240/850-B-K30-MB-C3 Spherical Roller Bearings With Central Rib Tapered Bore (K30 = Taper 1:30)

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240/850-B-K30-MB-C3

Bore Diameter:850 mm

Outside Diameter:1220 mm

Width:365 mm

Weight:1420 kg

Min. Order:1 Piece

The 240/850-B-K30-MB-C3 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 240/850-B-K30-MB-C3 bearing is a Spherical roller bearings With central rib tapered bore (K30 = taper 1:30) with an inner diameter of 850 mm , an outer diameter of 1220 mm, a width of 365 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 12899936 N, its static radial rated load is approximately 31999929 N. It uses C3 standard radial clearance, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

850 mm

Outside Diameter:

1220 mm

Thickness:

365 mm

Weight:

1420 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

12899936 N

Static load Capacity, Radial (Cor):

31999929 N

Fatigue Load Limit, Radial:

2059909 N

Reference speed (Grease rpm):

169

Limiting speed (Oil rpm):

476

Specifications:

Old Designations:

240/850BK30MBC3

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:

K30 = Tapered bore (K30 = taper 1:30)

Operating Temperature:

-30 to +200 °C

System of Measurement:

Metric

Series:

240..-B-K30-MB-C3

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

240/850-B-K30-MB-C3 bearings ( 850 mm x 1220 mm x 365 mm) have the advantages of High load-bearing capacity, impact resistant, self-aligning, and easy to install, and are therefore widely used in the Wind turbine main shaft, large ship main shaft, giant construction machinery.

Part Number	240/850-B-K30-MB-C3
Design drawing	2
Design Type	B = with fixed central rib
Bore Type	K30 = Tapered bore (K30 = taper 1:30)
RIC	C3
Row	2
Bearing Type	Spherical roller bearings With central rib tapered bore (K30 = taper 1:30)
Manufacturer Part Code	240/850BK30MBC3
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
d φ Inside [inch]	33.465
D Φ Outside [inch]	48.031
B Width [inch]	14.370
n_B Reference speed (grease) [min^–1]	169
n_G Limiting speed (oil) [min^–1]	476
Weight [kg]	1420
r(min.) Chamfer [inch]	0.295
D₁ [inch]	43.027
d_s [inch]	0.492
n_s [inch]	0.925
C_r Radial Dynamic [lbf]	2899905
C_0r Radial static [lbf]	7193584
C_ur Radial Fatigue [lbf]	463067
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	34.567
D_a(max.) [inch]	46.929
r_a(max.) [mm]	1420
Calculation coefficient
e	0.29
Y₀	2.28
Y₁	2.33
Y₂	3.47

The 240/850-B-K30-MB-C3 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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240/850-B-K30-MB-C3 Spherical Roller Bearings With Central Rib Tapered Bore (K30 = Taper 1:30)

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