Product Description
Radial ball bearing replacement, 20 mm bore x 47 mm outer diameter x 14 mm wide, single rubber seal (RS1). Suitable for manual pallet jack load wheels and caster assemblies.
Specifications
Dimensional
| Bore Size | 20 mm |
| Outer Diameter | 47 mm |
| Width | 14 mm |
| Seal Type | Single rubber seal (RS1) |
| Tolerance Class | ABEC 1 (ISO 492 Normal) |
Material
| Ball Material | High carbon chromium steel |
| Cage Material | Pressed steel |
| Seal Material | Synthetic nitrile rubber |
| Finish | Uncoated (natural steel) |
Part Numbers
| Manufacturer Part Number | 6004RS1 |
Frequently Asked Questions
Q: What are the specifications of the 6004RS1 bearing?
A: The 6004RS1 is a radial ball bearing with a 20 mm bore, 47 mm outer diameter, and 14 mm width. It features a single rubber seal (RS1 designation) and is constructed from high carbon chromium steel. Designed for manual pallet jack load wheels and caster assemblies.
Q: Why does the 6004RS1 have only a single seal instead of dual seals?
A: Single seal (RS1) design reduces friction and heat generation compared to dual-seal bearings. This allows the bearing to spin more freely with less drag. Single seals are sufficient for indoor warehouse use but offer less protection in wet or extremely contaminated environments.
Q: What materials are used in the 6004RS1 bearing construction?
A: Ball material is high carbon chromium steel. The cage is pressed steel. The seal is synthetic nitrile rubber. The finish is uncoated natural steel. These materials provide standard performance for material handling equipment in typical warehouse conditions.
Q: What is the tolerance class and precision rating of the 6004RS1?
A: The 6004RS1 meets ABEC 1 precision per ISO 492 Normal tolerance class. This standard precision level is appropriate for load wheel applications in manual and low-speed powered equipment.
Q: What is the difference between 6004RS1 and 6004LU bearings?
A: The 6004RS1 has a single rubber seal while 6004LU has dual contact seals. Both are 20 mm bore x 47 mm OD x 14 mm wide. Choose 6004RS1 for low-friction applications; choose 6004LU for environments requiring maximum contamination protection.
Q: How often should the 6004RS1 bearing be replaced?
A: Under normal indoor warehouse use, expect 2-4 years of service life before replacement. Single seal design means contaminants may enter more readily than dual-seal bearings. Inspect for noise, vibration, or rough rotation. Replace immediately if seals fail or if bearing roughness develops.