RKS.21 0741 four-point contact ball slewing bearings,634x840x56mm used for truck equipment

RKS.21 0741 four-point contact ball slewing bearings,634x840x56mm used for truck equipment

RKS.21 0741 SKF code    Single row four-point contact ball slewing bearings

Dimensions - d (inside diameter) 634 mm 

Dimensions - D (outside diameter)840mm 

Dimensions - B (width) 56 mm 

RKS.21 0741   Single row four-point contact ball slewing bearings are simple in design. They are particularly versatile and offer many advantages for applications where there are light-tomedium axial, radial and moment loads.

RKS.21 0741   The outer ring and inner ring material: 42CrMo, 42CrMo4V,50Mn in accordance with EN
10083
Ball material: 100Cr6 bearing steel,in accordance with EN ISO683
Geart teeth accuracy grade: in accordance with ISO1328
Oil or grease material:Lithium grease
The inner ring and outer ring Material  hardness: quenching and tempering: HB229~269
Raceway case hardening :HRC55~62

RKS.21 0741   The package,: Inside packaging: plastic film + kraft paper + blue tape; Outside packaging: standard export free-fumigation wooden case. we can assure that the bearing shipping by sea or by air.
The delivery time:25-35 days

Generally, RKS.21 0741   slewing bearings are large-size rolling bearings that can accommodate axial, radial and moment loads acting either singly or in combination and in any direction. They can perform both slewing (oscillating) movements as well as rotational movements.

Basically, a slewing bearing consists of an inner ring , an outer ring and rolling elements−balls or cylindrical rollers−that are separated by polyamide spacers .The rings, one of which usually incorporates a gear , are provided with holes to accommodate attachment bolts. The holes may be threaded.
Generally, only the raceways in the rings are hardened and precision- ground. Integral seals  made of acrylonitrile- butadiene rubber (NBR) keep the lubricant in, and contaminants out of the bearing.

RKS.21 0741   Slewing bearings perform extremely well in a variety of applications such as:
• access platforms
• bucket wheel excavators
• conveyor booms
• cranes of all types
• small, medium and large excavators
• indexing tables
• ladle turrets
• offshore applications
• robots
• railway bogies
• rotary platforms
• stackers
• solar mirrors
• tunnel boring machines
• wind turbines

How to hoose RKS.21.0741 bearing right dimension:

If you need choose the right bearing type, Please offer the following details:

A. applied loads

B. Collective loads with respective time percentages

C. Speed or number of movements and angle per time unit together with the relating collective loads

D. Circumferential forces to be transmitted by the gearing

E. Bearing diameter

F. Other operating conditions

   If you want to know  RKS.21 0741   bearing  more, Please send us by e-mail  or call us, We will send the more details. Thanks.  

JinHang Precision Bearing Co.,Ltd
www.chinajhbearing.com
www.lyjhbearing.com
Address: Yiyang Bearing Industry Zone, Luoyang City, China 47100
Mob/wechat :0086 180 379 70383
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E-mail:lyjh@lyjhbearing.com
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