238/560MB Double Row Spherical Roller Bearings, Symmetric 3 Ribs

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238/560MB

Bore Diameter:560 mm

Outside Diameter:680 mm

Width:90 mm

Weight:69 kg

Min. Order:1 Piece

The 238/560MB 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 238/560MB bearing is a Double row spherical roller bearings, symmetric 3 ribs with an inner diameter of 560 mm , an outer diameter of 680 mm, a width of 90 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 1649812 N, its static radial rated load is approximately 4599812 N. It uses CN standard radial clearance, OPEN type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

560 mm

Outside Diameter:

680 mm

Thickness:

90 mm

Weight:

69 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

1649812 N

Static load Capacity, Radial (Cor):

4599812 N

Fatigue Load Limit, Radial:

334908 N

Reference speed (Grease rpm):

450

Limiting speed (Oil rpm):

1007

Specifications:

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

Seals Type:

OPEN

Rolling Mlement Material:

GCr15, SUJ2

Bore Type:

Z = Cylindrical bore

Operating Temperature:

-30 to +200 °C

System of Measurement:

Metric

Series:

238..-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

238/560MB bearings ( 560 mm x 680 mm x 90 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	238/560MB
Bore Type	Z = Cylindrical bore
RIC	CN
Row	2
Bearing Type	Double row spherical roller bearings, symmetric 3 ribs
Manufacturer Part Code	238/560MB
Equivalent	238/560MB
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
Seal type	OPEN
d φ Inside [inch]	22.047
D Φ Outside [inch]	26.772
B Width [inch]	3.543
n_B Reference speed (grease) [min^–1]	450
n_G Limiting speed (oil) [min^–1]	1007
Weight [kg]	69
r(min.) Chamfer [inch]	0.118
D₁ [inch]	25.461
d_s [inch]	0.248
n_s [inch]	0.480
C_r Radial Dynamic [lbf]	370877
C_0r Radial static [lbf]	1034037
C_ur Radial Fatigue [lbf]	75287
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	22.535
D_a(max.) [inch]	26.283
r_a(max.) [mm]	69
Calculation coefficient
e	0.11
Y₀	5.81
Y₁	5.94
Y₂	8.84

The 238/560MB 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 238/560MB ( 69 kg Mass, ID: 560 mm OD: 680 mm WD: 90 mm , 238..-MB Series , 2 Rows , CN Radial Clearance , GCr15, GCr15SiMn, SUJ2 Material , 1649812 Radial dynamic , 4599812 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 238/560MB. 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.

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