JAPAN NTN BA230-2 bearing for HD770-1 high speed
1.About excavator bearing:
The installation and removal methods of excavator bearings should be determined according to the
structure, size and matching properties with excavator bearing parts.
The pressure of installation and disassembly should be directly applied to the end face of the tight-fitting
excavator bearing ring,
and the pressure cannot be transmitted through the excavator bearing rolling body, because it will cause
indentation on the working surface of the excavator bearing,
affect the normal operation of the excavator bearing, and even damage the excavator bearing. Parts such
as the cage, sealing ring and dust cover of the excavator bearing are easy to deform,
and the pressure of installing or disassembling the excavator bearing cannot be added to these parts.
2.Excavator bearing type:
Excavator bearings include: Excavator walking bearing, excavator rotary bearing, excavator needle roller
bearing, excavator gearbox bearing, excavator walking motor bearing, excavator walking drive bearing,
excavator joint bearing, the rotary support bearing of the excavator and the English non-standard
bearing used on the excavator.
3.Excavator bearing Use :
(1) improper adjustment of gear shifting device, if the transmission of this type of excavator adopts
mechanical manual gear shifting mode, if the gear shift lever, vertical shaft, horizontal shaft and vertical
fixing screw are loose, the transmission can also "jump ". Wear of variable speed transmission mechanism
(2) sudden change of external load due to the working nature of the excavator and the design of the
machine itself, sudden change of external load will also lead to "gear jump" of its transmission ". When
the road surface is uneven, the excavator runs downhill or the driving route is improper and the external
load suddenly changes, this sudden change of load will act on the gear engagement gear of the
transmission through wheels and transmission shaft, making the gear engagement gear disengage due
to axial thrust, causing the transmission to "jump ". P
– At the beginning, we will have a communication with our customers on their demand, then our engineers will work out an optimum solution based on the customers’ demand and condition.
– Running in accordance with ISO 9001 quality system, the advanced production equipments, sophisticated processing technology, strict quality management system, skilled workers and innovative technical team, make our bearings in continuous quality improvement & technology development.
QUALITY CONTROL (Q/C)
- In accordance with ISO standards, we have professional Q/C staff, precision testing instruments and internal inspection system, the quality control is implemented in every process from material receiving to products packaging to ensure our bearings quality
– Standardized export packing and environment-protected packing material are used for our bearings, the custom boxes, labels, barcodes etc. can also be provided according to our customer’s request.
– Normally, our bearings will be sent to the customers by ocean transportation due to its heavy weight, airfreight, express is also available if our customers need.
– We warrant our bearings to be free from defects in material and workmanship for a 12 months period from the shipping date, this warranty is voided by non-recommended use, improper installation or physical damage.
Zhonghong bearing manufacturing co., Ltd is a bearing production,
sales - based company, the company in the industrial field has many years of bearing
supporting and industrial service experience.
Types involved: deep groove ball bearings, joint bearings, conical bearings,
cylindrical bearings and so on Our products are widely used in machine tools, coal mine,
railway, petroleum printing, power plant, ship, aviation, automobile and other industries
Products process: Advanced producing equipment, inspection equipment and good control system to keep the
product produce smoothly.
Quality guaranty: Product quality assurance period is over year 2000 miles.
Superficial finish: Carefully work in the assembly line to confirm the products in perfect appearance.Products
can also be manufactured according to drawings and samples with customers requirement. We sincerely
welcome our friends to visit and negotiate business.
Meanwhile, we are looking forward to finding long-term partners..
1.Single box packing, then in carton then in Pallet.
2.Standard export packing.
3. According customer demand.
Q1: Are you manufacturer or trading company?
A1: We are manufacturer
Q2: Whafs the MOQ?
A2:Usually Your MOQ is around 3000 pcs/color. Contact us for a quotation on
orders under 3000 pieces and we will do whatever we can to accommodate you.
Q3:Can i Get samples?
A3:Of course, we usually provide existing sample for free, however you need to
cover the express charge, and if you have special request then we will charge
you for special arrangement, and this charge is refundable when order is up
to a certain quantity.
Q4: What's the delivery time of your products?
A4: Usually the delivery time is 30 days after confirming order and detail. Delivery
time depending on your purchasing quantity and production season.