A compact shielded bearing designed for model engineering and RC use, delivering standard 10 x 19 x 7 mm fitment for common layshafts. J&A Racing International Bearing gives hobbyists reassurance through familiar sizing and clear sealing choices. Will the available shield and seal options match workshop or high-speed demands?
⚡ At a Glance
- • Shielding: Available with steel shields, reinforced rubber contact seals, or open form
- • Best for: RC hobbyists and model engineers needing standard layshaft replacements
- • Not ideal for: High-speed applications when using rubber contact seals due to extra friction
10mm inside diameter, 19mm outside diameter and 7mm width in a standard bearing size. Offered in shielded, sealed or open variants to suit different installation and lubrication needs.
Smooth rotation, thanks to steel shields and factory lubrication
Steel shields are fitted to the bearing and bearings with metal shields arrive lubricated for life, allowing the race and rolling elements to move with consistent film lubrication. The shield keeps larger contaminants away from the race while the factory grease supports immediate, low-maintenance operation.
Lower routine servicing is possible with shielded, pre-lubricated bearings, making them a practical choice for hobby builds where access for frequent re-greasing is limited.
Stronger protection, with reinforced rubber contact seals
Rubber contact seals incorporate steel reinforcement to form a tighter barrier against dust and debris, creating a more effective seal than metal shields. The contact nature of the seal increases friction at the contact lip, impacting rotational drag.
Choose rubber-sealed bearings for dusty or dirty environments where protection is a priority, accepting a modest trade-off in rotational efficiency at higher speeds.
Direct replacement fit, with standard 10 x 19 x 7 mm sizing
Specified inner diameter of 10mm, outer diameter of 19mm and width of 7mm match common layshaft bearing dimensions used in FG 1/5th scale applications. Open, shielded and sealed variants share the same dimensional standard.
Quick swaps and straightforward spares stocking are possible for models that use the common layshaft size, reducing downtime during maintenance or upgrades.
✨ The 4 Key Reasons for J&A Racing International Bearing
- Precision 10 x 19 x 7 mm – Ensures accurate fitment on compatible layshafts
- Steel shield option – Simplifies maintenance with effective exclusion of larger debris
- Reinforced rubber seals – Provides superior contamination protection for slow-moving assemblies
- Open variant available – Minimises rotational friction where continuous lubrication is supplied
📋 Technical Details at a Glance
- Category: BISS
- Brand: J&A Racing International
- Model: 63800ZZ (shielded variant indicated)
- Product ID: B00LRTPHKG
- Dimensions: 10 mm ID x 19 mm OD x 7 mm width
❓ Frequently Asked Questions
Q: What are the exact dimensions of the bearing?
A: 10 mm inner diameter, 19 mm outer diameter and 7 mm width are specified.
Q: Are the bearings pre-lubricated?
A: Bearings fitted with steel shields and rubber contact seals are lubricated for life; open bearings are supplied without seals or shields for use where lubricant is continuously supplied.
Q: Can I use the rubber-sealed option for high-speed applications?
A: No. Rubber contact seals provide better protection but add friction, making them unsuitable for high-speed applications.
🏆 Our Verdict
Ideal for RC hobbyists and model engineers who require a standard 10 x 19 x 7 mm replacement bearing. The availability of steel-shielded, rubber-sealed and open variants allows a choice between lower maintenance and stronger contamination protection. With factory lubrication on sealed types and standard dimensions, expect dependable service life and practical long-term value.
