Here are some key research papers on slewing bearing raceway quenching:

1. NUMERICAL SIMULATION OF CASE HARDENING OF LARGE DIAMETER BEARINGS
   Authors: M.S. Starvin, K. Manisekar, S. Babu
   Summary: This paper explores the numerical simulation of case hardening of large slewing bearing raceways, emphasizing local plastic deformations.
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2. Load capacity of a three-row roller slewing bearing raceway
   Authors: P. Göncz, R. Potofinik, S. Glodež
   Published in: Procedia Engineering, 2011
   Summary: Analyzes the load capacity of a slewing bearing raceway with induction quenching, presenting key mechanical properties.
   Cited by 29

3. Modelling and Analysis of Slewing Bearings with Quenched Soft Zone
   Authors: J. Gui, G. Wang, X. Tang, Z. Zhou
   Summary: Focuses on load distribution in slewing bearings, considering the soft zone created by the quenching process.
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4. A life test method and result analysis for slewing bearings in wind turbines
   Authors: H. Zong, H. Wang, S. Tian
   Published in: Proceedings of the Institution of Mechanical Engineers, 2015
   Summary: Describes how moving the quenching soft belt to low-load regions can improve slewing bearing performance.
   Cited by 8

5. Fatigue life of double row slewing ball bearing with irregular geometry
   Authors: P. Göncz, S. Glodež
   Published in: Procedia Engineering, 2010
   Summary: Investigates the impact of insufficient hardening depth on the fatigue life of slewing bearings.
   Cited by 77

These papers provide insights into the effects of quenching and hardening on slewing bearing raceways, including mechanical properties, load distribution, and fatigue life.