XSI140544N Crossed Roller Slewing Ring, Standard Series 14, Internal Teeth

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XSI140544N

Bore Diameter:444 mm

Outside Diameter:614 mm

Width:56 mm

Weight:43.2 kg

Min. Order:1 Piece

The XSI140544N Crossed roller slewing bearings are widely used in requiring high levels of rotational accuracy, rigidity, and load-bearing capacity, where installation space is often limited，such as industrial robots (joints, rotary seats), CNC machine tools (rotary tables, turrets), medical equipment (CT scanners, surgical robots), precision measuring instruments, radar turntables, and aerospace applications.

The XSI140544N bearing is a Crossed roller bearing, slewing ring standard series 14, internal teeth with an inner diameter of 444 mm , an outer diameter of 614 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 164000 N, its static radial rated load is approximately 345000 N. Its dynamic axial rated load is approximately 231000 N, its static axial rated load is approximately 700000 N. lip seals on both sides type, NBR (Nitrile Butadiene Rubber). together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Interchange code: XSI140544-N

Dimensions:

Inside Diameter:

444 mm

Outside Diameter:

614 mm

Thickness:

56 mm

Weight:

43.2 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

164000 N

Static load Capacity, Radial (Cor):

345000 N

Dynamic load Capacity, axial:

231000 N

Static load Capacity, axial:

700000 N

Specifications:

Old Designations:

XSI140544-N

Structure:

Crossed roller slewing bearings (Internal 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:

lip seals on both sides

Seal Material:

NBR (Nitrile Butadiene Rubber)

Rolling Mlement Material:

GCr15

Operating Temperature:

-25 to 80 °C

System of Measurement:

Metric

Series:

XSI14

Rolling Element:

Cylindrical Rollers

Gear Options:

internal

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

XSI140544N bearings ( 444 mm x 614 mm x 56 mm) have the advantages of The rollers are arranged in a cross pattern, resulting in minimal deformation, low rotational runout, and precise positioning, and are therefore widely used in the Industrial robots, machine tool rotary tables, medical devices, radar antennas and precision rotating equipment.

Part Number	XSI140544N
Bearing Type	Crossed roller bearing, slewing ring standard series 14, internal teeth
Series	XSI14
Equivalent	XSI140544-N
Interchangeable	INA XSI140544N
Load direction	axial, radial and tilting moment loads
Lubrication nipples	4 taper type lubrication nipples, DIN 71412-A M8x1,arranged evenly about the circumference
Seal type	lip seals on both sides
Seal Material	NBR (Nitrile Butadiene Rubber)
Rows NO.	One
m Weight [kg]	43.2
Performance Data
C_a Dynamic Axial	231000 N \| 231.000 KN
C_0a Static Axial	700000 N \| 700.000 KN
C_r Radial Dynamic	164000 N \| 164.000 KN
C_0r Radial Static	345000 N \| 345.000 KN
Operating temperature - T(min) [°C]	-25
Operating temperature - T(max) [°C]	80
Dimensions
D_a Φ Outside Diameter [mm]	614
D_a Tolerance [mm]	-IT7
D_aZT Centring outer ring [mm]	614
d_{i φ Bore Diameter [mm]}	444
D_i Inner diameter outer ring [mm]	545
D_i Tolerance [mm]	+0.5
d_a Outside diameter inner ring [mm]	541
d_a Tolerance [mm]	-IT7
Height - H [mm]	56
T Length centering inner ring [mm]	10
t Length centering inner ring [mm]	4.5
h_a Width outer ring [mm]	44.5
Fixing holes
L_a Pitchcircle diameter fixing holes outer ring [mm]	590
n_a Number of fixing holes in outer ring	32
L_i Pitchcircle diameter fixing holes inner ring [mm]	505
n_i Number of fixing holes in inner ring	32
d_B Fixing bore [mm]	14
Fr _{zul Max} Radial load fixing screws	132200 N \| 132.200 KN
t_G Thread depth [mm]	20
Gearing
Gearing type	N = Normalized gear teeth on bearing ring
Gear teeth type	internal
Gear rings material	C45N or 42CrMo4V65 (suffix N)
b Width gearing [mm]	44.5
d₀ Pitch circle diameter gearing [mm]	456
m Module of gearing [mm]	6
z Number of teeth	76
F_{z norm} Tooth force	23700 N \| 23.700 KN
F_{z max} Tooth force	35000 N \| 35.000 KN
Designation Breakdown
VSP min preload [mm]	0.01
VSP max preload [mm]	0.03

The XSI140544N Crossed roller slewing bearings mainly consist of an inner ring, an outer ring, cross-arranged cylindrical rollers, spacers, and a sealing device. The rollers are arranged at 90° intervals within the raceway, enabling a single-row structure to withstand multi-directional loads.

The cross-arrangement of the rollers in crossed roller slewing bearings allows them to simultaneously withstand radial loads, axial loads, and overturning moments. They exhibit extremely high rigidity and a precision grade of P5 or higher. Their compact structure and easy installation significantly save installation space.

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High quality XSI140544N ( 43.2 kg Mass, ID: 444 mm OD: 614 mm WD: 56 mm , XSI14 Series , One Rows , P5, P6, P0 Accuracy Class , 50Mn,42CrMo Material , 164000 Radial dynamic , 345000 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. XSI140544N. 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.

XSI140544N Crossed Roller Slewing Ring, Standard Series 14, Internal Teeth

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