RKS.21 0541 Single row four-point contact ball slewing bearings,434x640x56mm

Basic Dimensions(mm)

Bearing Designations

Gear paremeter

basic load rating(KN)

Weight

Dia(mm)

(KGS)

434

640

RKS.21 0541

630

105

188

380

RKS.21 0541 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 0541 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 0541 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 0541 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 0541 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