Product Description
The 6307DDU is a single row deep groove ball bearing with non-contact double-lip rubber seals, ideal as a direct replacement for load wheel assemblies in manual pallet jacks and electric lift trucks. Pre-lubricated for reliable maintenance-free operation, the bearing delivers smooth rotation and long-lasting performance in warehouse, manufacturing, and material handling environments. Compatible with multiple bearing brands including NSK, NTN, SKF, FAG, and KOYO.
Specifications
Material & Construction
| Cage Material | Steel, press-formed |
| Seal Material | Synthetic nitrile rubber, press-fitted |
Mechanical Specifications
| Limiting Speed: Grease | 6,000 RPM (based on industrial equivalents for 6307DDU dimension/class) |
| Static Load Rating | 30.6 kN |
Part Numbers
| Manufacturer Part Number | 6307DDU |
| Cross-Reference Part Numbers | NSK 6307DDU, replaces 6307, 6307-2RS, 6307LLU |
| Equivalent Part Numbers | SKF 6307-2RS1, FAG 6307.2RSR, NTN 6307LLU, KOYO 6307-2RS |
Frequently Asked Questions
Q: What are the exact dimensions of the 6307DDU bearing assembly?
A: The 6307DDU is a single row deep groove ball bearing with the following dimensions: 35 mm bore diameter, 80 mm outer diameter, and 21 mm width. These dimensions fit manual pallet jack load wheels and multiple OEM equipment models from Crown, Toyota, and Raymond.
Q: Will the 6307DDU replace other bearing part numbers I have?
A: The 6307DDU is functionally equivalent to NSK 6307DDU, SKF 6307-2RS1, FAG 6307.2RSR, NTN 6307LLU, and KOYO 6307-2RS. Verify that bore, outer diameter, and width match your equipment before ordering. Cross-reference numbers help identify equivalent parts across different manufacturers.
Q: What makes the 6307DDU maintenance-free?
A: The 6307DDU features non-contact double-lip rubber seals and comes pre-lubricated from the manufacturer. The seals keep contaminants out and retain the factory lubricant, eliminating the need for periodic greasing in standard manual pallet jack applications.
Q: What is the seal material in the 6307DDU bearing?
A: The 6307DDU uses synthetic nitrile rubber press-fitted double-lip contact seals. These seals provide dust and moisture protection suitable for warehouse, manufacturing, and outdoor material handling environments.
Q: What cage material is used in the 6307DDU?
A: The 6307DDU bearing uses a steel press-formed cage. This cage design distributes the ball load evenly and maintains proper ball spacing, contributing to smooth rotation and extended bearing life in load wheel applications.
