ZKLDF120-B Bore 120 Mm, Axial Angular Contact Ball Bearings, Double Direction, For The Highest Speeds

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ZKLDF120-B

Bore Diameter:120 mm

Outside Diameter:210 mm

Width:40 mm

Weight:4.8 kg

Min. Order:1 Piece

The ZKLDF120-B Rotary table bearings are suitable for high-precision, high-rigidity rotary applications. Classic applications include CNC machine tool rotary tables and indexing tables, industrial robot joints, military radar antennas, aerospace measurement equipment, astronomical telescopes, and medical devices.

The ZKLDF120-B bearing is a Axial angular contact ball bearings, double direction, ZKLDF suitable for the highest speeds with an inner diameter of 120 mm , an outer diameter of 210 mm, a width of 40 mm. 50Mn,42CrMo rings, Its dynamic axial rated load is approximately 75922 N, its static axial rated load is approximately 314955 N. Open Or Sealing shields on both sides type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

120 mm

Outside Diameter:

210 mm

Thickness:

40 mm

Weight:

4.8 KG

Dynamic load Capacity, axial:

75922 N

Static load Capacity, axial:

314955 N

Fatigue Load Limit, Axial:

11361 N

Limiting speed (Oil rpm):

4290

Specifications:

Structure:

Axial angular contact ball bearings

Number of Rows:

Two

Bearing Material:

50Mn,42CrMo

Seals Type:

Open Or Sealing shields on both sides

Operating Temperature:

-30 to 120 °C

Series:

ZKLDF = high tilting rigidity, low friction and low lubricant consumption

Rolling Element:

balls

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

50 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

ZKLDF120-B bearings ( 120 mm x 210 mm x 40 mm) have the advantages of It can withstand axial, radial and overturning moments simultaneously, has a compact structure, is easy to install, and is suitable for heavy-duty rotation, and are therefore widely used in the combined milling and turning.

Part Number	ZKLDF120-B
Mounting	screw
Bearing Type	Axial angular contact ball bearings, double direction, ZKLDF suitable for the highest speeds
Manufacturer Part Code	ZKLDF 120
Series	ZKLDF = high tilting rigidity, low friction and low lubricant consumption
Seal type	Open Or Sealing shields on both sides
Rolling Element Type	balls
Rolling Element Material	GCr15
Ring Material	50Mn,42CrMo
Rows NO.	Two
Alias	Super Precision Bearings for Rotary Tables
m Weight [kg]	4.8
Reference From	INA ZKLDF120-B
Grease for relubrication	Arcanol MULTITOP
Main Dimensions
d φ Inside [inch]	4.724
d tolerance [mm]	-0.01 to 0
D Φ Outside [inch]	8.268
D tolerance [mm]	-0.015 to 0
H High [inch]	1.575
H₁ [inch]	1.024
D₁ [inch]	7.283
D₂ [inch]	6.260
D₃ [inch]	7.126
J [inch]	5.315
J₁ [inch]	7.677
Performance
C_ua Fatigue Axial [lbf]	2553
C_a Dynamic Axial [lbf]	17067
C_0a Static Axial [lbf]	70801
n_G Limiting speed (oil) [r/min]	4290
Operating temperature - T(min) [°C]	-30
Operating temperature - T(max) [°C]	120
Mounting dimensions
d₁ Fixing screws (Inner ring) [inch]	0.276
d₂ Fixing screws (Inner ring) [inch]	0.433
a Fixing screws (Inner ring) [inch]	0.244
Fixing holes Inner ring Quantity	22
d₃ Fixing screws (Outer ring) [inch]	0.276
Fixing holes Outer ring Quantity	21
n Pitch quantity	24
t Pitch separation angle [°]	15
t₁ Axial and radial runout [µm]	3
G Threaded extraction hole	M8
Threaded extraction hole Quantity	3
M_A Screw tightening torque [Nm]	14
M_R Bearing friction torque [Nm]	2
Additional information
C_aL Rigidity of bearing position (axial) [kN/µm]	1.5
C_rL Rigidity of bearing position (radial) [kN/µm]	0.4
C_kL Rigidity of bearing position (Tilting rigidity) [kNm/mrad]	5.5
C_aL Rigidity of bolling element set (axial) [kN/µm]	2.5
C_rL Rigidity of bolling element set (radial) [kN/µm]	0.4
C_kL Rigidity of bolling element set (Tilting rigidity) [kNm/mrad]	8

The ZKLDF120-B Rotary table bearings are precision bearings with a thrust-radial combined structure. They mainly consist of a housing ring, a shaft ring, two rows of axial cylindrical roller cage assemblies, and one row of radial cylindrical roller cage assemblies. The housing ring and shaft ring are evenly distributed with mounting screw holes for easy direct fixing.

The advantages of rotary table bearing design are that it can simultaneously withstand radial loads, bidirectional axial loads and overturning moments. The negative clearance preload design ensures extremely high rigidity and rotational accuracy. Moreover, the compact structure greatly simplifies rotary table design and reduces installation and maintenance costs.

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ZKLDF120-B Bore 120 Mm, Axial Angular Contact Ball Bearings, Double Direction, For The Highest Speeds

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