24976-B-MB Spherical Roller Bearings With Central Rib Cylindrical Bore

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24976-B-MB

Bore Diameter:380 mm

Outside Diameter:520 mm

Width:140 mm

Weight:91.1 kg

Min. Order:1 Piece

The 24976-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 24976-B-MB bearing is a Spherical roller bearings With central rib Cylindrical bore with an inner diameter of 380 mm , an outer diameter of 520 mm, a width of 140 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 2279914 N, its static radial rated load is approximately 5199934 N. It uses CN standard radial clearance, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

380 mm

Outside Diameter:

520 mm

Thickness:

140 mm

Weight:

91.1 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

2279914

Static load Capacity, Radial (Cor):

5199934

Fatigue Load Limit, Radial:

434934

Limiting speed (Oil rpm):

800

Specifications:

Old Designations:

24976BMB

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:

249..-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

24976-B-MB bearings 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	24976-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	24976BMB
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
d φ Inside [inch]	14.961
D Φ Outside [inch]	20.472
B Width [inch]	5.512
n_G Limiting speed (oil) [min^–1]	800
Weight [kg]	91.1
r(min.) Chamfer [inch]	0.157
D₁ [inch]	18.705
d_s [inch]	0.248
n_s [inch]	0.480
C_r Radial Dynamic [lbf]	512524
C_0r Radial static [lbf]	1168945
C_ur Radial Fatigue [lbf]	97773
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	15.535
D_a(max.) [inch]	19.898
r_a(max.) [mm]	91.1
Calculation coefficient
e	0.25
Y₀	2.63
Y₁	2.69
Y₂	4

The 24976-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 24976-B-MB ( 91.1 kg Mass, ID: 380 mm OD: 520 mm WD: 140 mm , 249..-B-MB Series , 2 Rows , CN Radial Clearance , GCr15, GCr15SiMn, SUJ2 Material , 2279914 Radial dynamic , 5199934 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 24976-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.

24976-B-MB Spherical Roller Bearings With Central Rib Cylindrical Bore

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