24868-B-MB Spherical Roller Bearings With Central Rib Cylindrical Bore

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24868-B-MB

Bore Diameter:340 mm

Outside Diameter:420 mm

Width:80 mm

Weight:28.4 kg

Min. Order:1 Piece

The 24868-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 24868-B-MB bearing is a Spherical roller bearings With central rib Cylindrical bore with an inner diameter of 340 mm , an outer diameter of 420 mm, a width of 80 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 964905 N, its static radial rated load is approximately 2499915 N. It uses CN standard radial clearance, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

340 mm

Outside Diameter:

420 mm

Thickness:

80 mm

Weight:

28.4 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

964905

Static load Capacity, Radial (Cor):

2499915

Fatigue Load Limit, Radial:

150933

Limiting speed (Oil rpm):

979

Specifications:

Old Designations:

24868BMB

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:

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

24868-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	24868-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	24868BMB
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
d φ Inside [inch]	13.386
D Φ Outside [inch]	16.535
B Width [inch]	3.150
n_G Limiting speed (oil) [min^–1]	979
Weight [kg]	28.4
r(min.) Chamfer [inch]	0.083
D₁ [inch]	15.591
d_s [inch]	0.189
n_s [inch]	0.374
C_r Radial Dynamic [lbf]	216910
C_0r Radial static [lbf]	561980
C_ur Radial Fatigue [lbf]	33929
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	13.787
D_a(max.) [inch]	16.134
r_a(max.) [mm]	28.4
Calculation coefficient
e	0.18
Y₀	3.72
Y₁	3.8
Y₂	5.66

The 24868-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 24868-B-MB ( 28.4 kg Mass, ID: 340 mm OD: 420 mm WD: 80 mm , 248..-B-MB Series , 2 Rows , CN Radial Clearance , GCr15, GCr15SiMn, SUJ2 Material , 964905 Radial dynamic , 2499915 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 24868-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.

24868-B-MB Spherical Roller Bearings With Central Rib Cylindrical Bore

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