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Description
ARRMA Main Input Gear 13T Straight Cut Safe-D ARA311055The ARRMA ARA311055 Main Input Gear is a 13T straight cut Safe D steel drivetrain gear designed for compatible ARRMA differential assemblies needing secure keyed fitment and reliable power transfer. Features 13T Main Input Gear: Designed as a replacement drivetrain gear for compatible ARRMA differential assemblies Straight Cut Tooth Profile: Straight cut gear teeth support smooth operation in demanding RC conditions Hard Wearing Steel Construction:
The ARRMA ARA311055 Main Input Gear is a 13T straight cut Safe-D steel drivetrain gear designed for compatible ARRMA differential assemblies needing secure keyed fitment and reliable power transfer.
Features
- 13T Main Input Gear: Designed as a replacement drivetrain gear for compatible ARRMA differential assemblies
- Straight-Cut Tooth Profile: Straight-cut gear teeth support smooth operation in demanding RC conditions
- Hard-Wearing Steel Construction: Strong steel material provides long-lasting durability and consistent drivetrain performance
- Precision Manufactured Teeth: 13 accurately formed gear teeth help deliver smooth and reliable power transfer
- Safe-D Keyed Fit: Uses ARRMA Safe-D keyed fitment to the input shaft cup and composite sleeve for a more secure drivetrain connection
- Useful Spare Part: Ideal for carrying in your RC toolbox for drivetrain maintenance, repairs, or differential rebuilds
Specifications
- Brand: ARRMA
- Part Number: ARA311055
- Product Type: Main input gear
- Tooth Count: 13T
- Gear Cut: Straight cut
- Fitment Type: Safe-D keyed fit
- Material: Steel
- Required Main Diff Gear: AR310441, ARA310976, or ARA310977
- Application: Compatible ARRMA drivetrain and differential assemblies using ARA311055
- Intended Use: Replacement main input gear for differential servicing and drivetrain repair
Includes
- 1 x ARRMA main input gear 13T straight cut Safe-D
FAQ
What main diff gears does the ARRMA ARA311055 input gear work with? The ARRMA ARA311055 main input gear is designed to be used with main diff gears AR310441, ARA310976, or ARA310977.
What tooth count is this input gear? The ARRMA ARA311055 main input gear has 13 precision manufactured gear teeth.
Is the ARRMA ARA311055 gear spiral cut? No. The ARRMA ARA311055 is a straight cut main input gear.
What does Safe-D mean on this gear? Safe-D refers to ARRMA’s keyed fit design for the input shaft cup and composite sleeve, helping provide a more secure drivetrain connection.
Will this fit every ARRMA differential? No. OZRC recommends checking your ARRMA vehicle manual or exploded diagram to confirm ARA311055 is the correct input gear before installation.
Important Notes
- Must be used with ARRMA main diff gear AR310441, ARA310976, or ARA310977.
- Check your ARRMA vehicle manual or exploded diagram before fitting to confirm drivetrain compatibility.
- This listing is for one main input gear only. Main diff gear, input shaft cup, composite sleeve, bearings, shims, diff case, screws, and other drivetrain parts are not included.
- Correct gear pairing, bearing condition, shimming, and diff assembly are important for reliable drivetrain performance.
Shipping 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
4.0 ★★★★★
Based on 612 reviews
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Product Reviews
★★★★★ 5
Is this the CURE!
Size: Regular, Color: Cream
I have a skin disease called Ichthyosis Vulgaris. Yes, SCALEY FISH! Thanks MOM! This unfortunate crud leaves my heels an embarrassing mess! They are cracked and dry and literally like concrete. I have had this disease all my life and there is NO cure. It's hideous! Anyway, I have tried so many different experiments to help improve my situation. So much time and money I will never get back. So when I saw these, I had to give them a try too because I am a forever optimist and love being disappointed. Here's how it went.
First I put my dermatologist recommended AmLactin on my crusty heels. Then, I put the socks on. By the way, with no problem at all, and went to bed. I was not too hot, which is usually what happens when I sleep with socks on. I never even realized that I had them on. When I woke up, I took them off and immediately used a "Heel File" over a towel removing all the yuck!. Then, I sand papered them to smooth the skin out. Then, I doused them with Shea and Aloe foot lotion I found at the bottom of my experiment drawer in my bathroom. Oh, they felt like someone else's feet. I am very hopeful at this moment! Is this the cure to my embarrassing situation? I sure hope so. Spring is here and I would really like to wear my cute flip-flops when I go to the Waffle House and set at the bar. Wasn't that a picture on Facebook of someone nasty heels? It made me gag. Then, I had to make sure that picture wasn't me! I am going to do this for a week and come back for another review. Wish me luck ya'll!
UPDATE!
So it’s been about two weeks. I wish that I had taken a before and after picture. I guess I figure that this too will be a waste of money. NO! These little socks are a God send for me. I did buy AmLactin foot repair cream and that I highly recommend. It’s the best so far. They also offer an option with heel socks. They are soft and work very well also but one negative. They leave fuzzies on you feet and tools. Guys this is it for me. My search is over! I went to my mani/pedi queen yesterday and she was shocked when she saw my feet. She is spreading the word!
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Reviewed in the United States on March 23, 2025
★★★★★ 5
Great reusable moisturizing
Size: Regular, Color: Cream
Love these! Use them often to help moisturize my heels with my favorite moisturizer. Comfortable and easy to use
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Buy these!
Size: Regular, Color: Cream
I only write a review when I have a strong opinion and want to help others decide. I've been having trouble with cracked heels for months. Previously I had just been using regular socks, but these slip-ons have been game changers! They don't make my feet hot at night. They are comfortable and in the morning my heels feel soft, and I don't need to use them everyday. They look good and fit well even if I want to wear them under socks or in shoes during the day. They really do help if you have cracked heels along with some kind of lotion. Definitely effective!
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Reviewed in the United States on May 19, 2025
★★★★★ 5
Cracked heels are gone after 5 applications
Size: Regular, Color: Cream
These moisturizing socks work great. My heels are happy again. The open toe design makes it so my feet don’t overheat at night. It only took 5 times to get rid of my painful cracked heels. Now I wear them 1-2 times a week to keep my heels healthy.
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Reviewed in the United States on January 6, 2026
★★★★★ 4
Really nice but needs a few small improvements
Size: Regular, Color: Cream
Super comfortable and the gel lining feels so nice on my feet. They seem to do their job and help with moisturizing and so far the quality has been great. I deducted a star because they can be difficult to clean and may not fit wider feet. Otherwise a great value for your money
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Reviewed in the United States on December 31, 2025