24856-B-MB Spherical Roller Bearings With Central Rib Cylindrical Bore

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24856-B-MB

Bore Diameter:280 mm

Outside Diameter:350 mm

Width:69 mm

Weight:15.2 kg

Min. Order:1 Piece

The 24856-B-MB 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 24856-B-MB bearing is a Spherical roller bearings With central rib Cylindrical bore with an inner diameter of 280 mm , an outer diameter of 350 mm, a width of 69 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 709932 N, its static radial rated load is approximately 1759919 N. It uses CN standard radial clearance, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

280 mm

Outside Diameter:

350 mm

Thickness:

69 mm

Weight:

15.2 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

709932 N

Static load Capacity, Radial (Cor):

1759919 N

Limiting speed (Oil rpm):

1192

Specifications:

Old Designations:

24856BMB

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

Operating Temperature:

-30 to +200 °C

System of Measurement:

Metric

Series:

248..-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

24856-B-MB bearings ( 280 mm x 350 mm x 69 mm) have the advantages of Self-aligning, high load-bearing capacity, and impact resistant, and are therefore widely used in the Mining machinery, metallurgical equipment, papermaking machinery, vibrating screens, wind turbines, and large industrial gearboxes.

Part Number	24856-B-MB
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	24856BMB
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
d φ Inside [inch]	11.024
D Φ Outside [inch]	13.780
B Width [inch]	2.717
n_G Limiting speed (oil) [min^–1]	1192
Weight [kg]	15.2
r(min.) Chamfer [inch]	0.079
D₁ [inch]	12.937
d_s [inch]	0.189
n_s [inch]	0.374
C_r Radial Dynamic [lbf]	159592
C_0r Radial static [lbf]	395629
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	11.370
D_a(max.) [inch]	13.433
r_a(max.) [mm]	15.2
Calculation coefficient
e	0.18
Y₀	3.72
Y₁	3.8
Y₂	5.66

The 24856-B-MB 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 24856-B-MB ( 15.2 kg Mass, ID: 280 mm OD: 350 mm WD: 69 mm , 248..-B-MB Series , 2 Rows , CN Radial Clearance , GCr15, GCr15SiMn, SUJ2 Material , 709932 Radial dynamic , 1759919 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 24856-B-MB. 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.

24856-B-MB Spherical Roller Bearings With Central Rib Cylindrical Bore

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