REDESIGN SHOE UNTUK MENGURANGI CACAT SHOE MARK BEARING TIPE 6201

HIDAYATULLOH, LANTIP (2021) REDESIGN SHOE UNTUK MENGURANGI CACAT SHOE MARK BEARING TIPE 6201. S1 thesis, Universitas Mercu Buana Jakarta.

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Abstract

Outering raceway grinding is one of the stages of the bearing manufacturing process. This process is a grinding process on the outer ring raceway or can be referred to as the ball path groove on the outer ring of a bearing. However, there are some shoe mark defects during the outering raceway grinding process. The shoe mark defects that occur in the period January 2020 to June 2020 are an average of 0.95%, and the target should be 0.01%. During this period the company suffered a loss of Rp. 109,120,000. In this study direct observation of the production process of the 6201 type outer ring bearing at PT XYZ Indonesia, data collection in the field, team discussions, data analysis, and applying proposed improvements that must be made. The improvement redesign shoe resulted in a decrease in the average shoe mark defect that occurred at 0.02% initially at 0.95%, where the amount was close to the target set by the company, which amounted to 0.01%. Keywords: Shoe Mark; Outer Ring; Bakelite; 6201 Outering raceway grinding adalah salah satu tahapan proses dalam pembuatan bearing. Proses tersebut merupakan proses penggerindaan pada raceway ring luar atau bisa disebut sebagai alur jalur bola pada ring luar sebuah bearing. Namun ada beberapa cacat shoe mark pada saat proses outering raceway grinding. Cacat shoe mark yang terjadi dalam periode bulan Januari 2020 hingga Juni 2020 sebesar rata – rata 0,95%, dan target seharusnya adalah sebesar 0,01%. Dalam kurun waktu tersebut perusahaan mengalami kerugian sebesar Rp 109.120.000,-. Dalam penelitian ini dilakukan pengamatan langsung proses produksi outer ring bearing tipe 6201 di PT XYZ Indonesia, pengumpulan data di lapangan, diskusi bersama team, analisa data, dan menerapkan usulan perbaikan yang harus dilakukan. Perbaikan redesign shoe yang dilakukan menghasilkan penurunan rata – rata cacat shoe mark yang terjadi menjadi 0,02% yang awalnya sebesar 0,95%, dimana jumlah tersebut sudah mendekati target yang ditentukan perusahaan, yaitu sebesar 0,01%. Kata kunci: Shoe Mark; Outer Ring; Bakelite; 6201

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