calculation coefficient	0.34

The NNU 6934 M Four-row cylindrical roller bearings mainly consist of an inner ring, an outer ring, four rows of cylindrical rollers, a cage, and a spacer. Common structures use a configuration of double outer rings (each with double raceways) and a single inner ring (with four raceways), or an interchangeable combination of inner and outer rings. Axial positioning and load distribution are achieved through the spacer.

The advantages of four-row cylindrical roller bearings are their extremely high radial load capacity, high rigidity, and the line contact between the rollers and raceways, resulting in a low coefficient of friction and allowing for high-speed operation under heavy loads. They can also be used as floating end bearings, capable of withstanding axial displacement caused by thermal expansion, and are easy to install and maintain.

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High quality NNU 6934 M ( 14 kg Mass, ID: 170 mm OD: 230 mm WD: 109 mm , NNU 69.. M Series , Six Rows , GCr15, ZGCr15, GCr15SiMn, 20Cr2Ni4A Material , 522307 Radial dynamic , 1367555 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. NNU 6934 M. then click the button " Send " The web site will make your purchasing information sent to the supplier's mailbox, who will come to contact you upon they get your information at the first time.

NNU 6934 M Six-row Cylindrical Roller Bearing, Machined Brass Cage

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