TK PIN COUPLINGS Version EN17.1 / / TEV. MFG Components Oy Pajatie 1, Tohmajärvi

Transcription

1 TK PIN COUPLINGS Version EN17.1 / / TEV MFG Components Oy Pajatie 1, Tohmajärvi mfgcomponents@mfg.fi

2 LINE-UP TK Standard Pin Coupling TKR Pin Coupling with Axial Limitation TKB Pin Coupling with Brake Drum

3 ADVISORY DIMENSIONS MFG TK Pin Coupling Dimensions Given dimensions are for a coupling made from S355 steel. Hub material also affects the bore size D 1 / D2max. Other available materials: - 42CrMo4 QT (TKMOC) - EN-GJS-250 (TKGG) - EN-GJL-500 (TKGRP) - C45 (TKC45) Type T nom T max n max m hub1 m hub2 D 1max D 2max D D n1 D n2 L L n1 /L n2 S min S max B Nm 1 /min. kg mm ,96 1, ,6 1, ,2 3, ,2 4, ,8 6, ,0 8, , , , > > > > > > > > > > > > > > m nhub1 ja mhub 2 values given for a mean bore / JAJ TK Couplings are supplied without any surface treatment. Available treatments: - Painting - Nitriding - Bluing - Parkerizing - Zink Plating Table 1: Dimensions

4 BUFFERS TK Pin Coupling Buffers Dimensions Material Chart Type D d L Code Material Hardness Operating Temp. Code TK NBR* 80 Shore A C -NBR TK EPDM 80 Shore A C -EPDM -1 TK PU 100 Shore A C -PU TK Silicone 80 Shore A C -SIL TK TK TK228 TK285 TK360 TK450 TK560 TK710 TK TK252 TK320 TK400 TK500 TK630 TK800 TK * Standard Material Buffers should be stored separately, if storage requires protecting the metal parts with chemicals. Table 2: Buffers

5 HARDWARE Only DIN standard hardware is used in TK couplings. All hardware should be grade 8.8 or higher. Hardware of a lower grade than the originals should not be used. Standard hardware is either zinc plated or parkerized. Special hardware, such as stainless steel, is available on request. All screws should be torqued according to table 3. Table 3: Tightening Torques

6 MISALIGNMENTS Max. Misalignment Type β X 105 1,09 0, ,92 0, ,80 0, ,06 0, ,97 0, ,87 0, ,75 0, ,68 0, ,60 0, ,54 0, ,48 0, ,43 0, ,38 0, ,34 0, ,41 0, ,36 0, ,32 0, ,29 0, ,32 0, ,29 1,05 Values given in table 4 are valid for a coupling rotating at max / min. If the rotating speed differs from this value, the effect can be calculated with the factor F kv. N F kv / min. 1, / min. 1, / min. 1,00 Max. allowed 1 / min. 0,70 Axial alignment S for each coupling size is given in table 1. Table 4: Alignment Precision Graph 1: Deviations

7 INSTALLATION & MAINTENANCE An incorrectly tightened screw may come loose and damage the coupling or other parts of the drive. Altering the coupling by machining or welding is strictly prohibited. Inaccurate alignment will lead to premature coupling failure. Locking hardware, such as lock nuts, should be replaced if removed. General installation instructions for a TK coupling: - Align the coupled machines according to the values listed in table 3. - Clean the outside of the coupling. - Measure the shaft and the coupling bore to check the fit. - Heat the hub to max. 130 ⁰C if required, and cool the shaft with liquid nitrogen. - Depending on the drive, slide the machines against each other while paying attention to the required distance between shaft ends, S in table 2, and install the pins and buffers, or install the pins and buffers first and then move the machines. - Double check screw tightness and install the coupling cover (Cover sold separately). Servicing a TK coupling: - A TK pin coupling is normally maintenance-free, requiring only visual inspection. - Inspect the rubber buffers for signs of wear, cracks or misformation. A damaged buffer should be replaced with a new one. - To ensure the longevity of the buffers, care should be taken to prevent debris from getting between the buffer and the hub bore.

8 GENERAL WARRANTY TERMS Indirect expenses, such as loss of production, generated from replacing the coupling are not covered. Warranty terms for TK couplings: The customer has provided MFG with adequate data of the drive. Screw tightening torques and alignment precision has been documented during installation. The coupling has been installed in the drive it was first designated for, and the drive has not been altered after designation. Only hardware supplied with the coupling have been used. The coupling has not been damaged during installation by excess heat or by damaging it. The coupling has been stored appropriately, away from solvents and other chemicals. The customer has not altered the coupling by machining, welding, etc. Operating temperature has not exceed the maximum temperature allowed for the type of buffers used.

9 REFERENCES Paper Industry: - Anpap Oy Process Industry: ABB Drives Gearbox Manufactures: Moventas Gears Desch GmbH Mining Industry: FQML Kevitsa Mining