Bearings - ball- needle and roller - Import export

Sprockets with hub one side for DIN ISO 606 roller chains. The sprockets have a centre bore or are predrilled (this can vary due to production methods). For this reason, the dimension D3 max. given in the table is the maximum diameter of the bore that the sprockets are supplied with. This pilot hole/centre bore can be customised with a reamed hole, reamed hole with keyway or a tapped hole by the customer. Alternatively, bushes can be fitted by the customer to reduce the diameter.

Housing plastic. Ball bearing stainless steel 1.4112. Plain bearing insert POM. Bushes and grease nipple stainless steel 1.4301. Version Plain bearing insert white. Housing green. Stainless steel parts bright. Note The housings are very robust, hard wearing and shock proof. They are resistant to most alkaline solutions, weak acids (PH 49) and brines. In contrast to cast or steel housings the special plastic in these housings prevent the formation of microorganisms. Drawing reference 1) ball bearing 2) plain bearing

Housing, stainless steel 1.4301. Bearing, stainless steel 1.4125. Seal, rubber NBR. Note Pillow block bearings consist of a sealed singlerow ball bearing with a spherical outer ring which is mounted in a housing. Because of the spherical outer surface of the bearing, shaft misalignment can be compensated for. The bearings are manufactured with a plus tolerance. This results in transition or press fits when using shafts with htolerances. The shaft is secured by grub screws on the inner ring. In normal applications, pillow block bearings are maintenancefree due to the lifetime lubrication. In difficult environmental conditions relubrication can be carried out over the grease nipple. All housing dimensions are nominal dimensions for which the usual casting tolerances must be taken into consideration.

Material Ballbearing steel 100Cr6. Seal, rubber NBR. Version Sealed on both sides with a spherical outer ring. Can be relubricated. Note The internal construction of the insert bearings corresponds to that of standard Series 6200 and 6300 radial ball bearing. However, they have wider inner rings for easier fastening on shafts. The inner rings are manufactured with a plus tolerance. This results in transition or press fits when using shafts with htolerances. The shaft is secured by 2 grub screws positioned 120° apart on the inner ring. The insert bearings are ready to install and are permanently lubricated with a suitable ball bearing grease. In normal applications, relubrication is not necessary.

Housing, grey cast iron. Bearing, ballbearing steel 100Cr6. Seal, rubber NBR. Pillow block bearings consist of a sealed singlerow ball bearing with a spherical outer ring which is mounted in a housing. Because of the spherical outer surface of the bearing, shaft misalignment can be compensated for. The bearings are manufactured with a plus tolerance. This results in transition or press fits when using shafts with htolerances. The shaft is secured by grub screws on the inner ring. In normal applications, pillow block bearings are maintenancefree due to the lifetime lubrication. In difficult environmental conditions relubrication can be carried out over the grease nipple. All housing dimensions are nominal dimensions for which the usual casting tolerances must be taken into consideration.

The axis height of the spindle bearings matches the fixed bearing unit 2407801. The floating bearing units consist of a housing with deep groove ball bearing, which adapts axially to the linear expansion of the spindle.

Housing washer, shaft washer and rolling elements, bearing steel. Cage, steel. Note Axial ball bearings accept high axial loads from one direction but may not be loaded radially. The bearings are separable. This means the bearing parts can be fitted independently of each other. The main dimensions of the axial ball bearing conform to ISO 104 and DIN 711. Dimensional and running tolerances correspond to tolerance class PN acc. to DIN 620. These tolerance classes are standard and are well suited for most applications.

Steel housing. Nitrile rubber seal. Preloaded highaccuracy bearings with a 60° thrust angle. The bearings accept both radial and axial forces from both directions. Due to their preload, the angular contact ball bearings provide a high level of stiffness, excellent concentricity, precise tool positioning and repeatability. The integrated lowfriction seal effectively keeps dirt away from the bearing, thereby ensuring excellent operating safety and a long service life. The bearing friction coefficient Mrl is a reference value. The moment of inertia corresponds to that of the rotating inner ring. The limiting speeds are applicable after grease is applied. Technical data All bearings are supplied ready for mounting with lubricating grease type KE2P35 acc. to DIN 51825. Housing and shaft tolerances correspond to roundness tolerance class IT2 and perpendicularity tolerance class IT4.

Ceramic bearings Si3N4. Bearing cage PTFE. For most applications Si3N4 is the preferred material for ceramic bearings. Silicon nitride bearings are light, very hard and highly wear resistant. High and ultrahigh performance bearings are used in e.g. aerospace technology, metal production industries (high application temperatures), machine manufacturing, chemical industries (chemically aggresive substances), pharmaceutical and medical industries, semiconductor and biotechnology (clean room enviroments which may not be contaminated by lubricants). On request Special version with PEEK ball cage. Without ball cage.

Inner ring, outer ring and rolling elements, bearing steel. Cage sheet steel. Labyrinth seal sheet steel. Lip seal NBR. Version 2Z = sealed both sides with noncontact labyrinth seals. 2RSR = sealed both sides with contact lip seals. Note Deep groove ball bearings accept high radial and axial loads. Axial loads are absorbed in both directions. The versions 2Z and 2RSR are lubricated for life with a high quality grease. The main dimensions of the deep groove ball bearings conform to DIN 6251. Dimensional and running tolerances correspond to tolerance class PN acc. to DIN 620. The radial internal clearance corresponds to the clearance CN acc. to DIN 6204. These tolerance classes are standard and well suited for most applications.

Standard HTD profile with metric pitch (rounded toothing). At least one toothed belt pulley must have a rim flange. Conical hole for taper clamping bushes. The taper clamping bushes must be ordered separately and are available for various shaft diameters. Pulleys with a taper hole are statically balanced as per ISO 1940 grade G16.

Steel. Toothed pulleys without aluminium rim flanges. Version Steel phosphated. Aluminium bright. Note Standard HTD profile with metric pitch (halfround toothing). At least one belt pulley must have a rim flange. The toothed belt pulleys have a centre bore or a pilot hole (this can vary due to manufacturing methods). For this reason, the dimension D2 max. given in the table is the maximum diameter of the bore with which the toothed belt pulleys are supplied. This pilot/centre bore can be amended by the customer to produce a reamed bore, reamed bore with keyway or a tapped hole. Alternatively, customers can also use bushes to reduce the bore diameter. The pulleys may be recessed on the sides.

Aluminium. Rim flanges, steel. Version Aluminium bright. Steel electro zincplated. Note Standard T profile acc. to DIN 7721 T2 with metric pitch (trapezoidal toothing). At least one belt pulley must have a rim flange. The toothed belt pulleys have a centre bore or a pilot hole (this can vary due to manufacturing methods). For this reason, the dimension D2 max. given in the table is the maximum diameter of the bore with which the toothed belt pulleys are supplied. This pilot/centre bore can be amended by the customer to produce a reamed bore, reamed bore with keyway or a tapped hole. Alternatively, customers can also use bushes to reduce the bore diameter.

Polyethylene PEUHMW (ultrahigh molecular weight polyethylene). Glide rails for roller chains as defined in DIN ISO 606. These support and guide the roller chains on the return side, thus extending useful life by significantly reducing wear on the roller chains. They reduce vibrations and noise in the chain drive. These glide rails have high abrasion and wear resistance. They are maintenancefree, acidproof and have high chemical resistance. The additional C profiles are used for fastening to the system substructure and they protect the glide rails from lateral forces and torsion. Assembly The glide rails are pushed into the C profiles fastened to the system. The glide rails must be mounted so that the material is allowed to expand. A property of thermoplastic materials is that they expand or contract more than metals when there are temperature variations.

The readytoinstall compact linear housing consists of extruded aluminium housing, installed linear ball bearing 2151102 and doublesided seal. Recommended shaft tolerance h6. Load rating according to specification of the linear ball bearing. With lubrication hole M8x1. Accessory Precision guide shafts 21595. Fastening screws 07160.

Housing steel. Cage plastic. Balls steel. Note The linear ball bearings correspond to series 3 of ISO 10285. With doublesided seal. The linear ball bearings have a plastic cage which results in quiet and outstanding running properties. With flange for direct mounting on the housing. Linear ball bearings with doublesided seal should be greased before installation. The specified load ratings apply with the use of hardened and ground shafts. Precision guide shafts 21595. Fastening screws 07160.

Sold in pairs. Fastening material included. Note As an option for floor, platform or side mounting.

Slides steel. Ball cages steel. Balls, steel. Version Slides electro zincplated. Ball cages, electro zincplated. Balls hardened. Note for ordering Sold in pairs. Note On telescopic slides with partial extension both sides, the travel is less than the installed length. Latches in open position on both sides. The dynamic load capacity of the telescopic slides indicates the maximum load rating of a vertically mounted slide pair when the entire extension length is used. The load capacity specified is calculated with a slide spacing of 450 mm and is based on the maximum value with 50,000 cycles. The load capacity is ca. 75% lower by horizontal mounting. The head height of the fastening screws should not exceed 2.5 mm otherwise there is a risk of collision with other parts of the slide. Advantages Pulls out in both directions Latches in open position on both sides Light running

Slides steel. Ball cages steel. Balls, steel. Version Slides electro zincplated. Ball cages, electro zincplated. Balls hardened. Note for ordering Sold in pairs. Note By telescopic slides with full extension, the travel is roughly equal to the installed length, which ensures greater comfort and accessibility. The dynamic load capacity of the telescopic slides indicates the maximum load rating of a vertically mounted slide pair when the entire extension length is used. The load capacity specified is calculated with a slide spacing of 450 mm and is based on the maximum value with 80,000 cycles. Not suitable for horizontal mounting. The head height of the fastening screws should not exceed 1.8 mm otherwise there is a risk of collision with other parts of the slide. Advantages Low slide thickness Light running Precise guidance for high lateral stability

Electro zincplated. Tracks inductively hardened and ground. Note for ordering Fastening screws are supplied. Note Compact Cprofile guide rails with internal hardened tracks. The system runs with low noise even under heavy loads. There is play between the screw and the fastening hole to allow the rail to be aligned during installation. To achieve the desired running properties there must always be a film of lubricant between track and roller, this also provides corrosion protection for the ground tracks. On request Lengths up to max. 4080 mm.

Race body steel. Wipers plastic/felt. Longitudinal sealing lips rubber. Rollers steel 1.3505. Note Roller carriage with lifetimelubrication roller bearings and wipers which lubricate the system when moving. By simply moving the centre cam roller, the roller carriage can be adjusted so that it is free of play or has the desired pretension in the rail. High travel speeds up to 7 m/s and extremely quiet (faster and quieter than systems that use recirculating balls). The wipers are fitted with an oilsoaked felt. This felt is in constant contact with the track to ensure perfect lubrication. The felts can be recharged using an oil pump through the lubrication points on the front. On request Roller carriages with 4 or 5 rollers.

Housing aluminium. Precision tube nickel plated steel. Trapezoidal thread spindle steel. Note The doubletube linear actuator can be operated manually or electrically. Due to the short duty cycle, the units can be adjusted several times a day at low speed and with high stability. Width, length and height adjustment possible.

Aluminium outer ring and inner ring. Iglidur® J plastic slide elements. Stainless steel A2 screws. Version Anodised outer ring and inner ring. Note Aluminium plain bearings with replaceable, high performance material glide elements for rotary stages. Such a combination of materials guarantees absolutely lubricant and maintenancefree running. Simple assembly. High wear resistance. For high loads, high rigidity.

Carriage body zinc. Plastic bearing material iglidur® J. Rails anodised aluminium. Version Body chromed. Guide rail natural colour anodised. Note Miniature slide guides are maintenancefree and corrosion resistant. Very high speeds and accelerations are possible due to the low weight. Applicable temperature max. 80 °C. Miniature slide guides are insensitive to dust and are ideal for dry running. ** length L2 = 30 mm and * L = 1000 mm included L2 and L only available in full mm.

The cable clip is a fastening component for cables and hoses with a diameter up to 12 mm. The clip is mounted by inserting the Tkey into a Tslot and twisting through 90°. The cables are held in place by the stretched Oring. Form A with one channel. Form B with two separate channels.

Housing glassbead reinforced polyamide. Rollers POM. Screws steel. Version Housing and rollers black. Screws electro zincplated. Note The roller elements are ideal for constructing roller conveyors in any length and width. Suitable for aluminium profiles types B and I. The sprung guide tabs underneath universally match slots sized 8 and 10. Mounting Form A Insert the lower housing part with rollers into the aluminium profile slot. Set the spread pins on the upper housing part into the lower housing part and press down. The spread pins expand the clamps and locks the roller element in the slot. Mounting Form B Insert the lower housing part with rollers into the aluminium profile slot. Set the upper housing part on top and press down. Knocking or screwing the screws in locks and clamps the roller element in the slot.

These brackets are used to hang aluminium profiles for roller rails in a round profile. A mounting set is supplied.

ETK mainly produce good quality of pillow block bearing in China,with more than 20 years experiences ,can produce both housing casting & bearing production . ETK has its own R& D center and testing Lab.