single-row slew ring bearingworm drive HD450-7slewing bearing for crane ring box


Quick Details


Slewing Bearing

Place of Origin:

Zhejiang, China

Brand Name:


Model Number:



Cross Roller, Roller/Ball Combination,hydraulic,seal,combined,heavy equipment

Outside Diameter:

150 – 8000 mm

Bore Size:

150 – 8000 mm

Gear Options:

Internal Gear Only

Seals Type:


Product Type:

worm drive,ring box,swing bearing,swing ring,swing ring bearings

Seal Type:

hyundai,Nitrile Rubber,double sealed,high quality Rubber,5MP strength


55HRC-62HRC,gear teeth harden,Entire Harden


excavator accessories,crane accessories


Type large,turntable,four point contact ball,single-row,double row


42CrMo,chrome,stainless,metal,ferrous sulfate heptahydrate,50Mn


good service,precision,Professional,low MOQ,manufacturer




After-sale Service

Supply Ability

Supply Ability:
1500 Set/Sets per Month

Packaging & Delivery

Packaging Details
1,Industrial Exporting Packing: rust-preventive lubricant on the inside surface, outerside surface and races, and then packed slewing bearing with plastic film, kraft paper and blue belt. 2 ,As customer's requirement.
Lead Time
Shipped in 15 days after payment

Online Customization

single-row slew ring bearingworm drive HD450-7slewing bearing for cranering box

Details of Slewing Bearings
Features of ring box
ring box is also called:Slewing ring bearing/Turnable bearing/Slewing ring etc.

Slewing Ring Bearings can accommodate axial, radial and moment loads acting single or in combination and in any direction.

They are not mounted in a housing or on a shaft, but directly to a seating surface.

The inner and outer ring are supplied with mounting holes. Both rings may have integral gears.

They are also referred to as slewing rings and tabletop bearings.

Slewing ring bearing can perform oscillating (slewing) as well as rotating movements.

They may be used without gears or with internal or external gears.

Structure types of Slewing Bearings
—— Single-row 4-point contact ball series
—— Single-row crossed roller series
—— Double-row ball series
—— Three-row roller series
—— Roller and ball combination series
—— Quenching slewing ring bearing
—— For Non-gear,External Gear,Internal Gear application with slewing bearing for crane ring box

Application of Slewing Bearings
Mine machine, port hoisting machine, port oil transfer equipment onshore and offshore crane,excavator,concrete
machine,paper machine, plastic and rubber machine, weave machine, steel plant, electronic power plant,
wind power generator, other construction and industry machines or equipment.

Our ring box to a wide range of the excavators, a good replacement slewing ring bearings used on Komatsu, Kobelco,Hyundai and so on, we can supply according to the most of the machine number, and a lot of slewing rings are in stock for the quick delivery. below is the normal machine number we can supply the slewing ring bearings.
No Komtsu No Komatsu No Komatsu No Hitachi No Hitachi No Kato
1 PC30-2 1 PC20HT 1 PC220-6(S6D95) 1 PC400-5 1 ZX120 1 HD820-1
2 PC30(92T) 2 PC200-1 2 PC220-6(S6D102) 2 PC400-6 2 EX200-1 2 HD900-7
3 PC60-6(76T) 3 PC200-2 3 PC200-7(110T) 3 PC450 3 EX200-5 3 HD250-7
4 PC60-6(80T) 4 PC200-3 4 PC220-7(92T) 4 EX40-1 4 EX210-5 4 HD450-5
5 PC60-7(76T) 5 PC200-5 5 PC228 5 EX60-1 5 ZX200 5 HD450-7
6 PC60-7(80T) 6 PC210-7 6 PC300-2 6 EX60-5 6 ZX210 6 HD450
7 PC90-6 7 PC220-3 7 PC300-3 7 EX90 7 ZX230 7 HD516
8 PC100-5 8 PC220-5 8 PC300-5 8 EX100-1 8 ZX240 8 HD512
9 PC120-5 9 PC200-6(S6D95) 9 PC300-6 9 EX120-1 9 EX220-5 9 HD550
10 PC120-6(4D95) 10 PC200-6(S6D102) 10 PC350-6 10 EX120-2 10 EX300-1 10 HD100
11 PC120-6(4D102) 11 PC200-6(S6D102) 11 PC360-7 11 EX120-3 11 EX300-2 11 HD700-2
12 PC150-5 12 PC200-6(6D102) 12 PC400-3 12 EX120-5 12 EX400-3 12 HD700-5
No Kato No Kato No Kato No DooSan No DooSan No Hyundai
1 HD700-7 1 SK03 1 SK200-5 1 DH55-3 1 DH215-7 1 R55-7
2 HD770SE 2 SK09 2 SK200-6 2 DH55-5 2 DH10L 2 R60-5
3 HD770-1 3 SK60-5 3 SK200-8 3 DH80GO 3 DH280 3 R60-7
4 HD770-2 4 SK907B 4 4 DH150 4 DH290 4 R60-7
5 HD800-7 5 SK100 5 5 DH200-3 5 DH300-5 5 R80-7
6 SK07-1 6 SK120-5 6 6 DH220-2 6 DH300-7 6 R110-7
7 SK07-2 7 SK200-1 7 7 DH220-3 7 DH370-7 7 R130-5
8 SK07-1-N2 8 SK200-2 8 8 DH220-5 8 DH420 8 R130-7
9 SK07-N2 9 SK200-3 9 9 DH220-7LC 9 R170-5
No Hyundai No Sumitomo No Sumitomo No Cat No Cat No VOLVO
1 R200 1 SH60-1 1 SH200C3 1 CAT70B 1 CAT325C 1 EC210B
2 R200-5 2 SH120A1 2 SH200Z3 2 CAT307B 2 CAT330C 2 EC210B
3 R210 3 SH120A2 3 SH220 3 CAT305.5 3 CAT345C 3 EC360
4 R210-5 4 SH120A3 4 SH225 4 CAT320B 4 4 290
5 R210-3 5 SH140 5 SH260 5 CAT320C 5 5
6 R200-7 6 SH145 6 SH280 6 CAT320D 6 6
7 7 SH200A1 7 SH300-2 7 CAT320L 7 7
8 8 SH200A2 8 SH350 8 CAT325 8 8
9 9 SH200A3 9 SH430 9 CAT305-5 9 9
10 10 SH200C2 10 SH40T 10 CAT325B 10 10

Why choose GRT?

Choosing GRT, you will enjoy our value-added and one-stop services as following:

Wide product range: We can provide almost all kinds of bearings, ranges from I.D 25 mm up to O.D 8,000 mm.

Customized solution:We can design and develop special ring box or provide economical solution according to your application. We are able to develop over 300 new bearings every year.

Cost-saving solution:With reliable quality and reasonable price, we are supporting our global OEM customers with fruitful cost-saving programs. Our OEM customers, who were all used to buy only European or American branded bearings, cover those industries of material handling system, gear box, electrical motors, steel mills, automobiles and so on. Our cost-saving programs have been widely approbated by our OEM customers.

Supply chain management: Beside our bearing products, we can also help you to purchase other industrial components, control quality and do assembly, then to further help you achieve higher operation efficiency.

Application technical service: WD’s technical team is much experienced in automobile bearings, industry bearings, and even aerospace bearings. We are able to provide support on bearing selection, design optimization, product development, bearing mounting, bearing maintenance, lubrication and etc.

Technical training:We can provide technical training for bearing selection, design, production technique, quality inspection, mounting and maintenance, etc. to our global sales partners or end-users.

Quality control service:With our comprehensive inspection methods, our quality control covers material, heat treatment, dimensions, profile, roughness, clearance, noise and so on. Our experienced QA team is able to control quality whatever during the production, or before the shipment, to guarantee that our customer will only receive quality, but not trouble.

Flexible production schedule: Relying on our ERP management and fast flexible production pattern, we are able to control our lead time in 10-20 days for standard products, and in 20-30 days for special and extreme-large size bearings. In case of urgent demand, our emergency production unit will guarantee your business free of trouble.

GRT delivery: Based on your forecasting, we would prepare inventory in our centre warehouses in China.

Logistic service:Cooperating with world leading logistic partners, our professional international service team will be pleased to offer you our best service.

Local service: Our over 20 global sales partners are ready to serve you as your local bearing expert, providing you with efficient, convenient and professional before-sale, in-sale and after-sale services.

Please feel free to send us your enquiry

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