BC4B 326909 A/HA3 Four-row Rolling Mills Bearing, Machined Brass Cage

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BC4B 326909 A/HA3

Bore Diameter:350 mm

Outside Diameter:520 mm

Width:300 mm

Min. Order:1 Piece

The BC4B 326909 A/HA3 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 BC4B 326909 A/HA3 bearing is a Four-row cylindrical roller bearing for rolling mills with an inner diameter of 350 mm , an outer diameter of 520 mm, a width of 300 mm. GCr15, ZGCr15, GCr15SiMn, 20Cr2Ni4A rings, GCr15, ZGCr15, GCr15SiMn, 20Cr2Ni4A rolling mlement. Its dynamic radial rated load is approximately 4679425 N, its static radial rated load is approximately 8998886 N. It uses C2 standard radial clearance, Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

350 mm

Outside Diameter:

520 mm

Thickness:

300 mm

Performance Data:

Dynamic load Capacity, Radial (Cr):

4679425 N

Static load Capacity, Radial (Cor):

8998886 N

Reference speed (Grease rpm):

831

Limiting speed (Oil rpm):

1281

Specifications:

Structure:

Four-row cylindrical roller bearings

Number of Rows:

Four

Radial Clearance Trade No.:

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 with helical groove

System of Measurement:

Metric

Series:

BC4B 3269..A/HA3

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

BC4B 326909 A/HA3 bearings ( 350 mm x 520 mm x 300 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	BC4B 326909 A/HA3
Interchangeable	SKF BC4B 326909 A/HA3
Bearing Type	Four-row cylindrical roller bearing for rolling mills
Cage	Machined brass cage
Radial internal clearance	C2
Seal	Open
Bore Type	Cylindrical bore with helical groove
Design variant	BC4.1/W33GWI
Series	BC4B 3269..A/HA3
Coating	No
Units	Metric
Lubricant	No
Bearing part	Complete
Ring	outer ring(5),inner ring(0)
Flange	No
Relubrication	With
Heat stabilized	150 °C(300 °F)
C_r Radial Dynamic [lbf]	1051934
C_0r Radial Static [lbf]	2022949
P_u Fatigue load limit [lbf]	179648
n_B Speed ratings (grease) [rpm]	831
n_G Speed ratings (oil) [rpm]	1281
Dimension
d φ Inside [inch]	13.780
D Φ Outside [inch]	20.472
B Inner Width [inch]	11.811
C Outer Width [inch]	11.811
D₁ [inch]	18.423
F [inch]	15.787
r₁, r₂(min.) [mm]	10x20°
r₃, r₄(min.) [mm]	5
b angular groove [inch]	0.457
E [inch]	19.094
K lubrication hole [inch]	0.236

The BC4B 326909 A/HA3 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 BC4B 326909 A/HA3 ( ID: 350 mm OD: 520 mm WD: 300 mm , BC4B 3269..A/HA3 Series , Four Rows , C2 Radial Clearance , GCr15, ZGCr15, GCr15SiMn, 20Cr2Ni4A Material , 4679425 Radial dynamic , 8998886 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. BC4B 326909 A/HA3. 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.

BC4B 326909 A/HA3 Four-row Rolling Mills Bearing, Machined Brass Cage

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