239/530-MB-C4 Spherical Roller Bearings With Central Rib Cylindrical Bore

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239/530-MB-C4

Bore Diameter:530 mm

Outside Diameter:710 mm

Width:136 mm

Weight:160 kg

Min. Order:1 Piece

The 239/530-MB-C4 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 239/530-MB-C4 bearing is a Spherical roller bearings With central rib Cylindrical bore with an inner diameter of 530 mm , an outer diameter of 710 mm, a width of 136 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 2849919 N, its static radial rated load is approximately 6799903 N. It uses C4 standard radial clearance, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

530 mm

Outside Diameter:

710 mm

Thickness:

136 mm

Weight:

160 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

2849919 N

Static load Capacity, Radial (Cor):

6799903 N

Fatigue Load Limit, Radial:

384923 N

Reference speed (Grease rpm):

492

Limiting speed (Oil rpm):

628

Specifications:

Old Designations:

239/530MBC4

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:

239..-MB-C4

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

239/530-MB-C4 bearings ( 530 mm x 710 mm x 136 mm) 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	239/530-MB-C4
Design drawing	2
Bore Type	Z = Cylindrical bore
RIC	C4
Row	2
Bearing Type	Spherical roller bearings With central rib Cylindrical bore
Manufacturer Part Code	239/530MBC4
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
d φ Inside [inch]	20.866
D Φ Outside [inch]	27.953
B Width [inch]	5.354
n_B Reference speed (grease) [min^–1]	492
n_G Limiting speed (oil) [min^–1]	628
Weight [kg]	160
r(min.) Chamfer [inch]	0.197
D₁ [inch]	25.846
d_s [inch]	0.492
n_s [inch]	0.925
C_r Radial Dynamic [lbf]	640661
C_0r Radial static [lbf]	1528618
C_ur Radial Fatigue [lbf]	86530
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	21.575
D_a(max.) [inch]	27.244
r_a(max.) [mm]	160
Calculation coefficient
e	0.18
Y₀	3.76
Y₁	3.85
Y₂	5.73

The 239/530-MB-C4 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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239/530-MB-C4 Spherical Roller Bearings With Central Rib Cylindrical Bore

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