according to the selection specifications in the TSCHAN catalogue TSCHAN® TORMAX Catalogue), with an application factor appropriate to the respective operating conditions. Material. Call: 0800 8766 441 Email us RINGFEDER TNZ gear couplings (formerly TSCHAN POSIFLEX) are all-metal torsionally rigid gear couplings enabling the transmission of the highest torques with small installation dimensions. stands for torsionally rigid, elastic couplings as well as safety couplings in the lower torque range, whereas TSCHAN stands for non-shiftable elastic, highly-elastic and torsionally rigid shaft couplings in the higher torque range. Long Description. Puncture proof steel claw coupling, with elastic intermediate ring for absorbing torque peaks. 3406570. The primary wheel (red) is connected to the motor and acts like a rotary pump, while the secondary wheel (blue) is connected to the driven machine and acts like a turbine. FLUID COUPLINGS Catalog FLE 10. <br /> • The maximum misalignment combined of the radial and angular offset must not exceed If a shrink fi t is used as hub-shaft connection we have to check its infl uence on the functional necessary gap in the barrel coupling. In the interest of further development, we reserve the right to carry out modifications serving the technical progress. By virtue of the rotational resilience of the coupling, dangerous torsional vibrations from […] Flexible couplings, rigid couplings, industrial clutches and brakes, shaft systems, backstops and resilient mounts are all available now that we are a distributor for Vulkan. The operating characteristics of a fluid coupling (a TSCHAN® Elastomer Jaw Couplings Type Nor-Mex® H Subject to technical change. Type . FASTENING WASHER FOR DENTATED COUPLING. ® For determining the size of the coupling according to catalogue POSIMIN Attention on peak load - take into account maximum torque notified in the Nor-Mex® catalogue - data overview page 11 TSCHAN couplings & drives It isn’t always easy to select a coupling for your heavy-duty application. DESCRIPTION: KTR BoWex Design M & I: Nylon sleeve for shaft distance dimension E = 4 mm. カタログ. If a pre-defined torque limit value is exceeded, the coupling halves and thus the input and output sides are separated quickly and We are a comprehensive manufacturer of rubber and plastics, including transmission belts used in automobiles, precision equipment, agricultural machinery, transport belts used in factories and distribution warehouses, waterproof sheets for construction, water-impervious sheets for civil engineering, and engineering plastics. Download RINGFEDER® Product and Tech Papers, brochures, instruction manuals, certificates and other documents quickly and easily. Product Details. - 13 sizes of 50 up to 400 mm. Estimating the life of a jaw coupling is difficult as it is application specific. BoWex Design MC with sleeves made from carbon fiberstrengthened polyamide: transmits Shaft Coupling Description. Platonos 10441, Athens, Greece to be designed e. External diameters up to [mm] 900. Inner Code. Whether you’re in manufacturing, automotive, or any other sector, the Tschan Nor-Mex-TNM-G265 is designed to enhance operational efficiency and reduce downtime. SKU: rubb0430145 The TSCHAN ®-S SV coupling is a torsionally flexible, puncture proof claw coupling which is particularly suited for use with hydrodynamic high-speed couplings. - Various the coupling hub has to be verified by the user of the coupling according to recognized rules of technology. tschan. Maintenance free. Call: 0800 8766 441 Email us The coupling can be used in any direction of rotation and each installation position. Inquire about the couplings via the inquiry form provided here. (815) 434-1282. We develop, manufacture and supply superior Shaft-Hub Connections, Damping Components, Couplings, Brake Systems and Bearing Housings for highest functionality and durability requirements in a wide range of technology sectors worldwide. the coupling hub has to be verified by the user of the coupling according to recognized rules of technology. 00 from Sarana Teknik Coupling. | E RUBBER GR Address: Serron 4 Street, Ak. Speed [1/min] 1800 - 7600 Geometry/dimensions . Nominal torque up to 135600 Nm. The puncture-proof and torsionally flexible couplings The hydrodynamic principle. TNM coupling can be used for both directions of rotation and each mounting position. 「tschan™」「nor-mex™」德国ringfederpowertransmissiontschangmbh公司的注册商标。压缩应力型，包括一个特殊形状的弹性体和法兰，以 TSCHAN ®-B . Coupling Element; NBR Material; Elastic Intermediate Ring; 168 Size; For Nor-Mex Coupling. Hydrodynamic couplings transmit mechanical power from the motor to the driven machine via fluid flow via two bladed wheels positioned face to face. Call: 0800 8766 441 Email us Contact us. - ATEX version. Hub drilling up to diameter 240 mm. Please contact us to request a price quote for Tschan - ZEABUU-130 E5, or for any other model as well. Technical specification. Platonos 10441, Athens, Greece To review how and why jaw couplings wear out, please read: Coupling Failure Analysis – Jaw Couplings (includes hub & spider photos). Their FLEXOMAX GSN interchange with Tschan-S. TSCHAN GmbH Zweibrücker Straße 104 D-66538 Neunkirchen-Saar Telefon: +49(0) 6821 866 0 Telefax: +49(0) 6821 883 53 www. MACHINE PARTS : MITSIBISHI GEAR COUPLING. The TSCHAN ® -S coupling is a torsionally flexible, shock-proof claw coupling. to DIN 6885-1, keyway side fit P9, bore tolerance H7 Size 2 Supplier TSCHAN TNM GHBS Flexible Coupling, coupling torque limit, Overload. TSCHAN. Consult TSCHAN GmbH in such cases. The coupling transfers the torque via pressure loadable, elastic buffers of TSCHAN Nor-Mex® ¤ T ^ 1) incl. Torque [Nm] 2500 - 550000. coupling parts as bolts and sealings and are dangerous for the reliability of the coupling. If the coupling has been dimensioned by means of the TSCHAN Design Programme, deviations from these values may be permissible. Part of the Ringfeder group, TSCHAN® doesn’t compromise when it comes to quality. C. Company Details Legal Name: PERROS A. Platonos 10441, Athens, Greece KTR BOWEX M NYLON SLEEVE GEAR COUPLINGS. de BAWB 001-GBR-0 06/2004 Installation and Operation Manual TSCHAN® Flexible Coupling TSCHAN®-B BH Our experienced couplings & drives specialists are on hand to offer practical solutions to your problems and can assist with an on-site visit. These buffers come in For determining the size of the coupling according to DIN 740 part 2 (or to catalogue TSCHAN®-B) various factors have to be taken into account: - the temperature factor Sυ in case of higher temperatures, - the start-up factor Sz depending on the frequency of starts, - the shock factor S A, S L depending on the service conditions. 9 at the minimum. In order to ensure trouble-free and reliable performance of the coupling, the coupling has to be designed according to the selection specifications, e. It compensates for angular, radial and axial shaft misalignments within defined limits. RINGFEDER FLEXIBLE JAW COUPLING NOR-MEX G (TNM G) DESCRIPTION: Multi-part design, elastic ring can be replaced without having to axially move the machine. de BAWS 001-GBR-1 08/2006 Installation and Operation Manual TSCHAN® Flexible Coupling TSCHAN®-S S-St, S-LSt RINGFEDER POWER TRANSMISSION GMBH Gear Couplings TNZ. . RINGFEDER TNB (formerly TSCHAN-B) elastic couplings are designed for the highest requirements in a wide range of industries, especially for crushers, turbines, generators, compressors, conveyors and many other machines. We advise to balan-ce the coupling parts or sub assemblies if the circum ferential We are a comprehensive manufacturer of rubber and plastics, including transmission belts used in automobiles, precision equipment, agricultural machinery, transport belts used in factories and distribution warehouses, waterproof sheets for construction, water-impervious sheets for civil engineering, and engineering plastics. The coupling transmits torque through elastic buffers loaded in shear. With the TSCHAN ® -S coupling, the torque is transmitted via a compressed elastic intermediate ring. The coupling Nor-Mex®G is a torsionally elastic and puncture-proof claw coupling. TSCHAN couplings are mainly used in heavy engineering, such as mining and construction machinery, iron and steel manufacturing Image Locking Assemblies RINGFEDER® RfN 7012. oof a nylon chain and a pair of coupling f a nylon chain and a pair of coupling ssprockets. It’s about forming a partnership with a team that’s committed to understanding and TSCHAN GmbH Zweibrücker Straße 104 D-66538 Neunkirchen-Saar Telefon: +49(0) 6821 866 0 Telefax: +49(0) 6821 883 53 www. 1 Intended Application • The coupling must only be operated in normal industrial atmospheres. - Oil resistant. 1) Mass information for unbored coupling parts 2) Attention on peak load - take into account maximum torque notified in the Nor-Mex® catalogue - data overview page 11 3) Set screw on demand Ordering example:Nor-Mex® H Identifier Pb d1f d2f Further details*) WN0714 Tschan manufacture a large range of :- Couplings. The values for max. O. 4 Edition 2023 EN Introduction E E Torsionally Rigid Gear Couplings ZAPEX ZW 4 4 ZAPEX ZN 5 5 Torsionally Rigid All-Steel Couplings N-ARPEX, ARPEX 6 6 We are a comprehensive manufacturer of rubber and plastics, including transmission belts used in automobiles, precision equipment, agricultural machinery, transport belts used in factories and distribution warehouses, waterproof sheets for construction, water-impervious sheets for civil engineering, and engineering plastics. 圧縮応力型で、大きな伝達トルクに耐える特殊形状の弾性体とフランジからなります。. RPT TSCHAN. S-145 Coupling (AFM) interchangeable with Tschan-S 145 Elastic Ring Coupling. the half share of the elastic transitional rings, unbored 2) based on not drilled couplings. R+W ZA and ZAE line shaft couplings are available in lengths up to 6 meters (19. The coupling must only be operated in normal industrial atmospheres. The elastic claw coupling, machined on all sides, for high torque levels and high revolutions. Tschan’s -S SV flexible coupling is ideally used in applications featuring hydrodynamic high speed couplings as NORMEX 194 ELEMENT-PB72 TSCHAN | Shaft Couplings NORMEX 194 ELEMENT-PB72. TSCHAN Nor-Mex Series high-speed couplings have a compact design and maintenance-free performance, efficiently transmitting large torque. gantry cranes, torsional highly flexible couplings and resilient mounts for construction ma-chinery underline the wide product portfolio and engineering capacity of VULKAN Drive Tech. Misalignments can be caused, for example , by inaccurate assembly or heat movements. Transmission element . the motor driving the fluid coupling is started, accelerates to its base speed, and is not subject to speed variation about its base speed . See catalog ‘Coupling Size Selection’. Tschan-S, Nor-Mex, Tschan-B, Tschan B-Xxtreme-Torque, Posimin, Posiflex, Rollastic, Barrel Coupling. Rotech systems offers an extensive range of Couplings, being agents for many well-known brand names, thus whatever couplings are required we will be able to offer the advise and correct coupling to suit the specific requirement. The ECOLOC brand includes cost-efficient alternatives from the premium range available for standard use. at BDIExpress. Other alignment techniques are also appropriate as long as the maximum permissible TSChan Normex Coupling Type E-G-H Produk Berkualitas, Harga Murah oleh PT. Formerly it was sold under the TSCHAN NORMEX designation. according to the selection specifications in the TSCHAN catalogue POSIFLEX® using a service factor that is appropriate to the operation conditions. Highest safety for extreme requirements: Our mechanical safety couplings of the RINGFEDER ® TNT series – previously TSCHAN ® TNT – are specially designed for overload protection in the heavy-duty industry. Lihat Selengkapnya. e . - Withstands temperatures between -30°C to +100°C. TSCHAN NORMEX 168 ELEMENT-PB82 Buy online from BDI – Bearing Distributors, Inc. Installation and Operation Manual TSCHAN® Flexible Coupling. In assembled condition the sleeve cannot be displaced axially. We advise to balan-ce the coupling parts or sub assemblies if the circum ferential Tschan Ringfeder TND. The enterprise's specialists strive to merge technological proficiency with economic efficiency, resulting in a high-value product portfolio that both new and loyal customers across Dimensioning of coupling - design directives The dimensioning of the elastic TSCHAN® couplings is based on the nominal torque TN and maximum impact torque Tmax of the ma-chines. The elastic intermediate ring absorbs shocks and torsional vibrations, is RINGFEDER TNM (formerly TSCHAN NORMEX) elastic couplings are designed for the highest requirements in a wide range of industries, especially for compressors, pumps, conveyors and many other machines. 601 Dayton Road. P. It compensates angular, radial and axial shaft misalignment within specified tolerances. Attention on peak load - take into account maximum torque notified in the Nor-Mex® catalogue - data overview page 11 Our world-leading Elastomer Jaw Couplings of the RINGFEDER ® GWE, TNM, TNS and TNB series – originating in the proven GERWAH ® and TSCHAN ® series – meet the highest performance and durability requirements in a wide range of sectors, e. For the standard couplings TK the connecting bolts have to be of grade 8. この製品についてのお問い合わせ. The Tschan-S coupling is a torsionally flexible, shock-proof jaw coupling which compensates angular, radial & axial shaft misalignment within specified tolerances. Bores up to [mm] 400. Call: 0800 8766 441 Email us As one of the leading providers in non-shiftable shaft couplings, Tschan GmbH is globally recognized for delivering economically optimized coupling technology. g. If necessary, the second key is to be offset by 180°. the half-key convention applies, so that the coupling hubs are ba-lanced prior to producing the keyways. - Bores up to 160 mm. A slip-fi tted couple pin allows for tted couple pin allows for eeasy assembly and disassembly. The middle link serves for the axial securement of the sleeve. Polyurethane elastomers (VkR) are oil resistant & withstand. 2. The hubs of the Posiflex are extra special as they can move spatially within the housing and thus they too can compensate for any angular, radial or axial misalignment of the adjoined shaft ends. Innovative, non-shiftable Torsional Highflex Couplings of the RINGFEDER ® TNR series – well-known as TSCHAN ® TNR – allow for the flexible adjustment of dynamic torsional spring stiffness – and thus a smoother start-up and a vibration-optimised operation of the entire drive train. NORMEX 168 ELEMENT-PB82 TSCHAN | Shaft Couplings NORMEX 168 ELEMENT-PB82. High-strength Elastomer Jaw Couplings of the proven RINGFEDER ® TNB series – once TSCHAN ® TNB – convince globally in the most demanding heavy-duty applications by superior durability and functionality – for maximum operational reliability of the machines and plants of their users. - Torque of 0. de BAWB 006 -GBR-1 08/2008 Installation and Operation Manual TSCHAN® Flexible Coupling TSCHAN®-B BHDD, BHDDV BHDDVV RINGFEDER POWER TRANSMISSION GMBH MITSUBOSHI CHEMI CHAN Coupling HAS V819CP-C （設計資料） Coupling MITSUBOSHI-TSCHAN Coupling Nor-Mex Series MITSUBOSHI-TSCHAN Coupling S Series MITSUBOSHI-Hyper Flex Coupling G LG FG S SX MT MH E LE FE SV SZ 高機能 ( ) 小 型 ( ) 直結伝動 フレキシブル Couplings. To insure maximum life, proper alignment is necessary. Robust design Phone: +27 (0) 11 640-5111 Phone: +27 (0) 11 786-2335 Phone: +27 (0) 11 640-3051/2 Phone: +27 (0) 11 640-4615/6 Fax: +27 (0) 11 640-3028 Fax: +27 (0) 11 485-1247 The rotationally resilient coupling of the TSCHAN Nor-Mex series is flexible in all directions and therefore compensates for angular, parallel and axial shaft misalignments of the connected machines. Shaft couplings are available in a variety of series and designs, from the smallest elastic and bellows couplings to the largest gear, disc and special shaft couplings. Contains: TSCHAN®TNS, TSCHAN has to be taken when determining the coupling size. • The coupling can be used at ambient temperatures of 60 °C, or up to a maximum of 90 °C, taking the appropriate temperature factors into consideration. These torsionally flexible and fail-safe quality couplings are TSCHAN-S. Pressurised buffers. Please consult TSCHAN GmbH, if this has not been considered when selecting the coupling. TSCHAN products have a proven track record throughout the world in various technological applications: in the metal and steel industry, in transport systems, power generation, diesel-electric generators, mining machinery and in specialist solutions that use special drive in technology systems. The coupling shall be operated, mounted, maintained and repaired by authorized, trained and instructed personnel only. RINGFEDER TNM is torsionally flexible, puncture-proof shaft coupling. Call: 0800 8766 441 Email us ZEABUU-130 E5. The rotationally resilient coupling of the TSCHAN® TNM series is flexible in all directions and therefore compensates for angular, parallel and axial shaft misalignments of the connected machines. NORMEX 194 BET Buy online from BDI – Bearing Distributors, Inc. Since aggressive media may attack the coupling components, screws and elastic buffer rings, they repre-sent a risk for the operational safety of the coupling. Ottawa, Illinois 61350 USA. TSCHAN®カップリングNorMex®シリーズ. Tschan Coupling S [MITSUBOSHI] มีขนาดเล็กแต่สามารถส่งกำลังแรงบิดได้สูง มี Torsional Highflex Couplings TNR. according to DIN 740, part 2, (or acc. Get In Touch. Luckily, TSCHAN® offers a high-performance range of robust couplings which are designed to excel in even the most demanding of conditions. TN = Nominal torque of machine [Nm] PN = Machine power [kW] nN = Operating speed [min-1] N = 9550 · PN / nN (1) Bei Beanspruchung durch das Nenndrehmoment gilt: Our experienced couplings & drives specialists are on hand to offer practical solutions to your problems and can assist with an on-site visit. • The standard model can compensate for cardan shaft angles of up to 13°. Sarana Teknik Indonesia di Kota Administrasi Jakarta Barat - DKI Jakarta Cek Produk DKI Jakarta Lainnya di Indonetwork. 6 up to 40000 Nm. to catalogue TSCHAN -S), with a service factor appropriate to the service conditions. They are therefore supplied as semi-finished products and the bore must be adjusted before mounting the coupling on the shafts. Vibration damping, rotationally resilient, fail-safe, misalignment compensating: Elastomer Jaw Couplings of the RINGFEDER ® TNM series – previously TSCHAN ® TNM and NOR-MEX ® – set standards worldwide in terms of flexibility, cost-effectiveness and performance. • Check whether balancing is necessary. Sell MITSUBISHI GEAR COUPLING MT SSA SSB at a price of Rp 100. RINGFEDER (formerly TSCHAN) couplings are shaft couplings of the German manufacturer RINGFEDER designed for the transmission of high torques and speeds. mblusa. Torsionally rigid and backlash-free steel plate coupling. The Nylon CChain Coupling is ideal for application in the hain Coupling is ideal for application Company Details Legal Name: PERROS A. Ordering example:TSCHAN ® S-LSt Identifier Size d1f d2f Further details*) WS0117-L 170 75 75 * *) Without any other specification, we deliver as a standard: with set screws and keyway acc. The optimum RINGFEDER TNM (formerly TSCHAN NORMEX) elastic couplings are designed for the highest requirements in a wide range of industries, especially for compressors, pumps, conveyors and many other machines. Couplings Fields of Use. torque, max. 「TSCHAN®」「Nor-Mex®」はドイツのRINGFEDER POWER TRANSMISSION TSCHAN GMBH社の登録商標です。. Coupling hub, part 101 and claw ring, part 102 of soft cast iron, size 480 and 575 of nodular graphite iron. com. TSCHAN Couplings. It balances out angular, radial, and axial shaft misalignments within defined limits. BAWS 010-GBR-1. Call: 0800 8766 441 Email us RINGFEDER TSCHAN S 125 Elastic Ring Coupling. TSCHAN GMBH, a member of the Ringfeder Power Transmission group based in Darmstadt (Germany), produces a wide range of transmission couplings, optimized to meet the needs of customers all over the world. • Observe the maximum permissible speed of the coupling. It levels out angular, radial and axial shaft misalignments within defined ranges. RINGFEDER TNM (formerly TSCHAN NORMEX) elastic couplings are designed for the highest requirements in a wide range of industries, especially for compressors, pumps, conveyors and many other machines. Open the catalog to page 5. websupport@mitsuboshi. 1. In order to ensure trouble-free and reliable performance of the coupling, the coupling has to be designed e. <br /> The reference torque TNref used to define the permissible misalignment of the coupling<br /> must be halved. TSCHAN couplings: they can be elastic coupling with dowels, rubber or lamellae. Not Just a Product – A Partnership : Choosing us means more than just purchasing a product. Note . Consult TSCHAN GmbH in these cases. T. Any change in the service conditions or service parameters always necessitates the verifica-tion of the coupling design. Then we will contact you and, if necessary, specify all the technical parameters and tell you Tschan Flexible Couplings. 8 at least. 3) cam ring pushed back to change elastic transitional ring, part 010. This download is only available to logged-in users with Distributor Account. The TSCHAN ®-S SV coupling is a torsionally flexible, puncture proof claw coupling which is particularly suited for use with hydrodynamic high-speed couplings. To dive deeper into this question, check out: Jaw Coupling Question – “How Much Life Can I Expect Out of the Spider”. TNM G 265 Pb82 (82 Shore A, Cast Iron, Formerly NORMEX) is a set of parts for assembling the RINGFEDER TNM shaft coupling. Torsionally rigid and low-backlash gear couplings of the RINGFEDER ® TNZ series – former TSCHAN ® TNZ and POSIFLEX ® – are made of high-strength steel and are proving themselves worldwide in all industrial sectors where extraordinarily high torques must be transmitted from shaft to shaft. The Tschan -S SV coupling is a torsionally flexible and puncture-proof claw coupling available through Tschan suppliers YB Components for fast and free shipping all over the UK and the rest of the world. speed and max. We offer competitive prices, fast delivery and a wide products distribution network in the UK. The connecting bolts of the reinforced design ‘TK V’ have to be of grade 10. A slip-fiprockets. We recommend laser alignment whenever possible. the steel and metal industry, drive and conveyor technology, power generation, machine tool, packaging and printing machine construction as well as speed Variation of Multi-speed Applications – Fluid couplings offered in this catalog are designed to operate on single-speed applications, i . These buffers come in For determining the size of the coupling according to DIN 740, part 2, (or to catalogue TSCHAN ®-S) various factors have to be taken into account: - the temperature factor S υ in case of higher temperatures, - the start-up factor Sz depending on the frequency of starts, - the shock factor S A, S L depending on the service conditions. Rating . TYPE MT SSA SSB 140 160180 200. misalignment as stated in the catalog dimension sheets must not occur simultaneously. Martin Sprocket For determining the size of the coupling according to DIN 740, part 2, (or to catalogue TSCHAN®-S) various factors have to be taken into account: - the temperature factor Sυ in case of higher temperatures, - the start-up factor Sz depending on the frequency of starts, - the shock factor S A, S L depending on the service conditions. The Nylon asy assembly and disassembly. Naismith currently stock and sell their Flexible Couplings FLEXOMAX G which are interchangeable to Tschan Nor-Mex. TNM coupling hubs are made of gray cast iron as unbored. The enormously powerful and resilient Elastomer Jaw Couplings of the RINGFEDER ® TNS series – formerly known as TSCHAN ® TNS – are the preferred choice of leading plant manufacturers and operators, especially in the field of highly demanding heavy-duty applications. The universally applicable couplings compensate for shaft misalignments in » Download Tschan-B catalog; Tschan Normex elastomer claw coupling. Dimensioning example Example for dimensioning a coupling for a pump drive with electric motor type IEC 355; preselected type: TSCHAN® BHDD The dimension of coupling BHDD 300 is OK for the performance data. 7 feet) without intermediate support bearings. Toll Free (877) 625-7832. Call: 0800 8766 441 Email us RINGFEDER POWER TRANSMISSION is the international market leader in niche markets for drive and damping technology. Distributor TSCHAN, Siemens, Ringfeder, GERWAH, ECOLOC, FLENDER, Helmke, Ringspann The Posiflex coupling is another torsionally rigid model, this time featuring a twin cardanic gear coupling. Download Brochure. Page 6 Cpeak Ambient temperatures of –30°C up to +150°C Operation within the range of the specified alignment values. Also available according to API / ATEX regulations. It transmits torque through pressure-stressed elastic buffers connected to each other in an intermediate ring, which absorbs TSCHAN® Elastomer Coupling Type S-LSt Subject to technical change. com TSCHAN™ Coupling Nor-Mex™ consists of a flange and a unique shape elastic body, which withstands large transmission torque. TSCHAN TNS Series Couplings DESCRIPTION: The coupling Ringfeder Nor-Mex H (TNM H) is a torsionally elastic and puncture-proof claw coupling with a removable intermediate piece, mainly for the drives of pumps. BULK MATERIAL HANDLING – Gear couplings, electromagnetic ser - vice brakes, hydraulic emergency brakes, hydraulic rail clamps for E. Link. Weight. Misalignments can be caused, for example, by inaccurate assembly, heat movements or settling phenomena. Our experienced couplings & drives specialists are on hand to offer practical solutions to your problems and can assist with an on-site visit. Elastomer: VKR, Pb82. ef wz en vb yk yk bg ch bz cb