24888-B-K30-MB-C3 Spherical Roller Bearings With Central Rib Tapered Bore (K30 = Taper 1:30)

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24888-B-K30-MB-C3

Bore Diameter:440 mm

Outside Diameter:540 mm

Width:100 mm

Weight:49.2 kg

Min. Order:1 Piece

The 24888-B-K30-MB-C3 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 24888-B-K30-MB-C3 bearing is a Spherical roller bearings With central rib tapered bore (K30 = taper 1:30) with an inner diameter of 440 mm , an outer diameter of 540 mm, a width of 100 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 1499903 N, its static radial rated load is approximately 3999936 N. It uses C3 standard radial clearance, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

440 mm

Outside Diameter:

540 mm

Thickness:

100 mm

Weight:

49.2 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

1499903 N

Static load Capacity, Radial (Cor):

3999936 N

Fatigue Load Limit, Radial:

264911 N

Limiting speed (Oil rpm):

737

Specifications:

Old Designations:

24888BK30MBC3

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:

K30 = Tapered bore (K30 = taper 1:30)

Operating Temperature:

-30 to +200 °C

System of Measurement:

Metric

Series:

248..-B-K30-MB-C3

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

24888-B-K30-MB-C3 bearings ( 440 mm x 540 mm x 100 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	24888-B-K30-MB-C3
Design drawing	2
Design Type	B = with fixed central rib
Bore Type	K30 = Tapered bore (K30 = taper 1:30)
RIC	C3
Row	2
Bearing Type	Spherical roller bearings With central rib tapered bore (K30 = taper 1:30)
Manufacturer Part Code	24888BK30MBC3
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
d φ Inside [inch]	17.323
D Φ Outside [inch]	21.260
B Width [inch]	3.937
n_G Limiting speed (oil) [min^–1]	737
Weight [kg]	49.2
r(min.) Chamfer [inch]	0.083
D₁ [inch]	20.059
d_s [inch]	0.248
n_s [inch]	0.480
C_r Radial Dynamic [lbf]	337178
C_0r Radial static [lbf]	899185
C_ur Radial Fatigue [lbf]	59551
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	17.724
D_a(max.) [inch]	20.866
r_a(max.) [mm]	49.2
Calculation coefficient
e	0.18
Y₀	3.67
Y₁	3.76
Y₂	5.59

The 24888-B-K30-MB-C3 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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24888-B-K30-MB-C3 Spherical Roller Bearings With Central Rib Tapered Bore (K30 = Taper 1:30)

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