248/800 CAMA/W20 Spherical Roller Bearings, Machined Brass Cage

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248/800 CAMA/W20

Bore Diameter:800 mm

Outside Diameter:980 mm

Width:180 mm

Weight:300 kg

Min. Order:1 Piece

The 248/800 CAMA/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 248/800 CAMA/W20 bearing is a Spherical roller bearings, double row with an inner diameter of 800 mm , an outer diameter of 980 mm, a width of 180 mm. High-carbon chromium steel rings, High-carbon chromium steel rolling mlement. Its dynamic radial rated load is approximately 4774857 N, its static radial rated load is approximately 12894766 N. It uses Normal standard radial clearance, open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

800 mm

Outside Diameter:

980 mm

Thickness:

180 mm

Weight:

300 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

4774857 N

Static load Capacity, Radial (Cor):

12894766 N

Reference speed (Grease rpm):

300

Limiting speed (Oil rpm):

534

Specifications:

Old Designations:

248/800CAMA/W20

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:

Z = cylindrical bore

Operating Temperature:

-30 to +200 °C

System of Measurement:

Metric

Series:

248..-CAMA/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

248/800 CAMA/W20 bearings ( 800 mm x 980 mm x 180 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	248/800 CAMA/W20
Manufacturer Part Code	248/800CAMA/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]	661.380
Seal type	open
Series	248..-CAMA/W20
Cage	MA = Machined brass cage, outer ring centred
Lubrication	W20 = Three lubrication holes in the outer ring
Bore Type	Z = cylindrical bore
Radial internal clearance	Normal
Units	Metric
C_r Dynamic Radial [lbf]	1073387
C_0r Static Radial [lbf]	2898743
P_u Fatigue Radial [lbf]	185403
Operating temperature - T(min) [°C]	-30
Operating temperature - T(max) [°C]	+200
n_B Speed ratings (grease) [rpm]	300
n_G Speed ratings (oil) [rpm]	534
Heat stabilization	392 °F (200 °C)
Dimension
d φ Inside [inch]	31.496
D Φ Outside [inch]	38.583
B Width [inch]	7.087
K [inch]	0.472
d₂ [inch]	34.055
D₁ [inch]	36.260
r_a(max.) Fillet [inch]	0.157
r₁,r₂(min.) Fillet [inch]	0.197
Abutment dimensions
d_a(min.) [inch]	32.205
D_a(max.) [inch]	37.874
Calculation factor
e	0.15
Y₁	4.5
Y₂	6.7
Y₀	4.5

The 248/800 CAMA/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 248/800 CAMA/W20 ( 300 kg Mass, ID: 800 mm OD: 980 mm WD: 180 mm , 248..-CAMA/W20 Series , 2 Rows , Normal Radial Clearance , High-carbon chromium steel Material , 4774857 Radial dynamic , 12894766 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 248/800 CAMA/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.

248/800 CAMA/W20 Spherical Roller Bearings, Machined Brass Cage

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