L9-42N9Z Bore 918.464 Mm, Single Row Ball Slewing Rings With Internal Gears (4-point Contact)

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L9-42N9Z

Bore Diameter:918.464 mm

Outside Diameter:1199.896 mm

Width:89.916 mm

Weight:175.997 kg

Min. Order:1 Piece

The L9-42N9Z 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 L9-42N9Z bearing is a Single Row Ball Slewing Rings With Internal Gears (4-point Contact) with an inner diameter of 918.464 mm , an outer diameter of 1199.896 mm, a width of 89.916 mm. 50Mn or 42CrMo rings, chrome-alloy steel rolling mlement. Double Sealed type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

918.464 mm

Outside Diameter:

1199.896 mm

Thickness:

89.916 mm

Weight:

175.997 KG

Specifications:

Structure:

Four point contact ball slewing bearings (Internal gear type)

Number of Rows:

One

Bearing Material:

50Mn or 42CrMo

Seals Type:

Double Sealed

Rolling Mlement Material:

chrome-alloy steel

Operating Temperature:

-25 to 60 °C

System of Measurement:

inch

Series:

2100 series

Rolling Element:

balls by spacers

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

200 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

L9-42N9Z bearings ( 918.464 mm x 1199.896 mm x 89.916 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	L9-42N9Z
Bearing Type	Single Row Ball Slewing Rings With Internal Gears (4-point Contact)
Gears type	Internal Gear
Grease Fittings Design	(6) 1/8-27 NPT fittings
Units	inch
Seal	Double Sealed
Seal Material	NBR (Nitrile Butadiene Rubber)
Rows NO.	One
Outside - OD Φ [inch]	47.24
OD Tolerances [inch]	+0.14/-0.14
Inside - ID φ [inch]	36.16
ID Tolerances [inch]	+0.03
IO [inch]	41.59
IO Tolerances [inch]	+0.14/-0.14
OI [inch]	41.48
OI Tolerances [inch]	+0.14/-0.14
OE [inch]	43.98
OE Tolerances [inch]	+0.14/-0.14
Overall Hight - HT [inch]	3.54
HT Tolerances [inch]	+0.04/-0.04
Mounting Holes - OBC [inch]	45.75
No. Holes - OBC	30
Mounting Holes - IBC [inch]	39.00
No. Holes - IBC	30
PD [inch]	36.80
DP 20˚ Stub [inch]	2.5
No. Of Teeth	92
Gear hardness (BHN)	180
Max. Tangential Tooth Load [lbs]	15400
Nominal Capacity Compressive Thrust [lbs]	780000
Nominal Capacity Moment [ft-lbs]	610000
Thread depth [inch]	1.13
Min. Mounting Plate Thickness [inch]	2
Standard Pinions	P2.5-5.6D2, P2.5-6.8D2
Weight [lbs]	388

The L9-42N9Z 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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L9-42N9Z Bore 918.464 Mm, Single Row Ball Slewing Rings With Internal Gears (4-point Contact)

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