114.32.1250 single row four contact ball slewing bearing internal gear for Heavy Fist Remote controlled weapon station

LONGWEI  slewing bearing is committed to the construction of the military industry and is suitable for a variety of complex geographical and working environments. The products have passed tensile strength, yield strength testing, anti-oxidation testing  etc. to ensure safety and smoothly operating.

LONGWEI slewing bearing offers a variety of customized slewing bearings and relative precision gear assemblies to meet specific demands. LONGWEI slewing bearing provides customers with tailored designing and professional technical support. With unique coating treatment technology, LONGWEI brand is aim to apply for areas which requiring excellent corrosion fields. Our technology has been proven in main military applications. ITP and QC procedures are in line with the relevant technical requirements of government procurement. The complete QMS &Auditing by TPI enables LONGWEI slewing bearings to be prestigious in the military industry.
Products Description
Model Number:114.32.1250 Brand namelongwei
Production Experience Since 2004 Applicable Industries:Military,Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Construction works , Energy & Mining, Food & Beverage Shops
Specificationfrom 200-5000mmGear Options:Internal Gear Only
Material:50Mn/Customized Seals Type:NBR or as requirement
Outside Diameter300 - 5000 mmCERTIFICATE:ISO9001:2008/SGS
Bore Diameter1110 mmOutside Diameter1390mm
Operating tempereature: -30°C +70°CHardness: 55HRC-62HRC
Product Name: Single row cross roller type slewing bearingService:OEM Service.Design Service
Net Weight : 350kgs Rolling element:Roller & Spacer
Warranty Period 1 yearTestingIn house or third party
KEY WORDInternal gear Single row cross SizeStandard OR Customized
Height 91 mmH.S. Code848210900
Packaging Details1.Filling with rust-proof oil
2.packing with protective layers
3.Fixed in the plywood4.Packaging terms:Plywood case/ Pallet/Steel frame

The single-row cross roller swivel ring also consists of two inner and outer rings with a compact structure, high manufacturing precision, low weight and little assembly clearance. The inner ring and the outer ring are connected by rollers, the rollers are arranged in a 1: 1 cross, which can simultaneously absorb axial force, tilting moment and larger radial force.

Also it is widely used in lifting and transportation, military products, medical equipment, bucket wheel machines, park amusement machines, filling machines etc, which play a very important role in construction machinery products.

Installation accuracy and stiffness requirements for various slewing bearings
Plane deviation of mounting bracket P (mm)
Raceway center diameterPlane deviation of mounting bracket P (mm)
DL(mm)single row four balldouble row ballcross roller

Our slew bearing 114  series are single-row cross roller slewing bearings with teeth on the inner ring, you can use a pinion with it to bring the slewing ring rotary.


The advantages of single-row cross-roller slewing bearings are:

  1. The structural force distribution is very special, and the ability to resist deformation is superb.
  2. The precise positioning is stronger, and the offset error is almost zero.
  3. The technological level and manufacturing level of the factory.
  4. A series of advantages such as high rotation accuracy, strong resistance to deformation, large carrying capacity and flexible structure design.

Slewing ring bearings are comprised of two rings, each of which contains a precision raceway that is induction hardened on the surface to a specified depth. Each ring is made from a medium carbon steel forging.

114 Series bearings have raceways constructed in a four-point contact configuration, with 45° contact angles as standard. Other raceway configurations are available, such as crossed roller and eight-point contact. These other options are often considered in cases where very high loads or special stiffness requirements are needed.

Mounting holes are generally spaced around the faces of the inner and outer ring along a uniform bolt circle and equal spacing. These holes can be thru holes, tapped holes, blind tapped holes, counter-bored holes, etc. Sometimes bolt circle or spacing requirements need to be customized to meet the demands of a specific application, in which case custom options are available. In the case of either the standard part numbers listed in this catalog, or other custom versions provided  the equipment designer, manufacturer, or user is responsible to determine that the mounting design is adequate.

Slewing ring bearings can be supplied as ungeared, or with gears on either the ID of the inner ring or the OD of the outer ring. Gears are typically a standard stub involute spur gear with backlash provisions and AGMA Q8 quality minimum.

Details for each bearing can be found in the enclosed dimensional tables, and drawings are available. Custom gear configurations are also available.

At least one grease fitting is included in one of the rings. The quantity may increase with the diameter of the bearing. For bearings with gears, the grease fitting(s) are located on either the ID or OD of the ungeared ring. For ungeared bearings,come equipped to accommodate grease fittings on either the inner or outer ring. Custom quantities, locations and configurations for grease fittings are available.



Schematic diagram of radial torque
Schematic diagram of axial torque
Schematic diagram of overturning moment

About Longwei

Provide you with customized industry solutions

longwei factory

More than ten years of production experience, strict quality control can be the guarantee of the best solution in the industry.
China’s leading supplier of slewing bearings, its products have passed ISO 9001 and CAPE certification, and has a number of product patents.

The flexibility of our dialogue and approach with our clients is combined with responsive design and development innovation to ensure exceptional delivery.


Do you have any questions about our slewing bearing? Maybe you can find the answer below. If the answer below does not solve your problem, please contact us and our engineer will answer it for you.

1. Where is your slewing bearing manufactured?
Our slewing bearings are all manufactured in China. We not only have the ability to design and produce slewing bearings but the quality can also be guaranteed. At the same time, our slewing-bearing price is more favorable.

2. I don’t know which slewing bearing to use, can you choose for me?
Yes, of course, Each model has a parameter list on the website. You can choose the suitable slewing bearing according to these parameter lists. If you don’t know how to choose, you can get in touch with us and our engineers will work with you to choose the suitable product. We can also design a new slewing bearing solution for you according to your equipment.

3. Can I get your product catalog?
You can get our product catalog in the download or contact us, we will send the product catalog to you by email or other ways.

4. Can you customize products?
Yes, we can. Our engineers have very rich experience in slewing bearing design. On the customized slewing bearing page, you can see some special customized products designed by our engineers. These design solutions meet the special needs of many customers. Our engineers can also work with you to design a new slewing bearing.

5. Can you provide accessories?
Yes, we can provide matching spare parts such as motors, hydraulic motors, and encoders that are compatible with slewing bearings.

6. Can you provide a 3D model?
Yes. All our slewing bearings have 3D models, you can contact us to get them. At the same time, we can also provide CAD files and PDF files.

7. How long is your slewing bearing warranty period?
Our slewing bearing warranty time is 12 months. When you install, use, and store the slewing bearing, please refer to the slewing bearing instruction manual.

8. Can you choose the color of your slewing bearing?
Yes. Our slewing bearing is available in many colors. If you have special requirements, please tell our sales engineers, we are happy to provide services for you.


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