240/630-B-K30-MB Spherical Roller Bearings With Central Rib Tapered Bore (K30 = Taper 1:30)

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240/630-B-K30-MB

Bore Diameter:630 mm

Outside Diameter:920 mm

Width:290 mm

Weight:649 kg

Min. Order:1 Piece

The 240/630-B-K30-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 240/630-B-K30-MB bearing is a Spherical roller bearings With central rib tapered bore (K30 = taper 1:30) with an inner diameter of 630 mm , an outer diameter of 920 mm, a width of 290 mm. GCr15, GCr15SiMn, SUJ2 rings, GCr15, SUJ2 rolling mlement. Its dynamic radial rated load is approximately 7999915 N, its static radial rated load is approximately 18999930 N. It uses CN standard radial clearance, 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:

649 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

7999915 N

Static load Capacity, Radial (Cor):

18999930 N

Fatigue Load Limit, Radial:

1349934 N

Reference speed (Grease rpm):

252

Limiting speed (Oil rpm):

478

Specifications:

Old Designations:

240/630BK30MB

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

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

240/630-B-K30-MB 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-B-K30-MB
Design drawing	2
Design Type	B = with fixed central rib
Bore Type	K30 = Tapered bore (K30 = taper 1:30)
RIC	CN
Row	2
Bearing Type	Spherical roller bearings With central rib tapered bore (K30 = taper 1:30)
Manufacturer Part Code	240/630BK30MB
Cage	MB = Solid brass cage, guided on inner ring
Measurement	Metric
d φ Inside [inch]	24.803
D Φ Outside [inch]	36.220
B Width [inch]	11.417
n_B Reference speed (grease) [min^–1]	252
n_G Limiting speed (oil) [min^–1]	478
Weight [kg]	649
r(min.) Chamfer [inch]	0.295
D₁ [inch]	32.201
d_s [inch]	0.492
n_s [inch]	0.925
C_r Radial Dynamic [lbf]	1798380
C_0r Radial static [lbf]	4271184
C_ur Radial Fatigue [lbf]	303465
Temperature - T(min)[°C]	-30
Temperature - T(max)[°C]	+200
Mounting dimensions
d_a(min.) [inch]	25.905
D_a(max.) [inch]	35.118
r_a(max.) [mm]	649
Calculation coefficient
e	0.31
Y₀	2.16
Y₁	2.21
Y₂	3.29

The 240/630-B-K30-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 240/630-B-K30-MB ( 649 kg Mass, ID: 630 mm OD: 920 mm WD: 290 mm , 240..-B-K30-MB Series , 2 Rows , CN Radial Clearance , GCr15, GCr15SiMn, SUJ2 Material , 7999915 Radial dynamic , 18999930 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 240/630-B-K30-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.

240/630-B-K30-MB Spherical Roller Bearings With Central Rib Tapered Bore (K30 = Taper 1:30)

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