238/670CAKMA/W20 Spherical Roller Bearings, Machined Brass Cage, Tapered Bore

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238/670CAKMA/W20

Bore Diameter:670 mm

Outside Diameter:820 mm

Width:112 mm

Weight:130 kg

Min. Order:1 Piece

The 238/670CAKMA/W20 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 238/670CAKMA/W20 bearing is a Spherical roller bearings, double row with an inner diameter of 670 mm , an outer diameter of 820 mm, a width of 112 mm. High-carbon chromium steel rings, High-carbon chromium steel rolling mlement. Its dynamic radial rated load is approximately 2249249 N, its static radial rated load is approximately 6399182 N. It uses Normal standard radial clearance, open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

670 mm

Outside Diameter:

820 mm

Thickness:

112 mm

Weight:

130 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

2249249 N

Static load Capacity, Radial (Cor):

6399182 N

Reference speed (Grease rpm):

353

Limiting speed (Oil rpm):

690

Specifications:

Structure:

Spherical Roller Bearings

Number of Rows:

Radial Clearance Trade No.:

Normal

Bearing Material:

High-carbon chromium steel

Cage Type:

MA = Machined brass cage, outer ring centred

Seals Type:

open

Rolling Mlement Material:

High-carbon chromium steel

Bore Type:

K = Tapered bore, taper 1:12

Operating Temperature:

-30 to +200 °C

System of Measurement:

Metric

Series:

238..-CAKMA/W20

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

238/670CAKMA/W20 bearings ( 670 mm x 820 mm x 112 mm) have the advantages of Self-aligning, high load-bearing capacity, and impact resistant, and are therefore widely used in the Mining machinery, metallurgical equipment, papermaking machinery, vibrating screens, wind turbines, and large industrial gearboxes.

Part Number	238/670CAKMA/W20
Manufacturer Part Code	238/670CAKMA/W20
Internal design	CAMA = Bearing with symmetrical rollers,retaining flanges on the inner ring.Guide ring centered on the inner ring, one-piece machined brass double pronged cage of the double pronged type centered in the outer ring
Bearing Type	Spherical roller bearings, double row
m Weight [lb]	286.598
Seal type	open
Series	238..-CAKMA/W20
Cage	MA = Machined brass cage, outer ring centred
Lubrication	W20 = Three lubrication holes in the outer ring
Bore Type	K = Tapered bore, taper 1:12
Radial internal clearance	Normal
Units	Metric
C_r Dynamic Radial [lbf]	505631
C_0r Static Radial [lbf]	1438536
P_u Fatigue Radial [lbf]	98873
Operating temperature - T(min) [°C]	-30
Operating temperature - T(max) [°C]	+200
n_B Speed ratings (grease) [rpm]	353
n_G Speed ratings (oil) [rpm]	690
Heat stabilization	392 °F (200 °C)
Dimension
d φ Inside [inch]	26.378
D Φ Outside [inch]	32.283
B Width [inch]	4.409
K [inch]	0.354
d₂ [inch]	28.346
D₁ [inch]	30.630
r_a(max.) Fillet [inch]	0.118
r₁,r₂(min.) Fillet [inch]	0.157
Abutment dimensions
d_a(min.) [inch]	26.968
D_a(max.) [inch]	31.693
Calculation factor
e	0.11
Y₁	6.1
Y₂	9.1
Y₀	6.3

The 238/670CAKMA/W20 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 238/670CAKMA/W20 ( 130 kg Mass, ID: 670 mm OD: 820 mm WD: 112 mm , 238..-CAKMA/W20 Series , 2 Rows , Normal Radial Clearance , High-carbon chromium steel Material , 2249249 Radial dynamic , 6399182 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 238/670CAKMA/W20. 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.

238/670CAKMA/W20 Spherical Roller Bearings, Machined Brass Cage, Tapered Bore

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