VSU 20 0644 Four Point Contact Slewing Ring, Standard Series 20, Without Gear Teeth

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VSU 20 0644

Bore Diameter:572 mm

Outside Diameter:716 mm

Width:56 mm

Weight:44.41 kg

Min. Order:1 Piece

The VSU 20 0644 Single-row four-point contact ball slewing bearings are widely used in rotational applications requiring the ability to withstand combined loads (axial force, radial force, and overturning moment) and demanding a compact structure and low self-weight, such as engineering machinery (truck cranes, excavators), wind power generation (yaw bearings), port machinery, photovoltaic tracking systems, robotics, and medical devices.

The VSU 20 0644 bearing is a Four point contact bearing, slewing ring standard series 20, without gear teeth with an inner diameter of 572 mm , an outer diameter of 716 mm, a width of 56 mm. It typically uses P5, P6, P0 grade precision tolerances and 50Mn,42CrMo rings, GCr15 rolling mlement. It primarily bears axial, radial and tilting moment loads, Its dynamic radial rated load is approximately 147000 N, its static radial rated load is approximately 475000 N. Its dynamic axial rated load is approximately 162000 N, its static axial rated load is approximately 1040000 N. sealed on both sides type, NBR (Nitrile Butadiene Rubber). together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Interchange code: VSU200644

Dimensions:

Inside Diameter:

572 mm

Outside Diameter:

716 mm

Thickness:

56 mm

Weight:

44.41 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

147000 N

Static load Capacity, Radial (Cor):

475000 N

Dynamic load Capacity, axial:

162000 N

Static load Capacity, axial:

1040000 N

Specifications:

Structure:

Four point contact ball slewing bearings (No gear type)

Number of Rows:

One

Precision Rating:

P5, P6, P0

Load Direction:

axial, radial and tilting moment loads

Bearing Material:

50Mn,42CrMo

Seals Type:

sealed on both sides

Seal Material:

NBR (Nitrile Butadiene Rubber)

Rolling Mlement Material:

GCr15

Operating Temperature:

-25 to 80 °C

System of Measurement:

Metric

Series:

VSU20

Rolling Element:

Balls

Gear Options:

without

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

VSU 20 0644 bearings ( 572 mm x 716 mm x 56 mm) have the advantages of Compact structure, lightweight, small footprint, high cost-performance ratio, and are therefore widely used in the Robots, construction machinery, wind turbines, radar antennas, and various rotary worktables.

Part Number	VSU 20 0644
Bearing Type	Four point contact bearing, slewing ring standard series 20, without gear teeth
Series	VSU20
Equivalent	VSU200644
Interchangeable	INA VSU 20 0644
Load direction	axial, radial and tilting moment loads
Lubrication nipples	4 taper type lubrication nipples, DIN 71412-A S8x1,arranged evenly about the circumference
Seal type	sealed on both sides
Seal Material	NBR (Nitrile Butadiene Rubber)
Rows NO.	One
m Weight [kg]	44.41
Performance Data
C_a Dynamic Axial	162000 N \| 162.000 KN
C_0a Static Axial	1040000 N \| 1040.000 KN
C_r Radial Dynamic	147000 N \| 147.000 KN
C_0r Radial Static	475000 N \| 475.000 KN
Operating temperature - T(min) [°C]	-25
Operating temperature - T(max) [°C]	80
Dimensions
D_a Φ Outside Diameter [mm]	716
D_a Tolerance [mm]	-0.6
d_{i φ Bore Diameter [mm]}	572
d_i Tolerance [mm]	+0.6
D_i Inner diameter outer ring [mm]	645.5
D_i Tolerance [mm]	+0.6
d_a Outside diameter inner ring [mm]	642.5
d_a Tolerance [mm]	-0.6
Height - H [mm]	56
h_a Width outer ring [mm]	44.5
h_i Height of inner ring [mm]	44.5
Fixing holes
L_a Pitchcircle diameter fixing holes outer ring [mm]	690
n_a Number of fixing holes in outer ring	36
L_i Pitchcircle diameter fixing holes inner ring [mm]	598
n_i Number of fixing holes in inner ring	36
d_B Fixing bore [mm]	14
Fr _{zul Max} Radial load fixing screws	148700 N \| 148.700 KN
Gearing
Gear teeth type	without
Designation Breakdown
Radial internal clearance	Standard_SL = Standard radial clearance 0 to 0.3 and axial tilting clearance 0 to 0.53

The VSU 20 0644 Single-row four-point contact ball slewing bearings mainly consist of an inner ring, an outer ring, steel balls, spacers, and a sealing device. The raceways are peach-shaped or arc-shaped, and the steel balls form four-point contact with the inner and outer ring raceways. Gears can be integrated into the inner and outer rings.

Single-row four-point contact ball slewing bearings feature a low axial height and light weight due to their single-row structure. One bearing can simultaneously withstand axial loads, radial loads, and overturning moments. The four-point contact design provides high load-bearing capacity, good rigidity, and easy installation and maintenance.

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High quality VSU 20 0644 ( 44.41 kg Mass, ID: 572 mm OD: 716 mm WD: 56 mm , VSU20 Series , One Rows , P5, P6, P0 Accuracy Class , 50Mn,42CrMo Material , 147000 Radial dynamic , 475000 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. VSU 20 0644. 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.

VSU 20 0644 Four Point Contact Slewing Ring, Standard Series 20, Without Gear Teeth

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