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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
For Your Every Summer RSVP, with Code: SUMMER15
Description
ST47BB Standard Ball Bearing (1.55 oz, 47 oz-in)Features Back to Top ^ Universal connectors campatible with major brand connectors JR's industry leading 3 year warranty Standard size with ball bearings Overview Back to Top ^ RC has never been more affordable to enter into as it is now, and the quality of what is now considered to be entry level equipment rivals what was considered to be the top tier equipment just a short time ago. With JR SPORT you can get the high level of performance you want
Features Back to Top ^ Universal connectors campatible with major brand connectors JR's industry leading 3 year warranty Standard size with ball bearings Overview Back to Top ^ RC has never been more affordable to enter into as it is now, and the quality of what is now considered to be entry-level equipment rivals what was considered to be the top-tier equipment just a short time ago. With JR SPORT you can get the high level of performance you want with a budget friendly price you desire. JR SPORT makes it easy to determine what servo is best for your application, thanks to their simple naming structure. If you look at the servo's name it will indicate the size and features of the servo for you at a glance. For example look at the ST47BB. ST denotes a standard size case, BB denotes that it has ball bearings and the 47 refers to 47 oz/in of torque @ 4.8volts. All JR SPORT servos feature universal connectors that will plug into major brand receivers and they still feature JR’s industry leading 3-Year warranty Specifications Back to Top ^ Size Category: Standard Type: Analog Torque: 47 oz-in (3.38 kg-cm) @ 4.8V Speed: .18 sec/60° @ 4.8V; .15 sec/60° @ 6V Length: 1.52 in (38.6mm) Width: 0.73 in (18.5mm) Height: 1.32 in (33.5mm) Weight: 1.55 oz (44g) Bushing Or Bearing: Bearing Gear Type: Nylon Application: .40- to .90-size AircraftShipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
High quality tools
Size: 3 Pack
These are real nice. Pretty heavy and work well. Not some light weight junk tool. I’d definitely recommend these for ….. well I was sound deadening my car, but yes these were worth the money and will last me years if I ever have to get another set.
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Reviewed in the United States on January 6, 2026
★★★★★ 4
Good but maybe too narrow...
Size: 1 Pack
Buy a wider one. Functions ns well.
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Reviewed in the United States on January 5, 2026
★★★★★ 5
Van build
Size: 3 Pack
The rollers work well they are made out of metal and not expensive
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Buy it. Spend the $$$
Size: 3 Pack, Size: 3 Pack
Glad I spent the extra money and got the rollers with the ball bearings. The 3 pack came in handy. Very good quality.
If you are doing more than 1 area, you will need these.
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Reviewed in the United States on June 4, 2026
★★★★★ 5
A Must Have For Sound Deadening Materials
Size: 3 Pack
I applied Silex sound deadening material to the rear interior of a Ford Maverick truck cab. Lots of narrow areas, and lots of curved surfaces. This set was a must to properly apply the mats to the metal surface. There were places that I had to push down with my fingers due to obstacles like seat belt mounts, but I could tell that I was not getting the same results as I was with the crimped rollers.
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Reviewed in the United States on May 5, 2026