HJDP UJ2121 Universal Joint for VZA-2121 (NIVA) – 28mm x 70.95mm

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Description

Product Description

1. Product Overview

HJDP UJ2121 universal joint is a precision‑manufactured cardan joint cross specially designed for VAZ‑2121 (LADA NIVA) off‑road vehicles. With standard dimensions of 28mm needle roller diameter and 70.95mm overall length, it is used in the vehicle drive shaft system to transmit power stably and realize angle‑variable torque transmission. This universal joint adopts high‑strength alloy steel material and strict heat treatment process, with good wear resistance, fatigue resistance and sealing performance, which can adapt to the complex road conditions of off‑road driving. It is a direct replacement part with perfect fit, easy installation and long service life, effectively ensuring the normal operation of the transmission system of VAZ‑2121 NIVA vehicles.

2. Key Technical Parameters

  • Model: HJDP UJ2121
  • Application: VAZ‑2121 (LADA NIVA)
  • Needle roller diameter: 28mm
  • Overall length: 70.95mm
  • Material: 20CrMnTi high‑strength alloy steel
  • Surface hardness: HRC 58‑64
  • Core hardness: HRC 30‑45
  • Bearing type: Needle roller bearing
  • Seal type: NBR oil‑resistant dust seal
  • Surface treatment: Black oxide / Phosphating
  • Function: Drive shaft power transmission
  • Service conditions: Suitable for off‑road and daily driving

3. Product Features & Advantages

  • High‑strength alloy steel forging ensures strong load‑bearing capacity and long service life.
  • Precision‑machined dimensions provide 100% fit with original vehicle structure, no modification needed.
  • High‑precision needle roller bearings reduce friction and ensure smooth rotation.
  • Oil‑resistant rubber seals prevent dust, mud and lubricant leakage, adapting to harsh environments.
  • Strict heat treatment improves surface hardness and wear resistance, reducing maintenance frequency.
  • Stable power transmission effectively reduces vibration and abnormal noise in the transmission system.

4. Application Models

Mainly applicable to VAZ‑2121 (LADA NIVA) series off‑road vehicles, used in drive shaft / cardan shaft assembly.

5. Production & Quality Control

Adopts precision forging, CNC machining, carburizing and quenching heat treatment, and full‑size inspection. Each universal joint is tested for rotation flexibility, sealing performance and dimensional accuracy before leaving the factory to ensure reliable quality.

6. Packaging & Transportation

  • Single piece: Plastic bag + foam protection
  • Medium package: Color box / neutral carton
  • Bulk package: Standard export carton, can be equipped with wooden pallet for sea and land transportation

Customer Reviews

Rated 5 out of 5

“These wheel hub bearings are extremely well-made and fit perfectly on my vehicle. The installation was smooth, and they’ve been running quietly and reliably for weeks. Great quality for the price—definitely will buy again and recommend to anyone looking for durable wheel bearings!”

Rated 5 out of 5

“I’m very impressed with the performance of these wheel hub bearings. They feel solid, reduce vibration significantly, and have greatly improved my driving experience. Fast shipping, excellent build quality, and professional fitment. 10/10, will purchase for future projects!”