239/500-K-MB Double Row Spherical Roller Bearings, Symmetric 3 Ribs

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239/500-K-MB

Bore Diameter:500 mm

Outside Diameter:670 mm

Width:128 mm

Weight:124.5 kg

Min. Order:1 Piece

The 239/500-K-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 239/500-K-MB bearing is a Double row spherical roller bearings, symmetric 3 ribs with an inner diameter of 500 mm , an outer diameter of 670 mm, a width of 128 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 2599833 N, its static radial rated load is approximately 6299827 N. It uses CN standard radial clearance, OPEN type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

500 mm

Outside Diameter:

670 mm

Thickness:

128 mm

Weight:

124.5 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

2599833 N

Static load Capacity, Radial (Cor):

6299827 N

Fatigue Load Limit, Radial:

409936 N

Reference speed (Grease rpm):

516

Limiting speed (Oil rpm):

966

Specifications:

Old Designations:

239/500KMB

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:

K = Tapered bore (taper 1:12)

Operating Temperature:

-30 to +200 °C

System of Measurement:

Metric

Series:

239..-K-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

239/500-K-MB bearings ( 500 mm x 670 mm x 128 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	239/500-K-MB
Bore Type	K = Tapered bore (taper 1:12)
RIC	CN
Row	2
Adapter sleeve	H39/500-HG
Bearing Type	Double row spherical roller bearings, symmetric 3 ribs
Manufacturer Part Code	239/500K.MB
Equivalent	239/500K.MB
Withdrawal sleeve	AH39/500-H
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
Seal type	OPEN
d φ Inside [inch]	19.685
D Φ Outside [inch]	26.378
B Width [inch]	5.039
n_B Reference speed (grease) [min^–1]	516
n_G Limiting speed (oil) [min^–1]	966
Weight [kg]	124.5
r(min.) Chamfer [inch]	0.197
D₁ [inch]	24.382
d_s [inch]	0.492
n_s [inch]	0.925
C_r Radial Dynamic [lbf]	584442
C_0r Radial static [lbf]	1416201
C_ur Radial Fatigue [lbf]	92153
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	20.394
d_a(max.) [inch]	21.378
D_a(max.) [inch]	25.669
d_b(min.) [inch]	20.315
B_a(min.) [inch]	0.709
r_a(max.) [mm]	124.5
Calculation coefficient
e	0.17
Y₀	3.81
Y₁	3.9
Y₂	5.81

The 239/500-K-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 239/500-K-MB ( 124.5 kg Mass, ID: 500 mm OD: 670 mm WD: 128 mm , 239..-K-MB Series , 2 Rows , CN Radial Clearance , GCr15, GCr15SiMn, SUJ2 Material , 2599833 Radial dynamic , 6299827 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 239/500-K-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.

239/500-K-MB Double Row Spherical Roller Bearings, Symmetric 3 Ribs

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