XI120288-N-ZT Crossed Roller Slewing Ring Bearing, Internal Gear Teeth, Preloaded

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XI120288-N-ZT

Bore Diameter:216 mm

Outside Diameter:338 mm

Width:38 mm

Weight:12.1 kg

Min. Order:1 Piece

The XI120288-N-ZT 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 XI120288-N-ZT bearing is a Crossed roller slewing ring bearing, internal gear teeth, preloaded with an inner diameter of 216 mm , an outer diameter of 338 mm, a width of 38 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 96000 N, its static radial rated load is approximately 153000 N. Its dynamic axial rated load is approximately 135000 N, its static axial rated load is approximately 310000 N. sealed type, NBR (Nitrile Butadiene Rubber). together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

216 mm

Outside Diameter:

338 mm

Thickness:

38 mm

Weight:

12.1 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

96000 N

Static load Capacity, Radial (Cor):

153000 N

Dynamic load Capacity, axial:

135000 N

Static load Capacity, axial:

310000 N

Specifications:

Structure:

Crossed roller slewing bearings (Internal 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:

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

XI120288-N-ZT bearings ( 216 mm x 338 mm x 38 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	XI120288-N-ZT
Bearing Type	Crossed roller slewing ring bearing, internal gear teeth, preloaded
Series	XI
Interchangeable	INA XI120288-N-ZT
Load direction	high radial forces and moderate axial and tilting moment loads
Lubrication nipples	taper type lubrication nipples, DIN 71412, arranged evenly about the circumference and partially recessed
Seal type	sealed
Seal Material	NBR (Nitrile Butadiene Rubber)
Rows NO.	One
m Weight [kg]	12.1
Performance Data
C_a Dynamic Axial	135000 N \| 135.000 KN
C_0a Static Axial	310000 N \| 310.000 KN
C_r Radial Dynamic	96000 N \| 96.000 KN
C_0r Radial Static	153000 N \| 153.000 KN
Operating temperature - T(min) [°C]	-30
Operating temperature - T(max) [°C]	80
Dimensions
D_a Φ Outside Diameter [mm]	340
D_aZT Centring outer ring [mm]	338
D_aZT Tolerance [mm]	-IT8
d_{i φ Bore Diameter [mm]}	216
D_i Inner diameter outer ring [mm]	289
d_a Outside diameter inner ring [mm]	287
d_aZT Diameter centring inner ring [mm]	285
d_aZT Tolerance [mm]	-IT8
Height - H [mm]	38
h Height of individual ring [mm]	33
T Length centering inner ring [mm]	5
t Length centering inner ring [mm]	2.5
u Protrusion lubrication nipple [mm]	6
h_a Width outer ring [mm]	33
Fixing holes
L_a Pitchcircle diameter fixing holes outer ring [mm]	324
n_a Number of fixing holes in outer ring	20
L_i Pitchcircle diameter fixing holes inner ring [mm]	252
n_i Number of fixing holes in inner ring	20
d_B Fixing bore [mm]	9
Fr _{zul Max} Radial load fixing screws	45500 N \| 45.500 KN
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]	34
d₀ Pitch circle diameter gearing [mm]	224
m Module of gearing [mm]	4
z Number of teeth	56
F_{z norm} Tooth force	12300 N \| 12.300 KN
F_{z max} Tooth force	17800 N \| 17.800 KN
Designation Breakdown
Centering	ZT = Centering on inner and outer ring
VSP max preload [mm]	0.02

The XI120288-N-ZT 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 XI120288-N-ZT ( 12.1 kg Mass, ID: 216 mm OD: 338 mm WD: 38 mm , XI Series , One Rows , P5, P6, P0 Accuracy Class , 50Mn,42CrMo Material , 96000 Radial dynamic , 153000 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. XI120288-N-ZT. 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.

XI120288-N-ZT Crossed Roller Slewing Ring Bearing, Internal Gear Teeth, Preloaded

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