240/630 BC Spherical Roller Bearings, Machined Metal

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240/630 BC

Bore Diameter:630 mm

Outside Diameter:920 mm

Width:290 mm

Weight:623 kg

Min. Order:1 Piece

The 240/630 BC 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 240/630 BC bearing is a Spherical roller bearings, double row with an inner diameter of 630 mm , an outer diameter of 920 mm, a width of 290 mm. High-carbon chromium steel rings, High-carbon chromium steel rolling mlement. Its dynamic radial rated load is approximately 9301909 N, its static radial rated load is approximately 17594865 N. It uses Normal standard radial clearance, open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

630 mm

Outside Diameter:

920 mm

Thickness:

290 mm

Weight:

623 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

9301909 N

Static load Capacity, Radial (Cor):

17594865 N

Reference speed (Grease rpm):

Limiting speed (Oil rpm):

Specifications:

Old Designations:

240/630BC

Structure:

Spherical Roller Bearings

Number of Rows:

Radial Clearance Trade No.:

Normal

Bearing Material:

High-carbon chromium steel

Cage Type:

Machined metal

Seals Type:

open

Rolling Mlement Material:

High-carbon chromium steel

Bore Type:

Z = cylindrical bore

Operating Temperature:

-30 to +200 °C

System of Measurement:

Metric

Series:

240..-BC

Rolling Element:

spherical rollers

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

200 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

240/630 BC bearings ( 630 mm x 920 mm x 290 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	240/630 BC
Manufacturer Part Code	240/630BC
Internal design	BC = Bearing for wind turbine main shafts with roller-guided cast iron cage
Bearing Type	Spherical roller bearings, double row
m Weight [lb]	1373.466
Seal type	open
Series	240..-BC
Cage	Machined metal
Bore Type	Z = cylindrical bore
Radial internal clearance	Normal
Units	Metric
C_r Dynamic Radial [lbf]	2091069
C_0r Static Radial [lbf]	3955325
P_u Fatigue Radial [lbf]	264100
Operating temperature - T(min) [°C]	-30
Operating temperature - T(max) [°C]	+200
n_B Speed ratings (grease) [rpm]	19
n_G Speed ratings (oil) [rpm]	43
Heat stabilization	392 °F (200 °C)
Dimension
d φ Inside [inch]	24.803
D Φ Outside [inch]	36.220
B Width [inch]	11.417
b [inch]	2.224
K [inch]	0.591
d₂ [inch]	28.268
D₁ [inch]	32.598
r_a(max.) Fillet [inch]	0.236
r₁,r₂(min.) Fillet [inch]	0.295
Angular misalignment	2 degrees
Abutment dimensions
d_a(min.) [inch]	25.905
D_a(max.) [inch]	35.118
Calculation factor
e	0.3
Y₁	2.3
Y₂	3.4
Y₀	2.2

The 240/630 BC 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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