# Definitive Parts List

**URL:** <https://forums.yoyoexpert.com/t/definitive-parts-list/392729>\
**Category:** Yo-Yo Mods and Maintenance\
**Created:** [January 23, 2024, 2:49pm UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729 "2024-01-23T14:49:45Z")\
**Posts on this page:** 11\
**Page:** 2

<div class="post-metadata">

**Author:** ![dnspens](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/dnspens/32/273473_2.png) [@dnspens](https://forums.yoyoexpert.com/u/dnspens)\
**Post date:** [March 21, 2024, 9:33pm UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729/22 "2024-03-21T21:33:21Z")

</div>

I really enjoy doing that.

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<div class="post-metadata">

**Author:** ![Cutting2crew](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/cutting2crew/32/349079_2.png) [@Cutting2crew](https://forums.yoyoexpert.com/u/Cutting2crew)\
**Post date:** [February 17, 2025, 1:35am UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729/23 "2025-02-17T01:35:23Z")

</div>

Is the looping blank a normal E size bearing size

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<div class="post-metadata">

**Author:** ![Overtinkering](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/overtinkering/32/663225_2.png) [@Overtinkering](https://forums.yoyoexpert.com/u/Overtinkering)\
**Post date:** [May 20, 2026, 1:15pm UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729/24 "2026-05-20T13:15:15Z")

</div>

Hello

Went over the list updated a few links (that broke) and added a few things to keep this definitive parts list growing and alive.

**BEARINGS**

**MR85:**

- Aluminum - [https://www.mcmaster.com/94669A034/](https://www.mcmaster.com/94669A034/)
- Thick - [MR85 Extra Thicc aka Flying Lemon Bearings | Return Bottoms](https://www.returnbottoms.com/product/mr85-extra-thicc-aka-flying-lemon-bearings)
- Greased - [MR85 Rubber Shield Bearings | Return Bottoms](https://www.returnbottoms.com/product/mr85-rubber-shield-bearings)
- Delrin - [https://www.returnbottoms.com/product/delrin-mr85-blank](https://www.returnbottoms.com/product/delrin-mr85-blank)
- 3D Print - [https://www.printables.com/model/1148407-mr85-yo-yo-bearing-blank](https://www.printables.com/model/1148407-mr85-yo-yo-bearing-blank)

**Size A:**

- Aluminum - [https://www.mcmaster.com/94669A071/](https://www.mcmaster.com/94669A071/)
- Ultem - [https://www.returnbottoms.com/product/ultem-a-bearing-blank](https://www.returnbottoms.com/product/ultem-a-bearing-blank)
- 3D Print - [https://www.printables.com/model/1148468-yo-yo-bearing-blank-size-a/files](https://www.printables.com/model/1148468-yo-yo-bearing-blank-size-a/files)

**Size B:**

- Bearing - lock kit [https://www.layerinfinity.com/product/kasm-bearing-parts-kit](https://www.layerinfinity.com/product/kasm-bearing-parts-kit)

**Size C:**

**Standard**

- Ultem - [https://www.returnbottoms.com/product/ultem-34-spec-bearing-blank](https://www.returnbottoms.com/product/ultem-34-spec-bearing-blank)
- Aluminum - [https://yoyoexpert.com/products/luftverk-fixed-axle-bearing-blank](https://yoyoexpert.com/products/luftverk-fixed-axle-bearing-blank)
- Aluminum - [https://www.mcmaster.com/92510A761/](https://www.mcmaster.com/92510A761/)

**Narrow (half-spec)**

- Aluminum: [https://www.mcmaster.com/92510A760/](https://www.mcmaster.com/92510A760/)

· Ultem: [https://www.returnbottoms.com/product/half-spec-c-delrin-bearing-blank](https://www.returnbottoms.com/product/half-spec-c-delrin-bearing-blank)

**Three Quarter Spec**

· 3D Print - [https://www.printables.com/model/1148520-yo-yo-bearing-blank-size-c-three-quarter-spec](https://www.printables.com/model/1148520-yo-yo-bearing-blank-size-c-three-quarter-spec)

- Aluminum - [https://zgrt.ca/products/fixed-c-bearing-1-8-3-15-mm-wide?variant=43326302716054](https://zgrt.ca/products/fixed-c-bearing-1-8-3-15-mm-wide?variant=43326302716054)

**Size D:**

- Delrin: [https://www.returnbottoms.com/product/delrin-4-mm-wide-d-bearing-blank](https://www.returnbottoms.com/product/delrin-4-mm-wide-d-bearing-blank)

- Center Track - [https://zgrt.ca/products/fixed-d-bearing-3-mm-wide?variant=41575500120214](https://zgrt.ca/products/fixed-d-bearing-3-mm-wide?variant=41575500120214)

**Wooden Alternatives:**

- Ultem - No Jive Axle - [https://www.returnbottoms.com/product/ultem-no-jive-axle](https://www.returnbottoms.com/product/ultem-no-jive-axle)

- 3D Print – Proyo - [https://www.printables.com/model/1455374-proyo-axles-v2](https://www.printables.com/model/1455374-proyo-axles-v2)

- 3D Print -Spintastics - [https://www.printables.com/model/1518687-spintastics-axle-sleeve](https://www.printables.com/model/1518687-spintastics-axle-sleeve)

- 3D Print -TMBR Axle - [The Definitive Guide To TryCatchThrow@'s Replacement TMBR Axles](https://forums.yoyoexpert.com/t/the-definitive-guide-to-trycatchthrow-s-replacement-tmbr-axles/402822) [Yo-Yo Mods and Maintenance](https://forums.yoyoexpert.com/c/yo-yo-modification-and-maintenance/12)

_Note: We found wooden blanks for standard bearings often cracked from tightening the yoyo, alternative materials are preferred_

_----------------------_

**Axles**

- Size List Reference List - [https://forums.yoyoexpert.com/t/common-yoyo-axle-sizes/18437](https://forums.yoyoexpert.com/t/common-yoyo-axle-sizes/18437)

**Axle Repair**

- Helicoils – M4 - [https://www.mcmaster.com/products/helicoils/thread-pitch~0-7-mm/?s=4mm+x+.7mm+helicoil](https://www.mcmaster.com/products/helicoils/thread-pitch~0-7-mm/?s=4mm+x+.7mm+helicoil)

- Helicoils – More Sizes to be added as discovered

**Misc Part**

- · Wood Worker Kit - [https://www.penblanks.ca/instructions/english/PKYOYOC-Yoyo.pdf](https://www.penblanks.ca/instructions/english/PKYOYOC-Yoyo.pdf)

**Tools**

- MR85, A, D & C Bearing Removal Tool

[https://zgrt.ca/products/d-c-bearing-removal-tool?variant=42994091294870](https://zgrt.ca/products/d-c-bearing-removal-tool?variant=42994091294870)

- Bearing Flicker

[https://www.layerinfinity.com/product/bearing-flicker-tool](https://www.layerinfinity.com/product/bearing-flicker-tool)

3D Printer Threaded Inserts

- [https://www.amazon.com/dp/B08Z88ZQNX/ref=cm\_sw\_r\_cp\_api\_i\_MGS56THA4GF3ECVPY378?\_encoding=UTF8&th=1](https://www.amazon.com/dp/B08Z88ZQNX/ref=cm_sw_r_cp_api_i_MGS56THA4GF3ECVPY378?_encoding=UTF8&th=1)

Archive Guides

- [https://forums.yoyoexpert.com/t/useful-modification-maintenance-guides-clean-repair-tune-fix-yoyos/16461](https://forums.yoyoexpert.com/t/useful-modification-maintenance-guides-clean-repair-tune-fix-yoyos/16461)

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<div class="post-metadata">

**Author:** ![Slestak75](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/slestak75/32/212315_2.png) [@Slestak75](https://forums.yoyoexpert.com/u/Slestak75)\
**Post date:** [May 20, 2026, 2:09pm UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729/25 "2026-05-20T14:09:52Z")

</div>

Thank you so much for taking the time to do that. 🥰

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<div class="post-metadata">

**Author:** ![Overtinkering](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/overtinkering/32/663225_2.png) [@Overtinkering](https://forums.yoyoexpert.com/u/Overtinkering)\
**Post date:** [May 25, 2026, 12:11pm UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729/26 "2026-05-25T12:11:14Z")

</div>

Edit -

added @TryCatchThrow TMBR Axles, @AudreySickburn Bearings, @jeduardo blanks link update

seeking help in…

-knowledge on helicoil specifics

-3d print melt in insert options

-more specific yoyo parts shims, spacers, ect

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<div class="post-metadata">

**Author:** ![Overtinkering](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/overtinkering/32/663225_2.png) [@Overtinkering](https://forums.yoyoexpert.com/u/Overtinkering)\
**Post date:** [June 19, 2026, 11:55am UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729/27 "2026-06-19T11:55:58Z")

</div>

Added

**MR85:** Thick - [MR85 Extra Thicc aka Flying Lemon Bearings | Return Bottoms](https://www.returnbottoms.com/product/mr85-extra-thicc-aka-flying-lemon-bearings)

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<div class="post-metadata">

**Author:** ![kretzschmar](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/kretzschmar/32/668707_2.png) [@kretzschmar](https://forums.yoyoexpert.com/u/kretzschmar)\
**Post date:** [June 19, 2026, 12:25pm UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729/28 "2026-06-19T12:25:25Z")

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Those bearings are one of the very few things that make me grab unresponsive these days, they are special

@Cmchappell97 Just saying brother… :heart:

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<div class="post-metadata">

**Author:** ![Slestak75](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/slestak75/32/212315_2.png) [@Slestak75](https://forums.yoyoexpert.com/u/Slestak75)\
**Post date:** [June 19, 2026, 12:32pm UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729/29 "2026-06-19T12:32:09Z")

</div>

> [@kretzschmar](#):
>
> @Cmchappell97 Just saying brother… :heart:

Ooooo after coming to know the sheer joy of the D Ptarmigan…. I’ve gotta say… you are definitely on to a good idea here. :thinking:😊

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<div class="post-metadata">

**Author:** ![kretzschmar](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/kretzschmar/32/668707_2.png) [@kretzschmar](https://forums.yoyoexpert.com/u/kretzschmar)\
**Post date:** [June 19, 2026, 12:41pm UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729/30 "2026-06-19T12:41:57Z")

</div>

Definetly agree, of the few unresponsives I own, the D bearing Ptarmigan is one of them (and your signature big and little Acorn)

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<div class="post-metadata">

**Author:** ![Overtinkering](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/overtinkering/32/663225_2.png) [@Overtinkering](https://forums.yoyoexpert.com/u/Overtinkering)\
**Post date:** [July 23, 2026, 1:28pm UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729/31 "2026-07-23T13:28:06Z")

</div>

Hello - Latest Updates added today

_Size -MR85_

_Center Track Blank  
Rubber Cap/Grease Filled_

_Size -C_

_Teflon Blank_

_GreaseBucket_

Silicone Break Pads - Added

_See Something we are missing here - Please add and share it on!_

* * *

**BEARINGS**

### **MR85:**

· Aluminum - [McMaster-Carr](https://www.mcmaster.com/94669A034/)

· Wide - [https://www.returnbottoms.com/product/mr85-extra-thicc-aka-flying-lemon-bearings](https://www.returnbottoms.com/product/mr85-extra-thicc-aka-flying-lemon-bearings)

· Grease Filled - [https://www.returnbottoms.com/product/mr85-rubber-shield-bearings](https://www.returnbottoms.com/product/mr85-rubber-shield-bearings)

· Center Track - [Non-Bearing - Blank/Fixed - Size MR85 - Centre Track - 1/8" (2.5 mm) w – Zero Gravity Return Tops](https://zgrt.ca/products/bearing-blank-fixed-size-mr85-centre-track-1-8-2-5-mm-width?variant=45142926459030)

· Delrin - [Delrin MR85 Blank | Return Bottoms](https://www.returnbottoms.com/product/delrin-mr85-blank)

· 3D Print - [https://www.printables.com/model/1148407-mr85-yo-yo-bearing-blank](https://www.printables.com/model/1148407-mr85-yo-yo-bearing-blank)

### **Size A:**

· Aluminum - [McMaster-Carr](https://www.mcmaster.com/94669A071/)

· Ultem - [Ultem A Bearing Blank | Return Bottoms](https://www.returnbottoms.com/product/ultem-a-bearing-blank)

· 3D Print - [https://www.printables.com/model/1148468-yo-yo-bearing-blank-size-a/files](https://www.printables.com/model/1148468-yo-yo-bearing-blank-size-a/files)

### **Size B:**

· Bearing - lock kit [Kasm extra parts | Layer Infinity](https://www.layerinfinity.com/product/kasm-bearing-parts-kit)

### **Size C:**

#### **Standard**

· GreaseBucket - [Greasebucket](https://yoyoexpert.com/products/greasebucket-yoyo-bearing-by-onedrop)

· Ultem - [Ultem 3/4 Spec C Bearing Blank | Return Bottoms](https://www.returnbottoms.com/product/ultem-34-spec-bearing-blank)

· Aluminum - [Luftverk Fixed Axle Bearing Blank](https://yoyoexpert.com/products/luftverk-fixed-axle-bearing-blank)

· Aluminum - [McMaster-Carr](https://www.mcmaster.com/92510A761/)

#### **Narrow (half-spec)**

· Aluminum: [McMaster-Carr](https://www.mcmaster.com/92510A760/)

· Ultem: [Delrin Half Spec C Blank | Return Bottoms](https://www.returnbottoms.com/product/half-spec-c-delrin-bearing-blank)

#### **Three Quarter Spec**

· 3D Print - [https://www.printables.com/model/1148520-yo-yo-bearing-blank-size-c-three-quarter-spec](https://www.printables.com/model/1148520-yo-yo-bearing-blank-size-c-three-quarter-spec)

· Center Track - [Non-Bearing - Blank/Fixed - Size C - Centre Track - 1/8" (3.15 mm) wid – Zero Gravity Return Tops](https://zgrt.ca/products/fixed-c-bearing-1-8-3-15-mm-wide?variant=43326302716054)

· Teflon [Teflon 3/4 Spec C Bearing Blank | Return Bottoms](https://www.returnbottoms.com/product/teflon-34-spec-c-bearing-blank)

#### **Size D:**

· Delrin: [Delrin 4 mm wide D bearing Blank | Return Bottoms](https://www.returnbottoms.com/product/delrin-4-mm-wide-d-bearing-blank)

· Center Track - [Non-Bearing - Blank/Fixed - Size D - Center Track - 3 mm wide – Zero Gravity Return Tops](https://zgrt.ca/products/fixed-d-bearing-3-mm-wide?variant=41575500120214)

· Responsive - [Bearing - Responsive - Size D - Flat - 3 mm wide – Zero Gravity Return Tops](https://zgrt.ca/products/responsive-d-bearing-3-mm-wide?variant=41575493861526)

### **Wooden Alternatives:**

· Ultem - No Jive Axle - [Ultem No Jive Axle | Return Bottoms](https://www.returnbottoms.com/product/ultem-no-jive-axle)

· 3D Print – Proyo - [https://www.printables.com/model/1455374-proyo-axles-v2](https://www.printables.com/model/1455374-proyo-axles-v2)

· 3D Print -Spintastics - [https://www.printables.com/model/1518687-spintastics-axle-sleeve](https://www.printables.com/model/1518687-spintastics-axle-sleeve)

· 3D Print -TMBR Axle - [The Definitive Guide To TryCatchThrow@'s Replacement TMBR Axles](https://forums.yoyoexpert.com/t/the-definitive-guide-to-trycatchthrow-s-replacement-tmbr-axles/402822) [Yo-Yo Mods and Maintenance](https://forums.yoyoexpert.com/c/yo-yo-modification-and-maintenance/12)

## Alternative Response Pads

· Silicone Responsive Break Pads - [Silicone Brake Pads | Return Bottoms](https://www.returnbottoms.com/product/silicone-brake-pads)

## **Tools**

_· Throw Key - MR85, A, D & C Bearing Removal Tool -_ [Throw Key – Zero Gravity Return Tops](https://zgrt.ca/products/simplistic-minimalistic-bearing-tool-v2?variant=41833965748374)

_· Bearing Flicker -_ [Bearing flicker tool v1.1 | Layer Infinity](https://www.layerinfinity.com/product/bearing-flicker-tool)

_----------------------_

## **Axles**

· Size List Reference List - [Common Yoyo Axle Sizes](https://forums.yoyoexpert.com/t/common-yoyo-axle-sizes/18437)

· Repair Service - [Stripped YoYo Repair Service](https://forums.yoyoexpert.com/t/stripped-yoyo-repair-service/442610)

· Helicoils – M4 - [McMaster-Carr](https://www.mcmaster.com/products/helicoils/thread-pitch%5C~0-7-mm/?s=4mm+x+.7mm+helicoil)

· Helicoils – More Sizes to be added as discovered – List

## **Misc Parts**

· Wood Worker Kit - [https://www.penblanks.ca/instructions/english/PKYOYOC-Yoyo.pdf](https://www.penblanks.ca/instructions/english/PKYOYOC-Yoyo.pdf)

---

<div class="post-metadata">

**Author:** ![Overtinkering](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/overtinkering/32/663225_2.png) [@Overtinkering](https://forums.yoyoexpert.com/u/Overtinkering)\
**Post date:** [September 15, 2026, 3:24pm UTC](https://forums.yoyoexpert.com/t/definitive-parts-list/392729/32 "2026-09-15T15:24:09Z")

</div>

I was talking to some people recently and actually came up with a few more ways to customize the feel of your yoyo. List updated.

- Latest Updates added today

_Greased Sealed B_

_Unresponsive D Concave_

_Unresponsive D Flat_

_Half Spec C_

_Greased D_

_Greased A_

_B Bearing, MR85_

_Ceramic C_

_Standard Pads_

_Standard axles_

_Formatting / Order_

_See Something we are missing here - Please add - Re Post and and share it on!_

* * *

**BEARINGS**

**MR85:**

· Aluminum Blank - [https://www.mcmaster.com/94669A034/](https://www.mcmaster.com/94669A034/)

· Center Track Blank - [https://zgrt.ca/products/bearing-blank-fixed-size-mr85-centre-track-1-8-2-5-mm-width?variant=45142926459030](https://zgrt.ca/products/bearing-blank-fixed-size-mr85-centre-track-1-8-2-5-mm-width?variant=45142926459030)

· Delrin Blank - [https://www.returnbottoms.com/product/delrin-mr85-blank](https://www.returnbottoms.com/product/delrin-mr85-blank)

· 3D Print Blank - [https://www.printables.com/model/1148407-mr85-yo-yo-bearing-blank](https://www.printables.com/model/1148407-mr85-yo-yo-bearing-blank)

· Wide Bearing - [https://www.returnbottoms.com/product/mr85-extra-thicc-aka-flying-lemon-bearings](https://www.returnbottoms.com/product/mr85-extra-thicc-aka-flying-lemon-bearings)

· Bearing - [https://■■■■■■■■■■.com/shop/mr85-zz-ball-bearing/](https://yoyotricks.com/shop/mr85-zz-ball-bearing/)

· Greased & Rubber Cap Bearing - [https://www.returnbottoms.com/product/mr85-rubber-shield-bearings](https://www.returnbottoms.com/product/mr85-rubber-shield-bearings)

**Size A:**

· Aluminum Blank- [https://www.mcmaster.com/94669A071/](https://www.mcmaster.com/94669A071/)

· Ultem Blank - [https://www.returnbottoms.com/product/ultem-a-bearing-blank](https://www.returnbottoms.com/product/ultem-a-bearing-blank)

· 3D Print Blank - [https://www.printables.com/model/1148468-yo-yo-bearing-blank-size-a/files](https://www.printables.com/model/1148468-yo-yo-bearing-blank-size-a/files)

· Greased & Rubber Sealed Bearing - [Greased and Rubber Sealed A Bearings | Return Bottoms](https://www.returnbottoms.com/product/greased-and-rubber-sealed-a-bearings)

· Unresponsive Center Track Bearing - [Bearing - Unresponsive - Size A - Center Track - 4mm wide – Zero Gravity Return Tops](https://zgrt.ca/products/bearing-unresponsive-size-a-concave-4mm-wide?variant=44843731583126)

· Unresponsive v Bearing - [Bearing - Unresponsive - Size C - V Shape grooved - ceramic balls- 3/1 – Zero Gravity Return Tops](https://zgrt.ca/products/bearing-unresponsive-size-c-v-shape-grooved-3-8-wide?variant=44843569807510)

**Size B:**

· Greased & Sealed Bearing - [Greased and Sealed B Bearing | Return Bottoms](https://www.returnbottoms.com/product/greased-and-sealed-b-bearing)

· Bearing - [Replacement Yoyo Bearing - Size B | ■■■■■■■■■■.com](https://yoyotricks.com/shop/yoyo-bearing-size-b/)

· Bearing & lock kit (Layer Infinity Specific) - [Kasm extra parts | Layer Infinity](https://www.layerinfinity.com/product/kasm-bearing-parts-kit)

**Size C:**

**C-Standard**

· Ultem Blank - [Ultem 3/4 Spec C Bearing Blank | Return Bottoms](https://www.returnbottoms.com/product/ultem-34-spec-bearing-blank)

· Aluminum Blank - [Luftverk Fixed Axle Bearing Blank](https://yoyoexpert.com/products/luftverk-fixed-axle-bearing-blank)

· Aluminum Blank - [McMaster-Carr](https://www.mcmaster.com/92510A761/)

· Greased & Rubber Sealed Bearing - [Greased and Rubber Sealed C Bearing | Return Bottoms](https://www.returnbottoms.com/product/greased-and-rubber-sealed-c-bearing)

· “Greasebucket” Bearing - [Greasebucket](https://yoyoexpert.com/products/greasebucket-yoyo-bearing-by-onedrop)

· Assorted Bearings - [Zeekio C-Size Yo-Yo Bearing - Replacement YoYo Bearing - Choose Your S – ■■■■■■■](https://www.yoyosam.com/products/zeekio-c-size-yo-yo-bearing-replacement-yoyo-bearing-choose-your-style-copy?_pos=2&_sid=a18bd4189&_ss=r)

· 10 Ball Center Track Bearing - [G2 Rage Bearing](https://www.gsquaredyoyos.com/store/accessories/boss-rage-bearing/)

· Flat 10 Ball Bearing - [One Drop 10 Ball Bearing](https://yoyoexpert.com/products/one-drop-10-ball-yoyo-bearing)

· SS w Ceramic Ball Bearing - [VIP Ceramic Yoyo Bearing - Throwback Skilltoys | On ■■■■■■■■■■.com](https://yoyotricks.com/shop/vip-ultimate-ceramic-yoyo-bearing/)

· SS w Ceramic Bearing - [Bearing - Unresponsive - Size C - Flat - ceramic black - 3/16” (4.75.m – Zero Gravity Return Tops](https://zgrt.ca/products/bearing-unresponsive-size-c-flat-shape-3-16-4-75-mm-wide?variant=44843697832086)

· Concave Nylon Shield Bearing [G2 Ripper V2 Bearing (3 pack)](https://www.gsquaredyoyos.com/store/accessories/g2-ripper-v2-bearing-5-pack/)

· Unresponsive Flat - [https://zgrt.ca/cdn/shop/files/FullSizeRender\_35e38d11-ce76-48ab-9621-fcbb61a30c63.jpg?v=1740768174&width=600](https://zgrt.ca/cdn/shop/files/FullSizeRender_35e38d11-ce76-48ab-9621-fcbb61a30c63.jpg?v=1740768174&width=600)

· Unresponsive U Bearing - [https://zgrt.ca/cdn/shop/files/12811F51-07B7-4205-BA9C-34C9416EEAA2.jpg?v=1743350578&width=600](https://zgrt.ca/cdn/shop/files/12811F51-07B7-4205-BA9C-34C9416EEAA2.jpg?v=1743350578&width=600)

**C-Narrow (half-spec)**

· Aluminum Blank - [McMaster-Carr](https://www.mcmaster.com/92510A760/)

· Ultem Blank - [Delrin Half Spec C Blank | Return Bottoms](https://www.returnbottoms.com/product/half-spec-c-delrin-bearing-blank)

· Half Spec Bearing - [Half Spec C Bearing | Return Bottoms](https://www.returnbottoms.com/product/half-spec-c-bearing)

**Three Quarter Spec**

· 3D Print Blank - [https://www.printables.com/model/1148520-yo-yo-bearing-blank-size-c-three-quarter-spec](https://www.printables.com/model/1148520-yo-yo-bearing-blank-size-c-three-quarter-spec)

· Center Track Blank - [Non-Bearing - Blank/Fixed - Size C - Centre Track - 1/8" (3.15 mm) wid – Zero Gravity Return Tops](https://zgrt.ca/products/fixed-c-bearing-1-8-3-15-mm-wide?variant=43326302716054)

· Teflon Blank - [Teflon 3/4 Spec C Bearing Blank | Return Bottoms](https://www.returnbottoms.com/product/teflon-34-spec-c-bearing-blank)

**Size D:**

· Delrin Blank - [Delrin 4 mm wide D bearing Blank | Return Bottoms](https://www.returnbottoms.com/product/delrin-4-mm-wide-d-bearing-blank)

· Center Track Blank - [Non-Bearing - Blank/Fixed - Size D - Center Track - 3 mm wide – Zero Gravity Return Tops](https://zgrt.ca/products/fixed-d-bearing-3-mm-wide?variant=41575500120214)

· Greased & Sealed Bearing - [Greased and Sealed D Bearing | Return Bottoms](https://www.returnbottoms.com/product/greased-and-sealed-d-bearing)

· Responsive - [Bearing - Responsive - Size D - Flat - 3 mm wide – Zero Gravity Return Tops](https://zgrt.ca/products/responsive-d-bearing-3-mm-wide?variant=41575493861526)

· Unresponsive Concave - [Unresponsive D Concave | Return Bottoms](https://www.returnbottoms.com/product/unresponsive-d-concave)

· Unresponsive Flat - [Unresponsive D Flat | Return Bottoms](https://www.returnbottoms.com/product/unresponsive-d-flat)

· Unresponsive Flat - [Bearing - Unresponsive - Size D - Flat - 4mm wide – Zero Gravity Return Tops](https://zgrt.ca/products/thick-lubed-d-bearing-4mm-wide?variant=42212967907478)

**Size K**

· Bearing - [Size K Bearing - ■■■■■■■■■■.com](https://yoyotricks.com/shop/size-k-bearing/)

**Wooden Axles and Alternatives:**

· No Jive Axle - [Buy Axle Sleeve No Jive Yo-Yo - Wooden Online ( )](https://tomkuhn.com/shop/axle-sleeve-no-jive/)

· Ultem - No Jive Axle - [Ultem No Jive Axle | Return Bottoms](https://www.returnbottoms.com/product/ultem-no-jive-axle)

· 3D Print – Proyo - [https://www.printables.com/model/1455374-proyo-axles-v2](https://www.printables.com/model/1455374-proyo-axles-v2)

· 3D Print - Spintastics - [https://www.printables.com/model/1518687-spintastics-axle-sleeve](https://www.printables.com/model/1518687-spintastics-axle-sleeve)

· 3D Print - TMBR Axle - [The Definitive Guide To TryCatchThrow@'s Replacement TMBR Axles](https://forums.yoyoexpert.com/t/the-definitive-guide-to-trycatchthrow-s-replacement-tmbr-axles/402822) [Yo-Yo Mods and Maintenance](http://c/yo-yo-modification-and-maintenance/12)

**Alternative Response Pads – (YYE Guide - [Response Pad Sizing Guide](https://forums.yoyoexpert.com/t/response-pad-sizing-guide/59071))**

· Silicone Responsive Brake Pads - [Silicone Brake Pads | Return Bottoms](https://www.returnbottoms.com/product/silicone-brake-pads)

· Assorted 19 Pad Collection - [https://modernyoyos.com/products/hollywood-pads-19mm-clear-slim-pads](https://modernyoyos.com/products/hollywood-pads-19mm-clear-slim-pads)

· Dad Pads - [Dad Pads](https://www.gsquaredyoyos.com/store/accessories/dad-pads/)

· E-Z-Pads 19x14mm - [https://zgrt.ca/cdn/shop/files/FullSizeRender\_b948522f-3156-4d33-b9d3-fa90e8b23ff9.jpg?v=1740768408&width=500](https://zgrt.ca/cdn/shop/files/FullSizeRender_b948522f-3156-4d33-b9d3-fa90e8b23ff9.jpg?v=1740768408&width=500)

· Silicone 19x14mm - [19 mm x 14 mm Silicon Pad (pair) – Zero Gravity Return Tops](https://zgrt.ca/products/19-mm-x-14-mm-silicon-pad-pair?variant=42495533318294)

· Silicone 19x13mm - [19 mm x 13 mm Silicon Pad (pair) – Zero Gravity Return Tops](https://zgrt.ca/products/19-mm-x-13-mm-silicon-pad-pair?variant=46362307428502)

· Snow Tires - [Caribou Lodge Snow Tires Silcone Response Pads - Yo-Yo - by – ■■■■■■■](https://www.yoyosam.com/products/clyw-snow-tires-silcone-response-pads-yo-yo-by-caribou-lodge-return-tops?_pos=97&_sid=a18bd4189&_ss=r)

**Tools**

· Throw Key - MR85, A, D & C Bearing Removal Tool - [Throw Key – Zero Gravity Return Tops](https://zgrt.ca/products/simplistic-minimalistic-bearing-tool-v2?variant=41833965748374)

· C/D Puller [Sturm Panzer Bearing Puller](https://yoyoexpert.com/products/sturm-panzer-bearing-puller)

_·_ Bearing Flicker - [Bearing flicker tool v1.1 | Layer Infinity](https://www.layerinfinity.com/product/bearing-flicker-tool)

_·_ Knot Picker - [https://www.gsquaredyoyos.com/store/accessories/knot-picker/](https://www.gsquaredyoyos.com/store/accessories/knot-picker/)

· Bearing Cleaning Jar [https://modernyoyos.com/products/bearing-cleaning-storage-jar](https://modernyoyos.com/products/bearing-cleaning-storage-jar)

**Axles** (Reference List - [https://forums.yoyoexpert.com/t/common-yoyo-axle-sizes/18437](https://forums.yoyoexpert.com/t/common-yoyo-axle-sizes/18437))

· Assorted Standards - [https://modernyoyos.com/products/stainless-steel-yoyo-axels](https://modernyoyos.com/products/stainless-steel-yoyo-axels)

· Assorted Standards - [https://www.■■■■■■■.com/products/magicyoyo-replacement-axle-for-all-models?\_pos=184&\_sid=a18bd4189&\_ss=r](https://www.yoyosam.com/products/magicyoyo-replacement-axle-for-all-models?_pos=184&_sid=a18bd4189&_ss=r)

· Repair Service - [https://forums.yoyoexpert.com/t/stripped-yoyo-repair-service/442610](https://forums.yoyoexpert.com/t/stripped-yoyo-repair-service/442610)

· Helicoils – M4 - [https://www.mcmaster.com/products/helicoils/thread-pitch\~0-7-mm/?s=4mm+x+.7mm+helicoil](https://www.mcmaster.com/products/helicoils/thread-pitch%5C~0-7-mm/?s=4mm+x+.7mm+helicoil)

· Helicoils – More Sizes to be added as discovered – List

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