RKS.302070202001 Customized Four-point Contact Ball Slewing Bearings

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RKS.302070202001

Bore Diameter:1155 mm

Outside Diameter:1398 mm

Width:80 mm

Weight:205 kg

Min. Order:1 Piece

The RKS.302070202001 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 RKS.302070202001 bearing is a Customized four-point contact ball slewing bearings with an inner diameter of 1155 mm , an outer diameter of 1398 mm, a width of 80 mm. 50Mn or 42CrMo rings, GCr15 rolling mlement. It primarily bears axial, radial, and tilting moments, Its dynamic axial rated load is approximately 449000 N, its static axial rated load is approximately 3960000 N. Double Sealed type, non-reinforced acrylonitrile-butadiene rubber (NBR). together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

1155 mm

Outside Diameter:

1398 mm

Thickness:

80 mm

Weight:

205 KG

Dynamic load Capacity, axial:

449000 N

Static load Capacity, axial:

3960000 N

Specifications:

Structure:

Four point contact ball slewing bearings (External gear type)

Number of Rows:

One

Load Direction:

axial, radial, and tilting moments

Bearing Material:

50Mn or 42CrMo

Seals Type:

Double Sealed

Seal Material:

non-reinforced acrylonitrile-butadiene rubber (NBR)

Rolling Mlement Material:

GCr15

Operating Temperature:

-40 to 110 °C

System of Measurement:

Metric

Rolling Element:

Balls

Gear Options:

external gear

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

RKS.302070202001 bearings ( 1155 mm x 1398 mm x 80 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	RKS.302070202001
Bearing Type	Customized four-point contact ball slewing bearings
Gear type	external gear
Weight [lb]	451.943
Interchangeable	SKF RKS.302070202001
Rows NO.	One
Design NO.	2
C_a Dynamic Axial [lbf]	100935
C_0a Static Axial [lbf]	890208
Raceway curves	r2.
Bolt curves	b2
Dimension
dm [inch]	49.527
d φ Inside [inch]	45.472
D Φ Outside [inch]	55.039
H Overall Hight [inch]	3.150
H₁ Hight [inch]	1.260
D₂ [inch]	49.409
C [inch]	2.795
d₁ [inch]	45.551
d₂ [inch]	49.390
B [inch]	2.126
B₁ [inch]	0.591
bolt holes
J_e (Outer ring) [inch]	51.811
K_e (Outer ring) [mm]	M 20
N_e (Outer ring)	42
J_i (Inner ring) [inch]	47.047
K_i (Inner ring) [mm]	22
N_i (Inner ring)	42
Gear
do Gear (PCD) [inch]	54.331
m Module [inch]	0.394
z Teeth No.	138
k·m [mm]	1
Tooth forces
T fnormal [lbf]	16410
T fmax [lbf]	32596

The RKS.302070202001 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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