Big Rolling Mill Four Row Tapered Roller Bearing 777/620 Gcr15SiMn / Gcr15

MOQ： 1 Pcs
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Payment Terms	T/T , Western Union, RMB
Supply Ability	80,000 Pcs per Month
Delivery Time	5-7 Works days
Packaging Details	Industrial Packing or According to the buyer requests for packaging
Model	777 / 620
Type	Tapered Roller Bearing
Size	620mm × 800mm × 363mm
Material	Gcr15SiMn / Gcr15
Number of Row	Four Row
Weight	Mass 480 kgs
Package	Wooden box / pallet
HS Code	8482200000
Brand Name	HDBB
Model Number	777 / 620
Certification	ISO9001 & GB307
Place of Origin	CHINA

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Product Details
Company Details

Product Specification


Payment Terms	T/T , Western Union, RMB	Supply Ability	80,000 Pcs per Month
Delivery Time	5-7 Works days	Packaging Details	Industrial Packing or According to the buyer requests for packaging
Model	777 / 620	Type	Tapered Roller Bearing
Size	620mm × 800mm × 363mm	Material	Gcr15SiMn / Gcr15
Number of Row	Four Row	Weight	Mass 480 kgs
Package	Wooden box / pallet	HS Code	8482200000
Brand Name	HDBB	Model Number	777 / 620
Certification	ISO9001 & GB307	Place of Origin	CHINA
High Light	Big Four Row Tapered Roller Bearing ，777/620 Four Row Tapered Roller Bearing ，Tapered Rolling Mill Bearing

Big Bearings 777 / 620 Four Row Tapered Roller Bearings For Rolling Mill Size 620 X 800 X 363 Mm Mass 480 Kgs

1 . Big Size Bearing Four Row Spherical Roller Bearing :

Four - row tapered roller bearings can accommodate combined ( radial and axial ) loads at low to moderate speeds. They are used almost exclusively in work roll applications such as rolling mills.

Old Code	ID ( mm )	OD ( mm )	Width ( mm )	Mass Weight ( kgs )
777 / 620	620	800	363	480
777 / 650	650	1030	558	1830
777 / 660	660	1070	648	2280
777 / 750	750	1130	688	2480

2 . Features for Four Row Spherical Roller Bearing :

Depending on their design, four-row tapered roller bearings provide the following main features and benefits:

Long service life
The four-cup design (four separate outer rings) provides optimal load distribution over all four rows of rollers.
Enhanced operational reliability
Optimized surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film.
Improved wear resistance
In particular, SKF Explorer bearings are made of extremely clean and homogenous steel and undergo a unique heat treatment, which improve the resistance to wear.
Improved sealing performance with less leakage and less frictional heat
The optimized seal design ensures high protection against external contamination but keeps friction and frictional heat low. This seal design also provides a better retention of lubricant, minimizes environmental impact and reduces maintenance costs.
Equal load carrying capacity for sealed and open bearings
The optimized and compact seal design enables identical internal design.
Total bearing interchangeability
Bearings with and without intermediate rings as well as open and sealed bearings are available with identical external dimensions. This allows total bearing interchangeability of current standard design bearings with those without intermediate rings and/or with optimized seal design.
Separable mounting and simpler inspection
Optimized designs without intermediate rings enable to dismount and separate the cage and roller assemblies and seals. This facilitates mounting, dismounting and also maintenance inspection routines.
Axial space-saving and cost-effective solution for roll necks
The roll necks can be relatively short, no separate axial bearings are required and identically designed chocks (fig. 1) can be used on both sides of the roll.
Simple axial location on roll necks
Tighter inner ring width tolerances facilitate the tolerancing and dimensioning of surrounding components.

3. Packaging

4 . Delivery

1 ) Less than 45 KGS, we will send by express. ( Door to Door, Convenient )
2 ) Between 45 - 200 KGS, we will send by air transport. ( Fastest and safest, but expensive )
3 ) More than 200 KGS, we will send by sea. ( Cheapest, but long time )

5 . Main Application

The papemaking machinery, speed reducer, railway vehicle axle, rolling mill gear box bearing, rolling mill roller, crusher, vibrating screen, printing machinery, woodworking machinery, all kinds of industrial deceleration machine, vertical set-contained spherical roller bearing.

6 . BEARING APPLICATION FIELDS :

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

Graphite Plugged Bushings

from Quality China Factory



Business Type:

Manufacturer,Exporter,Seller 


Year Established:

1998 


Total Annual:

10000000-20000000


Employee Number:

150~300 


Ecer Certification：

Verified Supplier 

Wuxi Handa Bearing Co., Ltd. was founded in 1998, about 20 years of development, now days has become into a group corporation with several subsidiaries. Our factory covers an area of 30,000 square meters, construction area of 19,000 square meters, along with advanced production line and modern test ... Wuxi Handa Bearing Co., Ltd. was founded in 1998, about 20 years of development, now days has become into a group corporation with several subsidiaries. Our factory covers an area of 30,000 square meters, construction area of 19,000 square meters, along with advanced production line and modern test ...

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Wuxi Handa Bearing Co., Ltd.
6-2914 Tianshan Rd, Wuxi City, Jiangsu Province, China
https://www.skf16.com/

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