Analisis Pengencangan Baut U-bolt Bracket Rear Axle Dengan Impact Pneumatic

Aditama, Reka (2026) Analisis Pengencangan Baut U-bolt Bracket Rear Axle Dengan Impact Pneumatic. Sarjana (S1) thesis, Universitas Muhammadiyah Indonesia.

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Abstract

Tightening the U-bolt on the rear axle bracket is an important process in the vehicle suspension system because it affects the clamping force (preload) which determines the strength of the connection. This study aims to analyze the characteristics of tightening Bolt U-bolt M20 × 1.5 property class 10.9 using impact pneumatic with direct contact, with washer, and lubricated treatment variations, and compare the test results with theoretical calculations. The research method used is the experimental method with eight specimens in each variation of treatment. The theoretical calculation is based on ISO 898-1 standard, while the test is carried out using impact pneumatic wrench with the same test conditions on each variation. The parameters analyzed include torque and tightening angle. The results showed an average actual torque of 540.79 Nm in direct contact, 342.50 Nm in with washer, and 540.52 Nm in lubricated. The average actual angles obtained are 54.13°, 45.63°, and 54.38°, respectively. Lubricated variation has the smallest torque difference to the theoretical value, which is 69.03 Nm (11.32%), while direct contact produces the smallest angular deviation of 51.19° (48.60%). The results showed that the variation of Bolt treatment affects the torque characteristics and tightening angle so that it needs to be considered in obtaining optimal connection quality.
Keywords: U-bolt, bracket rear axle, impact pneumatic, tightening torque, tightening angle.

Item Type:	Thesis (TA, Skripsi, Tesis, Disertasi) (Sarjana (S1))
Contributors/Dosen Pembimbing,NIDN Dosen bisa diakses di LINK https://bit.ly/NIDNdosenunismabekasi:	Contribution Contributors / Dosen Pembimbing NIDN UNSPECIFIED Handoyo, Yopi 0429068003 UNSPECIFIED Rahmanto, R. Hengky 0426018204
Keywords / Kata Kunci:	Keywords: U-bolt, bracket rear axle, impact pneumatic, tightening torque, tightening angle.
Subjects:	Manufaktur
Faculty:	Fakultas Teknik > Teknik Mesin S1
Depositing User:	Mr Reka Aditama
Date Deposited:	19 Aug 2026 07:53
Last Modified:	19 Aug 2026 07:53
URI:	http://repository.umindonesia.ac.id/id/eprint/10680

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