Ball and roller bearing - Import export

KFB-Clarfeld thrust ball bearings are manufactured as single and double direction models. Ball bearings of the series 511, 512, 513 and 514 are single sided, the models 522, 523 and 524 are double sided. Thrust ball bearings are composed of shaft washers, cage washers, and cage assemblies. The bearings are separable; cage assembly and bearing washers can therefore be fitted independently of each other. Both models tolerate high axial forces, however, they may not be radially stressed.

double row cylindrical roller bearings ball bearings spherical roller bearings cylindrical roller bearings specified by UIC double row cylindrical roller bearings standardized by UIC single and double row tapered roller bearings standardized by UIC axle box transmission traction motors B-asymmetrical rollers C-symmetrical rollers R-bearings without inner rings M-machined brass cage, roller centered MA-machined brass cage, outer ring centered TN-injection moulded cage of glass fibre according with ISO 281:2007 W33-annular groove and three lubrication holes P6-according with ISO tolerance class 6 No code-standard C3-greater than standard C4-greater than C3 K-tapered bore ratio 1:12 No code-cylindrical

In the mining sector severe operating and environmental conditions require extremely robust bearings. Bearings for mining industry are used for bucket wheel excavators, draglines, conveyor belts, trucks, stackers, transport equipment, loaders, longwall shearers and hoists. The mining industries use many types of bearings: roller bearings, deep groove ball bearings, spherical roller bearings and tapered roller bearings. DEEP GROOVE BALL BEARINGS The mining industries use belt conveyors for transporting bulk materials. The conveyors run on idlers and a lot of them extend over many kilometers; thus the number of idlers needed may be very large. The deep groove bearings (design 2ZR and 2RS) are sealed by dust shields and seals on both sides, and filled with grease for a long service life. SPHERICAL ROLLER BEARINGS In the mining sector severe operating and environmental conditions require extremely robust bearings. Mining machinery faces some of the toughest terrains.

Jackdown frames in 3, 5, 6 or 10 roll arrangements Retractable frames Other special loading frames available – for example impact roller cassettes Dimensions: Includes Jackdown, retractable and other special impact arrangements Belt widths from 350 to 3,500 mm (14” to 138”) Various trough angles available

Hydraulic operated Rotational speed of brush: max. 150 RPM Can be adjusted by hydraulic pump – brush will be lifted to operation position by hydraulic cylinder and keep same pressure against the belt

Standard Catalogue Product Range Pulley Diameters up to 800mm (32”) Belt widths up to 2,800mm (110”)

Wide range to meet even the toughest demands includes a standard range for compact light duty and medium duty pulleys as well as engineered class pulleys for heavy duty applications Available in all sizes with masses up to 45 tonnes as drive, tail and bend pulleys Advanced design process incorporating Finite Element Analysis ensure the pulleys are designed to world’s best practice Dead-shaft, wing and deflection wheels for high angle conveying are also available

Our garland rollers are connected to each other with flexible links and fixed to the conveyor frame with suspension links Free movement in the direction of the belt travel has also a positive influence on the self-centering of the belt easy to replace by lifting the idler set from the mounting hook

Positive action training frames in all configurations Side guide rollers orientate the frame and help ensure the belt tracks centrally on the conveyor Dimensions: Available in all configurations for both carry and return frames Positive action helps keep the belt aligned with the center of the conveyor

Development structure is available from 1,050 to 1,400 mm (42” to 55”) Maingate structure is available from 1,400 – 2,000 mm (55” to 78”) Supplied complete with garland or fixed frame idlers Suitable for floor or roof mounting Dimensions: Available as development and maingate structure Belt widths from 1,050 – 2,000 mm (42” to 78”)

Includes flat return and multi-roll vee returns Dimensions: Available is single roll, 2, 3, 4 or 5 roll configurations Belt widths from 350 to 3,500 mm (14” to 138”)

Trough or flat carry frames available (including transition frames) Combinations range from single roll to 5 roll designs Dimensions: Belt widths from 350 to 3,500 mm (14” to 138”) Various trough angles available

Available as frames only or fitted with rollers as idlers We supply trough carry, impact, training, and disc return fixed frames in a wide range of sizes for belt widths from 350 mm to 3,500 mm (14″ to 138″) Frames are either galvanized or with a painted surface finish All our frames provide minimal gaps between rollers and are designed to counteract material build-up Our frames are designed to maintain an optimum conveyor belt profile for low rolling resistance, excellent belt support, good belt guidance and long belt life

A flow formed roller shell and hollow formed shaft Option for an increased wall thickness at the middle of the shell for reduced shell deformation and increased fatigue life Extremely low TIR with a accurate and constant shell thickness significantly reduces vibration and increases service life Dimensions: Roller diameters 159 – 219 mm (6-1/4” to 8-5/8”) Shaft diameters up to 82 mm (3-1/4”) Bearings 6308, 6310, 6312

Available as either standard catalogue product range (up to bearing size 360 mm (14”) or as application specific designs. Pulley Diameters up to 1,250 mm (49”) Belt widths up to 3,500 mm (138”) Shaft diameters from 100 to 400 mm (4″ to 16″) Locking elements sized to handle bending moment and torque Construction includes both welded end discs & T-shaped end discs Weight optimized design Ceramic/rubber lagging options available

GURTEC’s Heavy Mining Idler Roller is setting a new standard for high speed mass transportation and life cycle costs. Our highly automated manufacturing line utilises a flow forming process for extremely round tubes and an end forming process to round shell edges and integrate concentric bearing houses to the roller shell body, avoiding the need for welding.

Aluminium rollers are ideal for harsh corrosive environments The light weight also provides EHS benefits during installation and replacement Dimensions: Roller diameter 127-152 mm (5” to 6”) Shaft diameter up to 60 mm (2-3/8”) Bearing 6205, 6305, 6307, 6308, 6309

Support discs prevent build up on the roller and therefore help avoid accelerated belt wear Various profiles and arrangements are available to suit customer demands Dimensions: Roller diameter 89-250 mm (3-1/2” to 10”) Shaft diameter up to 60 mm (2-3/8”) Roller length up to 3,000 mm (118”)

Impact rollers are available with rubber or polyurethane discs FRAS discs are available for explosive environments Dimensions: Roller diameter 63,5 mm (2-1/2” to 10”) Shaft diameter up to 80 mm (3-1/8”) Ball and spherical roller bearings

Steel rollers for harsh environments Effective labyrinth seals and bearings Dimensions: Roller diameter 63,5 mm (2-1/2” to 8”) Shaft diameter up to 60 mm (2-3/8”) Bearings 6204, 6205, 6305, 6306, 6307, 6308, 6309, 6310, 6312

Used for heavy unit goods conveyors Chain-driven and non-chain-driven Dimensions: Roller diameter 20 – 102 mm (3/4” to 4”) Shaft diameter up to 20 mm as standard (3/4”) Roller length up to 1,500 mm (60 ”)