23280BMB Spherical Roller Bearings With Central Rib Cylindrical Bore

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23280BMB

Bore Diameter:400 mm

Outside Diameter:720 mm

Width:256 mm

Weight:469 kg

Min. Order:1 Piece

The 23280BMB Double-row spherical roller bearings are suitable for heavy-load, impact, and eccentric conditions. Classic applications include vibrating screen exciters, crushers, fans, paper machine press rolls, mining conveyor equipment, and marine propulsion shafts.

The 23280BMB bearing is a Spherical roller bearings With central rib Cylindrical bore with an inner diameter of 400 mm , an outer diameter of 720 mm, a width of 256 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 5699914 N, its static radial rated load is approximately 10799950 N. It uses CN standard radial clearance, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

400 mm

Outside Diameter:

720 mm

Thickness:

256 mm

Weight:

469 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

5699914

Static load Capacity, Radial (Cor):

10799950

Fatigue Load Limit, Radial:

819910

Reference speed (Grease rpm):

361

Limiting speed (Oil rpm):

700

Specifications:

Structure:

Spherical Roller Bearings

Number of Rows:

Radial Clearance Trade No.:

Bearing Material:

GCr15, GCr15SiMn, SUJ2

Cage Type:

MB = Solid brass cage, guided on inner ring

Rolling Mlement Material:

GCr15, SUJ2

Bore Type:

Z = Cylindrical bore

System of Measurement:

Metric

Series:

232..-B-MB

Rolling Element:

symmetrical 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

23280BMB bearings have the advantages of Self-aligning, extremely high load-bearing capacity, thinnest cross-section, low friction, suitable for confined spaces, and are therefore widely used in the Large crushers, mills, and rotary kilns.

Part Number	23280BMB
Design drawing	2
Design Type	B = with fixed central rib
Bore Type	Z = Cylindrical bore
RIC	CN
Row	2
Bearing Type	Spherical roller bearings With central rib Cylindrical bore
Manufacturer Part Code	23280BMB
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
d φ Inside [inch]	15.748
D Φ Outside [inch]	28.346
B Width [inch]	10.079
n_B Reference speed (grease) [min^–1]	361
n_G Limiting speed (oil) [min^–1]	700
Weight [kg]	469
r(min.) Chamfer [inch]	0.236
D₁ [inch]	24.008
d_s [inch]	0.492
n_s [inch]	0.925
C_r Radial Dynamic [lbf]	1281340
C_0r Radial static [lbf]	2427828
C_ur Radial Fatigue [lbf]	184315
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	16.772
D_a(max.) [inch]	27.323
r_a(max.) [mm]	469
Calculation coefficient
e	0.38
Y₀	1.74
Y₁	1.78
Y₂	2.65

The 23280BMB Double-row spherical roller bearings mainly consist of an inner ring, an outer ring, two rows of spherical rollers, a cage, and seals. The outer ring raceway has a spherical structure, while the inner ring has a double-row raceway. The rollers and raceways are logarithmically curved. The cage is typically made of stamped steel or machined brass.

Double-row spherical roller bearings possess excellent self-aligning properties, compensating for shaft deflection, installation errors, and misalignment. They can simultaneously withstand radial loads and bidirectional axial loads, exhibiting extremely high load-bearing capacity and strong impact resistance. Furthermore, the internal clearance can be optimized for vibration conditions, effectively reducing frictional temperature rise.

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High quality 23280BMB ( 469 kg Mass, ID: 400 mm OD: 720 mm WD: 256 mm , 232..-B-MB Series , 2 Rows , CN Radial Clearance , GCr15, GCr15SiMn, SUJ2 Material , 5699914 Radial dynamic , 10799950 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 23280BMB. 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.

23280BMB Spherical Roller Bearings With Central Rib Cylindrical Bore

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