Product Description
Micro External Teeth Slewing Bearing Excavator Turntable Slewing
Bearing Ring
Slewing bearings are large-sized bearings which can accommodate a
combined load, i.e., radial loads and tilting moment. They are
usually provided with holes for fixing bolts; internal, external or
no gear; and lubrication holes and seals, which allow a compact and
economical arrangement. In addition, they often enable the
elimination of many components necessary in the classical bearing
arrangement.
Slewing Bearing Details As Below:
Product Name | External Slewing Bearing Ring For for Tunnel Boring Machine(TBM) |
Model Number | EGSBM 566 220 121 |
Application | For Tunnel Boring Machine |
Gear Option | External Gear Only |
Seal Type | Rubber Sealed |
Features | Four Point Contact Ball |
Brand | Leadway |
Outer diameter: | 566 mm (22.28") |
Inner diameter: | 220 mm (8.66") |
Height | 121 mm (4.76") |
Axial play: | 0.00 mm~0.10 mm |
Radial play: | 0.00 mm~0.10 mm |
Core hardness: | 250~300 HB |
Raceway Hardness: | 56 ~ 60 HRC |
Raceway Effective depth | ≥ 5 mm |
Material: | GB42CrMo (DIN42CrMo4/BS708A42/AISI4140) |
Standard | EN 10204 2.2; EN 10204 3.1.B ; EN10204 3.1.C |
Heat treatment | Quenching and tempering,
Raceway induction quenching |
Operating Temperature | -40°C to +50°C |
Grease | EP2 lubricating lithium grease |
Weight | 151 KGS |
Place of Origin | JiangSu,China |
Certificate | API Q1 Certificate (American Petroleum Institute) Quality Assured
Firm
Qualified to be used in Petroleum machinery equipment.
ISO9001:2008 Certificate |
Services | OEM Service, Customized Service, Design Service |
Detailed Images
Company Profile
DRACHMA (ZHANGJIAGANG) MATERIAL CO.LTD has two main production
plants. Zhangjiagang plant is responsible for the rough forming of
workpieces, mainly forging process; While Hangzhou plant is mainly
responsible for precision machining, welding and inspection of
products. We implement this layout mainly to use the industrial
advantages of each region to achieve maximum economic benefits.
Traditional processing enterprises often do not have such ability,
the lack of blank forming ability is unable to achieve the optimal
use of materials, resulting in excessive processing allowance, long
cycle, high cost. Zhangjiagang is located in the southern jiangsu
province, which has the strongest forging capacity in China. It has
a good supporting industry and can realize the diversified
production of forging and pressing blanks. Thanks to this, the
product cycle of our company is faster, the cost performance is
higher, and the forging products have better mechanical properties
than the products directly processed by rod or plate.
In addition, our company has strong welding ability, which can weld
and assemble parts to achieve system delivery. We adopt the mode of
automatic robot welding and manual precision welding to achieve
flexibility and high quality.
Equipment List
| Name | Type | Quantity | Processing range | Precision(um) |
| CNC | MAZAK(QTN350L) | 1 | φ720*1250 | 3 |
| CNC | MAZAK(QTN250L) | 1 | φ580*1500 | 3 |
| Turn milling center | MAZAK(QTN250M) | 2 | φ580*600 | 3 |
| CNC | Newway(NL-634SC) | 1 | φ630*1000 | 5 |
| CNC | FUJI(TN-36) | 2 | φ350*290 | 3 |
| CNC | HAAS SL30 | 1 | φ620*750 | 3 |
| CNC | MAZAK FJV200 | 1 | 560X*410Y*560Z | 3 |
| CNC | LGMAZAK NEXUS160AN-2PC | 1 | 560X*410Y*660Z | 10 |
| CNC | WHEELEL | 2 | 560X*410Y*660Z | 5 |
| Welding | Miller | 1 | | |
Material List We Can Deal
Stainless steel :304/1.4307 316/1.4404 321/1.4541 316Ti/1.4571 317L
904L F44 NO6625 UNS718
440A/B/C 431 446 F6a
Carbon Steel:A105, SA350 LF1, LF2, LF3, LF6, A707, A694, 4130,
4140, 8620, 8630, A182F5, F11, F12, F22, F91, F92
Duplex steel : F51 F60 F53 F55
Alloy Steel:4130, 4140, 4142, 4145, 4150, 4320, 4330, 4340, 4350,
4620, 4820, 6150, 8620, 8630, 8822, 9310, 52100, HY80, HY100, 9315,
300M, Nitralloy 135M, 17-22A
Aluminum : 2014, 2024, 2025, 2219, 2618, 3003, 5083, 6061, 7049,
7050, 7075, 7079, 7149, 7150, and 7175
