- Product Details
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Quick Details
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Brand Name:
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SEMRI
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Model Number:
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132.45.2500
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Place of Origin:
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Shandong, China
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Product Name:
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Heavy Duty Excavator Turntable Slewing Ring Bearing 132.45.2500
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Material:
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50Mn/42CrMo
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Dimension:
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2279x2721x231 mm
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Rolling elements:
-
Steel ball / Cylinder Roller
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Cage Material:
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Nylon/ steel /copper
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Mounting hole:
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Through hole/Tapped hole
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Modulation hardness:
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229-269HB/Customized
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Gear type:
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No gear ,Internal gear , External gear.
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Embellish grease:
-
EP2 lithium lubricating grease
-
Application:
-
Ladle turret,Stacker crane,Bucket wheel machine,excavator
Quick Details
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Applicable Industries:
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Hotels, Garment Shops, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Restaurant, Home Use, Retail, Food Shop, Printing Shops, Construction works , Energy & Mining, Food & Beverage Shops, Advertising Company, Indurstry
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Feature:
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CROSS ROLLER
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Seals Type:
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Open
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Brand Name:
-
SEMRI
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Model Number:
-
132.45.2500
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Place of Origin:
-
Shandong, China
-
Product Name:
-
Heavy Duty Excavator Turntable Slewing Ring Bearing 132.45.2500
-
Material:
-
50Mn/42CrMo
-
Dimension:
-
2279x2721x231 mm
-
Rolling elements:
-
Steel ball / Cylinder Roller
-
Cage Material:
-
Nylon/ steel /copper
-
Mounting hole:
-
Through hole/Tapped hole
-
Modulation hardness:
-
229-269HB/Customized
-
Gear type:
-
No gear ,Internal gear , External gear.
-
Embellish grease:
-
EP2 lithium lubricating grease
-
Application:
-
Ladle turret,Stacker crane,Bucket wheel machine,excavator
Product Description
2279x2721x231 Heavy Duty Excavator Turntable Slewing Ring Bearing 132.45.2500
A turret bearing or slewing ring bearing is a rotational rolling-element bearing or plain bearing that typically supports a heavy but slow-turning or slow-oscillating load, often a horizontal platform such as a conventional crane, a swing yarder, or the wind-facing platform of a horizontal-axis windmill. (To "slew" means to turn without change of place.)
Compared to other rolling-element bearings, slewing bearings are thin in section and are often made in diameters of a metre or more; the slewing bearings on the Falkirk Wheel are 4 metre diameter and fit over a 3.5 metre axle. Slewing bearings resemble oversize aircraft control surface bearings.
Slewing bearings often use two rows of rolling elements. They often use three race elements, such as an inner ring and two outer ring "halves" that clamp together axially.
Slewing bearings are often made with gear teeth integral with the inner or outer race, used to drive the platform relative to the base.
As for other bearings that reciprocate, rather than rotating continuously, lubrication can be difficult. The oil wedge built up in a continuously rotating bearing is disrupted by the stop start motion of slewing. Instead, a hydrostatic bearing with pumped oil flow may be used.
Features of Slewing bearings:
1.with excellent rotational accuracy
2. Installing simplifies operation
3. Bear large axial and radial loads
4.Significant savings in installation space
5. High speed capability is limited to changes .
6. Shaft length and reduce processing costs, the geometry of thermal expansion
7. Nylon spacer, low inertia, low starting torque, easy to control angle indexing
8. Optimization of preload, rigidity, high precision guide rollers running
9. Carburizing steel provides excellent impact resistance and surface abrasion resistance
10. Simple but adequate lubrication
Compared to other rolling-element bearings, slewing bearings are thin in section and are often made in diameters of a metre or more; the slewing bearings on the Falkirk Wheel are 4 metre diameter and fit over a 3.5 metre axle. Slewing bearings resemble oversize aircraft control surface bearings.
Slewing bearings often use two rows of rolling elements. They often use three race elements, such as an inner ring and two outer ring "halves" that clamp together axially.
Slewing bearings are often made with gear teeth integral with the inner or outer race, used to drive the platform relative to the base.
As for other bearings that reciprocate, rather than rotating continuously, lubrication can be difficult. The oil wedge built up in a continuously rotating bearing is disrupted by the stop start motion of slewing. Instead, a hydrostatic bearing with pumped oil flow may be used.
Features of Slewing bearings:
1.with excellent rotational accuracy
2. Installing simplifies operation
3. Bear large axial and radial loads
4.Significant savings in installation space
5. High speed capability is limited to changes .
6. Shaft length and reduce processing costs, the geometry of thermal expansion
7. Nylon spacer, low inertia, low starting torque, easy to control angle indexing
8. Optimization of preload, rigidity, high precision guide rollers running
9. Carburizing steel provides excellent impact resistance and surface abrasion resistance
10. Simple but adequate lubrication
|
Type |
• Single row four point contact ball slewing bearing
• Single row crossed cylindrical roller slewing bearings • Double row ball slewing bearings •Double row Roller/ball combination slewing bearing •Three-Row Roller Slew Ring Bearing |
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Rollng elements
|
Steel ball / Cylinder Roller
|
|
Rollng elements Material
|
GCr5/GCr15SiMn/Customized
|
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Bearing Material
|
50Mn/42CrMo/42CrMo4V /Customized
|
|
Cage Material
|
Nylon/ steel /copper
|
|
Structure |
taper pin , Mounting holes,Inner ring ,grease fitting,load plug, seals , roller ,spacer balls or separators
|
|
Outer diameter
|
50-10000mm
|
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Bore size
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50-10000mm
|
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Mounting hole
|
Through hole/Tapped hole
|
|
Raceway hardness
|
55-62HRC
|
|
Inner and outer ring
modulation hardness |
229-269HB/Customized
|
|
Gear type
|
No gear ,Internal gear , External gear.
|
|
Embellish grease
|
EP2 lithium lubricating grease
|
|
Certificate
|
ABS.BV,DNV,ISO9001,GL
|
|
Application area |
Ladle turret,Stacker crane,Bucket wheel machine,Solar heliostat Tracking System,port crane, Cabling machine,tower crane , offshore
platform,ferris wheel, Palletizing robot,Rotary metallurgical furnace,can packing machine,Wind blade transporter,shield tunneling machine,tube push bench,excavator |
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Brand
|
SEMRI
|
Specification
|
Type
|
d(mm)
|
D(mm)
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T(mm)
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Mass(Kg)
|
|
132.25.500
|
366
|
634
|
148
|
224
|
|
132.25.560
|
426
|
694
|
148
|
240
|
|
132.25.630
|
496
|
764
|
148
|
270
|
|
132.25.700
|
576
|
844
|
148
|
300
|
|
132.32.800
|
636
|
964
|
182
|
500
|
|
132.32.900
|
736
|
1064
|
182
|
600
|
|
132.32.1000
|
836
|
1164
|
182
|
680
|
|
132.32.1120
|
950
|
1284
|
182
|
820
|
|
132.40.1250
|
1055
|
1445
|
220
|
1200
|
|
132.40.1400
|
1205
|
1595
|
220
|
1300
|
|
132.40.1600
|
1405
|
1795
|
220
|
1520
|
|
132.40.1800
|
1605
|
1995
|
220
|
1750
|
|
132.45.2000
|
1779
|
2221
|
231
|
2400
|
|
132.45.2240
|
2019
|
2461
|
231
|
2700
|
|
132.45.2240.03
|
2019
|
2556
|
231
|
|
|
132.45.2500
|
2279
|
2721
|
231
|
3000
|
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