XA120235-N Crossed Roller Slewing Ring Bearing, External Gear Teeth, Preloaded

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XA120235-N

Bore Diameter:171 mm

Outside Diameter:318.8 mm

Width:40 mm

Weight:13.21 kg

Min. Order:1 Piece

The XA120235-N 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 XA120235-N bearing is a Crossed roller slewing ring bearing, external gear teeth, preloaded with an inner diameter of 171 mm , an outer diameter of 318.8 mm, a width of 40 mm. It typically uses P5, P6, P0 grade precision tolerances and 50Mn,42CrMo rings, GCr15 rolling mlement. It primarily bears high radial forces and moderate axial and tilting moment loads, Its dynamic radial rated load is approximately 92000 N, its static radial rated load is approximately 138000 N. Its dynamic axial rated load is approximately 129000 N, its static axial rated load is approximately 280000 N. sealed type, NBR (Nitrile Butadiene Rubber). together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Interchange code: XA 12 0235 N

Dimensions:

Inside Diameter:

171 mm

Outside Diameter:

318.8 mm

Thickness:

40 mm

Weight:

13.21 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

92000 N

Static load Capacity, Radial (Cor):

138000 N

Dynamic load Capacity, axial:

129000 N

Static load Capacity, axial:

280000 N

Specifications:

Structure:

Crossed roller slewing bearings (External gear type)

Number of Rows:

One

Precision Rating:

P5, P6, P0

Load Direction:

high radial forces and moderate axial and tilting moment loads

Bearing Material:

50Mn,42CrMo

Seals Type:

sealed

Seal Material:

NBR (Nitrile Butadiene Rubber)

Rolling Mlement Material:

GCr15

Operating Temperature:

-30 to 80 °C

System of Measurement:

Metric

Series:

Rolling Element:

Cylindrical Rollers

Gear Options:

external

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

XA120235-N bearings ( 171 mm x 318.8 mm x 40 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	XA120235-N
Bearing Type	Crossed roller slewing ring bearing, external gear teeth, preloaded
Series	XA
Equivalent	XA 12 0235 N
Interchangeable	INA XA120235-N
Load direction	high radial forces and moderate axial and tilting moment loads
Lubrication nipples	2 taper type lubrication nipples, DIN 71412-A M10x1, arranged evenly about the circumference
Seal type	sealed
Seal Material	NBR (Nitrile Butadiene Rubber)
Rows NO.	One
m Weight [kg]	13.21
Performance Data
C_a Dynamic Axial	129000 N \| 129.000 KN
C_0a Static Axial	280000 N \| 280.000 KN
C_r Radial Dynamic	92000 N \| 92.000 KN
C_0r Radial Static	138000 N \| 138.000 KN
Operating temperature - T(min) [°C]	-30
Operating temperature - T(max) [°C]	80
Dimensions
d₁ φ Inside Diameter [mm]	171
D_a Φ Outside Diameter [mm]	318.8
d_{i φ Bore Diameter [mm]}	171
D_i Inner diameter outer ring [mm]	236
D_i Tolerance [mm]	+0.2/-0.2
D_iZT Diameter centring outer ring [mm]	238
D_iZT Tolerance [mm]	+IT8
d_a Outside diameter inner ring [mm]	234
d_a Tolerance [mm]	+0.2/-0.2
Height - H [mm]	40
h Height of individual ring [mm]	35
T Length centering inner ring [mm]	2.6
t Length centering inner ring [mm]	6
h_a Width outer ring [mm]	35
Fixing holes
L_a Pitchcircle diameter fixing holes outer ring [mm]	275
n_a Number of fixing holes in outer ring	12
L_i Pitchcircle diameter fixing holes inner ring [mm]	195
n_i Number of fixing holes in inner ring	12
d_B Fixing bore [mm]	13
Fr _{zul Max} Radial load fixing screws	53000 N \| 53.000 KN
Gearing
Gearing type	N = Normalized gear teeth on bearing ring
Gear teeth type	external
Gear rings material	C45N or 42CrMo4V65 (suffix N)
b Width gearing [mm]	35
d₀ Pitch circle diameter gearing [mm]	312
m Module of gearing [mm]	4
z Number of teeth	78
F_{z norm} Tooth force	11000 N \| 11.000 KN
F_{z max} Tooth force	16100 N \| 16.100 KN
Designation Breakdown
VSP max preload [mm]	0.02

The XA120235-N 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 XA120235-N ( 13.21 kg Mass, ID: 171 mm OD: 318.8 mm WD: 40 mm , XA Series , One Rows , P5, P6, P0 Accuracy Class , 50Mn,42CrMo Material , 92000 Radial dynamic , 138000 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. XA120235-N. 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.

XA120235-N Crossed Roller Slewing Ring Bearing, External Gear Teeth, Preloaded

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