Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880

Get high-quality Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880 from our factory. We offer durable and reliable products for your construction needs.
Request a Quote


Basic Info.

Model NO.
HS. 30.880
Internal Gear
Custom Design
Company History
Since 1993
in House or Third Party
Dimension Range
Transport Package
Wooden Box
ISO2001: 9008
HS Code
Production Capacity
600PCS Per Year

Product Description

Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880
Detailed information for HSN. 30.880 external gear slewing ring bearing

Bore diameter: 760mm
Outside diameter: 1047.5mm
Height: 95mm
Weight: 230kgs

Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880
Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880 Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880 Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880

Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880

About LYHY bearings

1.introduction:we are a manufacturer of slewing bearing since 1993, our factory occupies a area of 30000square meters with 4 workshop and 1 office building. 
2. Featured products: slewing bearing and slewing drive
3. Capital: Current is 1 million RMB, but we are increasing the capital to 10 million RMB
4. Workers: 40
5. Certificate: ISO9001:2008, 3.1 certificate, CCS certificate, Science and Technology Progress Award
6. Annual Exportation: 8million USD
7. Exported countries: (39)
Asia: India, Pakistan, Iran, Signore, Georgia, Malaysia, Vietnam, Thailand, Philippines, Israel, Korea, UAE, Sri Lanka, Saudi Arabia,
Europe: Turkey, Russia, Spain, Czech Republic, Italy, Poland, Slovakia, Bosnia and Herzegovina, Austria, France, Germany, Switzerland, Finland, Ukraine, UK
America: USA, Canada, Mexico, Brazil, Puerto Rico, Peru, Chile
Africa: South Africa, Egypt
Oceania: Australia

Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880

Single row ball slewing ring bearing
1. Introduction of LYHY single row ball slewing bearings
LYHY is a professional manufacturer in slewing ring bearings since 1993. We can also design and make other standard and non-standard ball bearings, roller bearings and precision bearings as per customer's different technical requirements.
Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing.
The single row ball slewing ring bearing is composed of 2 seat-rings. The balls contact with the circular race at four points, via which the axial force, radial force and resultant moment may be born simultaneously.

Single row ball slewing bearing has three different types:
Single row ball slewing bearing with no gear
Single row ball slewing bearing with external gear
Single row ball slewing bearing with internal gear

Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880

Single row ball slewing ring bearings have following features:
Compact in structure and light in weight.

Production Process of LYHY slewing bearings
Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880

Quality Control Process of LYHY slewing bearings

Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880 LYHY Slewing Bearing Packing 
Bearing surface is covered with the anti-rust oil first; and then wrapped with the plastic film;
And then packed with kraft paper and professional belts;
At last, with wooden box totally at the outer packing to invoid the rust or the moist;
We can depend on the customers  demand to be packed;

Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880 Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880

Single row ball slewing ring bearings are widely used in slewing conveyers, welding arm and positioned, medium duty cranes, excavators and other engineering machines

Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880
All LYHY slewing ring bearings can be usually delivered timely, usual production time is 15-50 days based on different slew bearings diameters, sometimes slew rings will be in stock.
Slewing bearings can be offered different delivery terms, such as EXW, FOB, CIF, DDU and so on.
Also, slewing rings can be transported by different transport ways, by express (such as DHL, TNT, UPS, FEDEX and so on), by air, by sea, by truck, by railway and so on.

Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880


Q: Are LYHY BEARINGS trading company or manufacturer?
A: LYHY BEARINGS is a professional manufacturer for slewing bearings, thin section bearings, ball bearings and rolling bearings

Q: How do LYHY BEARINGS control quality of their bearing?
A: LYHY BEARINGS has established strict quality control systems, all the products and services has passed ISO9001-2008 Quality Certificate and third party such as CCS, LR,ABS,BV

Q: What is the MOQ?
A: MOQ is 1pc, pls message us for detailed information.

Q: How about the package for LYHY bearings?
A: Standard Industrial packing in general condition (Plastic tube+ professional plastic belts+ plywood case). Accept design package when OEM.

Q: How long is the production time?
A: It takes about 7-40 days, depends on the model and quantity.

Q: How about the shipping?
A: We can arrange the shipment or you may have your own forwarder.

Q: Is sample available?
A: Yes, sample order is acceptable.

Q: Can we use our own LOGO or design on bearings?
A: Yes. OEM is acceptable for LYHY BEARINGS. We can design as per your requirements and use your own LOGO and package design.

Tower Crane Slewing Ring Bearing Ring Gear Hsn. 30.880
Make sure that the model is correct and slewing bearing isn't damaged during transportation.
2.  Check the appearance and rotational state of the bearing, such as rotational precision clearance, rotating flexibility, seals position, lubrication grease etc.
3.  The installation datum plane and bracket installing plane should be clean, grease, burr, paint and other foreign body should be wiped off.


1. The screws in the installing plane should be fit with the mounting holes in the slewing bearing
2.  The slewing bearing has a soft zone marked with an "s" on the upper surface, when installing the bearing, it is important to ensure that this area is placed in a non-load or infrequent load zone.
3.  When the bearing is placed on the supporting frame work it is important to check the interface between these two surfaces. This check should be carried out with the insertion of feel gauges between the two surfaces. If a gap should exist then it is recommended to plane/resurface the effective area so as to remove the gap.
4.  Install slewing bearing with high strength screws, and choose appropriate strength bolts. All bolts are required to be tightened evenly. The sequence of this tightening process is shown in Pic. Welding of bearing is not allowed, in the event of welding any adjacent parts, heat transfer shall be avoided so as to cause the bearing to become deformed or change the hardness.
5.  After installation, the bearing should be rotated to check for smooth operation and any emission of unusual noise. If either of the aforementioned are noted, then the bearing should be adjusted to eliminate them. The teeth of the largest run-out are coated with green paint.

Model Overall Dimension
Non Gear External Gear Internal Gear D d H
HSB.25.625 HSW.25.625 HSN.25.625 725 525 80
HSW.25.625A HSN.25.625A
HSB.25.720 HSW.25.720 HSN.25.720 820 620 80
HSW.25.720A HSN.25.720A
HSB.30.820 HSW.30.820 HSN.30.820 940 705 95
HSW.30.820A HSN.30.820A
HSB.30.(32)880 HSW.30.(32)880 HSN.30.(32)880 1000 760 95
HSW.30.(32)880A HSN.30.(32)880A
HSB.30.(32)1020 HSW.30.(32)1020 HSN.30.(32)1020 1170 875 95
HSW.30.(32)1020A HSN.30.(32)1020A
HSB.30.(40)1220 HSW.30.(40)1220 HSN.30.(40)1220 1365 1075 120
HSW.30.(40)1220A HSN.30.(40)1220A
HSB.35.(40)1250 HSW.35.(40)1250 HSN.35.(40)1250 1400 1090 120
HSW.35.(40)1250A HSN.35.(40)1250A
HSB.35.(40)1435 HSW.35.(40)1435 HSN.35.(40)1435 1595 1278 120
HSW.35.(40)1435A HSN.35.(40)1435A
HSB.35.(50)1540 HSW.35.(50)1540 HSN.35.(50)1540 1720 1360 140
HSW.35.(50)1540A HSN.35.(50)1540A
HSB.35.(50)1700 HSW.35.(50)1700 HSN.35.(50)1700 1875 1525 140
HSW.35.(50)1700A HSN.35.(50)1700A
HSB.40.(50)1880 HSW.40.(50)1880 HSN.40.(50)1880 2100 1665 160
HSW.40.(50)1880A HSN.40.(50)1880A
HSB.40.(50)2115 HSW.40.(50)2115 HSN.40.(50)2115 2325 1900 160
HSW.40.(50)2115A HSN.40.(50)2115A
HSB.40.(60)2370 HSW.40.(60)2370 HSN.40.(60)2370 2600 2146 180
HSW.40.(60)2370A HSN.40.(60)2370A
HSB.40.(60)2600 HSW.40.(60)2600 HSN.40.(60)2600 2835 2365 180
HSW.40.(60)2600A HSN.40.(60)2600A
HSB.50.(60)2820 HSW.50.(60)2820 HSN.50.(60)2820 3085 2555 200
HSW.50.(60)2820A HSN.50.(60)2820A
HSB.50.(60)3120 HSW.50.(60)3120 HSN.50.(60)3120 3400 2840 200
HSW.50.(60)3120A HSN.50.(60)3120A
HSB.50.(60)3580 HSW.50.(60)3580 HSN.50.(60)3580 3920 3240 240
HSW.50.(60)3580A HSN.50.(60)3580A
HSB.50.(60)4030 HSW.50.(60)4030 HSN.50.(604030 4370 3690 240
HSW.50.(60)4030A HSN.50.(60)40300A
HSB.50.(60)4540 HSW.50.(60)4540 HSN.50.(60)4540 4860 4210 240
HSW.50.(60)4540A HSN.50.(60)4540A


Contact us

Please feel free to give your inquiry in the form below We will reply you in 24 hours