231/850-B-MB-H40-H78D Double Row Spherical Roller Bearings, Symmetric 3 Ribs

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231/850-B-MB-H40-H78D

Bore Diameter:850 mm

Outside Diameter:1360 mm

Width:400 mm

Weight:2314 kg

Min. Order:1 Piece

The 231/850-B-MB-H40-H78D 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 231/850-B-MB-H40-H78D bearing is a Double row spherical roller bearings, symmetric 3 ribs with an inner diameter of 850 mm , an outer diameter of 1360 mm, a width of 400 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 16099839 N, its static radial rated load is approximately 35999840 N. It uses CN standard radial clearance, OPEN type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

850 mm

Outside Diameter:

1360 mm

Thickness:

400 mm

Weight:

2314 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

16099839 N

Static load Capacity, Radial (Cor):

35999840 N

Fatigue Load Limit, Radial:

2339940 N

Reference speed (Grease rpm):

170

Limiting speed (Oil rpm):

362

Specifications:

Old Designations:

231/850B.MB-H40-H78D

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:

231..-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

231/850-B-MB-H40-H78D bearings ( 850 mm x 1360 mm x 400 mm) 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	231/850-B-MB-H40-H78D
Design Type	B = with fixed central rib
Bore Type	Z = Cylindrical bore
RIC	CN
Row	2
Bearing Type	Double row spherical roller bearings, symmetric 3 ribs
Manufacturer Part Code	231/850B.MB-H40-H78D
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
Seal type	OPEN
Relubrication	Standard
More	H40 = Without lubricating groove and holes
d φ Inside [inch]	33.465
D Φ Outside [inch]	53.543
B Width [inch]	15.748
n_B Reference speed (grease) [min^–1]	170
n_G Limiting speed (oil) [min^–1]	362
Weight [kg]	2314
r(min.) Chamfer [inch]	0.472
D₁ [inch]	47.134
d_s [inch]	0.492
n_s [inch]	0.925
C_r Radial Dynamic [lbf]	3619243
C_0r Radial static [lbf]	8092764
C_ur Radial Fatigue [lbf]	526018
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	35.354
D_a(max.) [inch]	51.653
r_a(max.) [mm]	2314
Calculation coefficient
e	0.29
Y₀	2.3
Y₁	2.35
Y₂	3.5

The 231/850-B-MB-H40-H78D 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 231/850-B-MB-H40-H78D ( 2314 kg Mass, ID: 850 mm OD: 1360 mm WD: 400 mm , 231..-B-MB Series , 2 Rows , CN Radial Clearance , GCr15, GCr15SiMn, SUJ2 Material , 16099839 Radial dynamic , 35999840 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 231/850-B-MB-H40-H78D. 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.

231/850-B-MB-H40-H78D Double Row Spherical Roller Bearings, Symmetric 3 Ribs

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