22256BMB Spherical Roller Bearings With Central Rib Cylindrical Bore

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22256BMB

Bore Diameter:280 mm

Outside Diameter:500 mm

Width:130 mm

Weight:113 kg

Min. Order:1 Piece

The 22256BMB 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 22256BMB bearing is a Spherical roller bearings With central rib Cylindrical bore with an inner diameter of 280 mm , an outer diameter of 500 mm, a width of 130 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 2359934 N, its static radial rated load is approximately 3649920 N. It uses CN standard radial clearance, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

280 mm

Outside Diameter:

500 mm

Thickness:

130 mm

Weight:

113 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

2359934

Static load Capacity, Radial (Cor):

3649920

Fatigue Load Limit, Radial:

237940

Reference speed (Grease rpm):

1004

Limiting speed (Oil rpm):

1095

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

Rolling Mlement Material:

GCr15, SUJ2

Bore Type:

Z = Cylindrical bore

System of Measurement:

Metric

Series:

222..XL-MB-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

22256BMB bearings have the advantages of Self-aligning, high load-bearing capacity, impact resistant, and adaptable to heavy loads, and are therefore widely used in the Gearboxes, drive shafts, conveying equipment, general machinery.

Part Number	22256BMB
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	22256BMB
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
d φ Inside [inch]	11.024
D Φ Outside [inch]	19.685
B Width [inch]	5.118
n_B Reference speed (grease) [min^–1]	1004
n_G Limiting speed (oil) [min^–1]	1095
Weight [kg]	113
r(min.) Chamfer [inch]	0.197
D₁ [inch]	17.134
d_s [inch]	0.492
n_s [inch]	0.925
C_r Radial Dynamic [lbf]	530513
C_0r Radial static [lbf]	820502
C_ur Radial Fatigue [lbf]	53488
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	11.811
D_a(max.) [inch]	18.898
r_a(max.) [mm]	113
Calculation coefficient
e	0.28
Y₀	2.37
Y₁	2.43
Y₂	3.61

The 22256BMB 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 22256BMB ( 113 kg Mass, ID: 280 mm OD: 500 mm WD: 130 mm , 222..XL-MB-B-MB Series , 2 Rows , CN Radial Clearance , GCr15, GCr15SiMn, SUJ2 Material , 2359934 Radial dynamic , 3649920 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 22256BMB. 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.

22256BMB Spherical Roller Bearings With Central Rib Cylindrical Bore

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