What is the purpose of the lock collar on a pillow block bearing?

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Prepare for the Industrial Maintenance Test with study guides, flashcards, and multiple-choice questions. Each question includes hints and explanations to help you succeed. Master the concepts and ace your exam!

Multiple Choice

What is the purpose of the lock collar on a pillow block bearing?

Explanation:
The main idea is that the lock collar serves to fix the shaft to the bearing, preventing axial movement and keeping the bearing properly seated and aligned. Tightening the collar clamps onto the shaft so the inner race cannot slide along the shaft, which maintains correct spacing and reduces wear during operation. It isn’t for adjusting belt tension, lubrication, or measuring shaft diameter—those tasks are handled by pulleys/tensioners, lubrication points on the bearing, and measuring tools, respectively.

The main idea is that the lock collar serves to fix the shaft to the bearing, preventing axial movement and keeping the bearing properly seated and aligned. Tightening the collar clamps onto the shaft so the inner race cannot slide along the shaft, which maintains correct spacing and reduces wear during operation. It isn’t for adjusting belt tension, lubrication, or measuring shaft diameter—those tasks are handled by pulleys/tensioners, lubrication points on the bearing, and measuring tools, respectively.

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