Definition

1. Noun (Mechanical Engineering):
   • Pillow block / Plummer block: A mounted housing or support for a rotating shaft, containing a bearing. It is a stationary unit that provides both support and alignment for the shaft.
   • Bearing housing / Bearing unit: A general term for the assembly that holds a bearing in place, protecting it and securing it to a frame or structure.

Usage Examples

• Noun:
  • Ổ trục mới giúp giảm tiếng ồn và ma sát cho động cơ. (The new pillow block helps reduce noise and friction for the engine.)
  • Cần kiểm tra và bôi trơn ổ trục định kỳ. (The bearing housing needs to be checked and lubricated regularly.)
  • Ổ trục bị hỏng là nguyên nhân gây rung động. (The failed plummer block was the cause of the vibration.)

Advanced Usage

• In industrial contexts, "ổ trục" is a key component in machinery like conveyor systems, electric motors, and turbines. It is often part of a larger "ổ đỡ" (bearing support) system.

Variants and Related Words

• Ổ đỡ (n): Bearing, generally referring to the rolling-element component (e.g., ball bearing, roller bearing) itself, which fits inside the "ổ trục".
• Ổ bi (n): Ball bearing.
• Ổ lăn (n): Roller bearing.

Synonyms

• Bearing housing
• Shaft housing
• Bearing block
• Pedestal bearing

Related Technical Terms

• Trục (n): Shaft. The rotating rod that is supported by the "ổ trục".
• Vòng bi (n): Another common term for bearing (ball or roller).

1. (cơ học) Pillow-block, plummer-block