Product Description
Replacement bearing assembly for manual pallet jack applications. Precision sealed deep groove ball bearing. Manufactured from SAE 52100 high-carbon chromium steel, 20 mm bore diameter, 47 mm outside diameter, 14 mm width, CN internal clearance, double rubber seal design, pre-lubricated. Suitable for load wheel and steer wheel assemblies in manual pallet jacks.
Specifications
Material
| Cage Material | Formed steel, riveted design |
| Hardness | Rockwell C58 (raceways and balls) |
Frequently Asked Questions
Q: What are the dimensional specifications of the 1284686 bearing?
A: The 1284686 is a deep groove ball bearing with a 20mm bore diameter, 47mm outside diameter, and 14mm width. These dimensions are critical for fitment on load wheel and steer wheel shafts. Always verify these measurements against your equipment before ordering.
Q: What type of bearing is the 1284686 and where does it install?
A: The 1284686 is a precision sealed deep groove ball bearing suitable for replacement in load wheel and steer wheel assemblies on manual pallet jacks. This bearing type handles both radial and thrust loads, making it ideal for wheel support where equipment weight and directional forces are present.
Q: What material and hardness is the 1284686 manufactured from?
A: The 1284686 is manufactured from SAE 52100 high-carbon chromium steel with a hardness of Rockwell C58 on the raceways and balls. This hardness specification provides excellent wear resistance and load capacity, essential for supporting the static and dynamic loads of pallet jack wheels.
Q: How are the internal clearance and seals configured on the 1284686?
A: The 1284686 features CN internal clearance, which is standard for most bearing applications in material handling. It includes a double rubber seal design on both sides of the bearing, protecting the ball raceways and prelubricated steel balls from dust, moisture, and contamination. The seals are effective in warehouse, outdoor, and light chemical environments.
Q: How is the 1284686 cage designed, and does it affect durability?
A: The 1284686 uses a formed steel cage with a riveted design that holds the balls in proper spacing. Riveted steel cages provide reliable ball positioning and are less likely to degrade than open cages. This design is durable for continuous wheel rotation in manual pallet jack applications.
Q: What is the expected service life of the 1284686, and when should it be replaced?
A: The 1284686 is pre-lubricated and sealed, providing 2-4 years of service in typical warehouse use. Replace the bearing when you observe increased wheel resistance, noise, or wobbling. If a wheel is damaged or flat-spotted, replace the bearing simultaneously as contamination may have entered the bearing. Check bearing condition during routine equipment maintenance.