Best Reliabot in 2026

Last Updated: Sep 27, 2023

At a Glance: Our Top Picks

ReliaBot 2PCs 8mm x 300mm (.315 x 11.81 inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric h8 Tolerance
#TOP1
Reliabot 2Pcs 8Mm X 300Mm (.315 X 11.81
9.8
PM SCORE
ReliaBot 2PCs 8mm x 400mm (.315 x 15.75 inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric h8 Tolerance
#TOP2
Reliabot 2Pcs 8Mm X 400Mm (.315 X 15.75
9.8
PM SCORE
ReliaBot 2PCs 8mm x 500mm (.315 x 19.69 inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric h8 Tolerance
#TOP3
Reliabot 2Pcs 8Mm X 500Mm (.315 X 19.69
9.8
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the best Reliabot of 2026

#TOP1

Reliabot 2Pcs 8Mm X 300Mm (.315 X 11.81 Inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric H8 Tolerance

RELIABOT
IT-RD048
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.12

Features

The material is carbon steel, which is very suitable for linear motion rod.

The surface has been chrome plated to enhance the hardness.

Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.

Diameter 8mm, tolerance -0.005mm to -0.03mm ( 7.995mm - 7.97mm)

Length 300mm, tolerance ± 0.5mm ( 299.5mm - 300.5mm )

#TOP2

Reliabot 2Pcs 8Mm X 400Mm (.315 X 15.75 Inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric H8 Tolerance

RELIABOT
IT-RD048
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.17

Features

The material is carbon steel, which is very suitable for linear motion rod.

The surface has been chrome plated to enhance the hardness.

Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.

Diameter 8mm, tolerance -0.005mm to -0.03mm ( 7.995mm - 7.97mm)

Length 400mm, tolerance ± 0.5mm ( 399.5mm - 400.5mm )

#TOP3

Reliabot 2Pcs 8Mm X 500Mm (.315 X 19.69 Inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric H8 Tolerance

RELIABOT
IT-RD048
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.22

Features

The material is carbon steel, which is very suitable for linear motion rod.

The surface has been chrome plated to enhance the hardness.

Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.

Diameter 8mm, tolerance -0.005mm to -0.03mm ( 7.995mm - 7.97mm)

Length 500mm, tolerance ± 0.5mm ( 499.5mm - 500.5mm )

Reliabot 2Pcs 12Mm X 400Mm (.472 X 15.75 Inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric H8 Tolerance

RELIABOT
RD067
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.02

Features

The material is carbon steel, which is very suitable for linear motion rod.

The surface has been chrome plated to enhance the hardness.

Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.

Diameter 12mm, tolerance -0.005mm to -0.03mm ( 11.995mm - 11.97mm)

Length 400mm, tolerance ± 0.5mm ( 399.5mm - 400.5mm )

#TOP5

Reliabot 500Mm T8 Tr8X8 Lead Screw And Brass Nut (Acme Thread, 2Mm Pitch, 4 Starts, 8Mm Lead) For 3D Printer Z Axis

RELIABOT
EU-RZ007-37
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.12

Features

Lead screw diameter 8mm, length 500mm, SUS304 stainless steel

Copper nut, with 4 holes for fixing to the machine

Thread: Acme thread

Screw pitch: 2mm; Lead: 8mm

If you want higher accuracy, it is recommended to use the anti backlash copper nut

#TOP6

Reliabot 200Mm T8 Tr8X8 Lead Screw And Brass Nut (Acme Thread, 2Mm Pitch, 4 Starts, 8Mm Lead) For 3D Printer Z Axis

RELIABOT
EU-RZ007-37
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.12

Features

Lead screw diameter 8mm, length 200mm, SUS304 stainless steel

Copper nut, with 4 holes for fixing to the machine

Thread: Acme thread

Screw pitch: 2mm; Lead: 8mm

If you want higher accuracy, it is recommended to use the anti backlash copper nut

#TOP7

Reliabot 450Mm T8 Tr8X8 Lead Screw And Brass Nut (Acme Thread, 2Mm Pitch, 4 Starts, 8Mm Lead) For 3D Printer Z Axis

RELIABOT
EU-RZ007-37
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.12

Features

Lead screw diameter 8mm, length 450mm, SUS304 stainless steel

Copper nut, with 4 holes for fixing to the machine

Thread: Acme thread

Screw pitch: 2mm; Lead: 8mm

If you want higher accuracy, it is recommended to use the anti backlash copper nut

Reliabot 2Pcs Kfl001 (Kfl12) Id12Mm Mounted Flange Block Bearings Self-Aligning Zinc Aluminum Alloy Support For Diameter 12Mm Linear Motion Shaft Rod

RELIABOT
RD128-12
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.02

Reliabot 400Mm T8 T8X4 Tr8X4 Lead Screw And Brass Nut (Acme Thread, 2Mm Pitch, 2 Start, 4Mm Lead) For 3D Printer And Cnc Machine Z Axis

RELIABOT
EU-RZ007-37
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.02

Features

Lead screw diameter 8mm, length 400mm, SUS304 stainless steel

brass nut, with 4 holes for fixing to the machine

Thread: Acme thread

Screw pitch: 2mm; Number of Thread/Start:2; Lead: 4mm (pitch*thread=lead)

If you want higher accuracy, it is recommended to use the anti backlash spring loaded nut

#TOP10

Reliabot 350Mm Mgn12 Linear Rail Guide With Mgn12H Carriage Block For 3D Printer And Cnc Machine

RELIABOT
RZ004-G
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.12

Features

350mm MGN12 linear rail guide with MGN12H block

There are 2 red rubber stoppers to keep the block on the rail

Threaded holes of the block: 4-M3*3.5; center distance of the holes: 20*20mm

There are 14 holes on the rail for fixing the rail to the machine with M3 nut and screw, and it is suggested to use T nut M3 if you fix it to 20 series EU Al-profile

Come with 2 spare balls in the package for backup

#TOP11

Reliabot 550Mm Mgn12 Linear Motion Rail Guide With Mgn12H Carriage Block For 3D Printer And Cnc Machine

RELIABOT
RZ005-550-Y
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.12

Features

Made of bearing steel, with good rigidity

There are 2 ties or rubber stoppers to keep the block on the rail in case the block falls from the rail

Threaded holes of the block: 4-M3*3.5; center distance of the holes: 20*20mm

It is suggested to use T nut M3 if you fix it to 20 series EU Al-profile

Come with 2 spare balls in the package for backup

Reliabot 150Mm T8 Tr8X2 Lead Screw And Brass Nut (Acme Thread, 2Mm Pitch, 1 Start, 2Mm Lead) For Lcd Dlp Sla 3D Printer And Cnc Machine Z Axis

RELIABOT
EU-RZ007-37
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.02

Features

Lead screw diameter 8mm, length 150mm, SUS304 stainless steel

Brass nut, with 4 holes for fixing to the machine

Thread: Acme thread

Screw pitch: 2mm; Number of Thread/Start:1; Lead: 2mm (pitch*thread=lead)

If you want higher accuracy, it is recommended to use the anti backlash spring loaded nut

#TOP13

Reliabot Round Platform Strong Adhesion Circular Hot Bed Tempered Glass Print Surface Diameter 240Mm Thickness 3Mm For Kossel Delta 3D Printer Hotbed

RELIABOT
UK-RD026
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.17

Features

Diameter 240.5±0.5mm ( 9.44") , thickness 3mm ( 0.118"). Suitable for Delta 3D printer hot bed

Can work at high temperature up to 250 degree.

The edge of the plate has been polished, so it won't hurt hands

Strong adhesion during heating, and the printed parts will separate from the platform after cooling down

Very suitable for printing large parts without extra adhesive or tape when it is heated

Reliabot 2Pcs Flexible Couplings 6.35Mm To 8Mm For Nema 23 Shaft And T8 Lead Screw For Reprap 3D Printer Or Cnc Machine

RELIABOT
RD030-F
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.02

Features

ID 6.35mm to 8mm, suitable for Nema 23 stepper motor and T8 lead screw

With 4 set screws on each coupling

Suitable for 3D printer or CNC machine Z axis

#TOP15

Reliabot 2Pcs Lm8Luu Linear Ball Bearing Nickel Plated 8Mm X 15Mm X 45Mm For 8Mm Linear Motion Shaft For 3D Printer And Cnc Machine

RELIABOT
RD046-2
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.17

Features

Made from carbon steel (1045), rigid and wear-resistant

The surface has been Nickel Plated for anti-rust purpose, brighter than ordinary linear bearings

Both ends have seals, and internal retainer is made from synthetic resin, so do not use it at more than 80 degrees

Size: bore 8mm, OD 15mm ( tolerance 0 to -0.013mm ), length 45mm ( tolerance 0 to -0.3mm)

Inner diameter 8mm, tolerance 0 to -0.01mm, suitable for diameter 8mm linear motion shaft

Reliabot 4Pcs Scs8Uu Linear Motion Ball Bearing Box Type Cnc Slide Unit Bushing 30Mm Long Linear Roller Bearing Slide Block

RELIABOT
RD117-4
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.02
#TOP17

Reliabot 2Pcs 8Mm X 362Mm (.315 X 14.25 Inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric H8 Tolerance

RELIABOT
IT-RD048
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.12

Features

The material is carbon steel, which is very suitable for linear motion rod.

The surface has been chrome plated to enhance the hardness.

Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.

Diameter 8mm, tolerance -0.005mm to -0.03mm ( 7.995mm - 7.97mm)

Length 362mm, tolerance ± 0.5mm ( 361.5mm - 362.5mm )

Reliabot Lmf8Luu Circular Flange Linear Ball Bearing Bushing Nickel Plated For 8Mm Linear Motion Shaft Of 3D Printer And Cnc Machine

RELIABOT
RD051
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.17

Features

Made from carbon steel (1045), rigid and wear-resistant

The surface has been Nickel Plated for anti-rust purpose, brighter than ordinary linear bearings

Both ends have seals, and internal retainer is made from synthetic resin, so do not use it at more than 80°C

Size: bore 8mm, OD 15mm ( tolerance 0 to -0.013mm ), length 45mm ( tolerance 0 to -0.3mm)

Inner diameter 8mm, tolerance 0 to -0.010mm, suitable for diameter 8mm linear motion shaft

#TOP19

Reliabot Lmk12Luu Flange Linear Ball Bearing Bushing Nickel Plated For 12Mm Linear Motion Shaft For 3D Printer And Cnc Machine

RELIABOT
RD049
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.07

Features

Very suitable for 3D printer Z aixs, diameter 12mm linear motion shaft / rod

Length 57mm, inner diameter 12mm, outer diameter 21mm

Please use M4 nuts to fix this bearing to the machine

Material: carbon steel (1045), rigid and wear-resistant

The surface has been Nickel Plated for anti-rust purpose, brighter than ordinary linear bearings

Reliabot 2Pcs Lmk8Luu Square Flange Linear Ball Bearing Bushing Nickel Plated For 8Mm Linear Motion Shaft Of 3D Printer And Cnc Machine

RELIABOT
RD110-2
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.02

Features

Very suitable for 3D printer or CNC machine diameter 8mm linear motion shaft / rod

Length 45mm, inner diameter 8mm, outer diameter 15mm

Please use M3 nuts to fix this bearing to the machine

Material: carbon steel (1045), rigid and wear-resistant

The surface has been Nickel Plated for anti-rust purpose, brighter than ordinary linear bearings

#TOP21

Reliabot 2Pcs 8Mm X 300Mm (.315 X 11.81 Inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric H8 Tolerance

RELIABOT
IT-RD048
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.12

Features

The material is carbon steel, which is very suitable for linear motion rod.

The surface has been chrome plated to enhance the hardness.

Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.

Diameter 8mm, tolerance -0.005mm to -0.03mm ( 7.995mm - 7.97mm)

Length 300mm, tolerance ± 0.5mm ( 299.5mm - 300.5mm )

#TOP22

Reliabot 2Pcs 8Mm X 400Mm (.315 X 15.75 Inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric H8 Tolerance

RELIABOT
IT-RD048
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.17

Features

The material is carbon steel, which is very suitable for linear motion rod.

The surface has been chrome plated to enhance the hardness.

Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.

Diameter 8mm, tolerance -0.005mm to -0.03mm ( 7.995mm - 7.97mm)

Length 400mm, tolerance ± 0.5mm ( 399.5mm - 400.5mm )

#TOP23

Reliabot 2Pcs 8Mm X 500Mm (.315 X 19.69 Inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric H8 Tolerance

RELIABOT
IT-RD048
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.22

Features

The material is carbon steel, which is very suitable for linear motion rod.

The surface has been chrome plated to enhance the hardness.

Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.

Diameter 8mm, tolerance -0.005mm to -0.03mm ( 7.995mm - 7.97mm)

Length 500mm, tolerance ± 0.5mm ( 499.5mm - 500.5mm )

#TOP24

Sackorange 608 Zz Skateboard Bearings, Double Shielded,8X22X7 Miniature Ball Bearings(Pack Of 20)

SACKORANGE
CS-SACK-038
0.31 X 0.28 X 0.87 Inches
0.04 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Sackorange 9.87

Features

Single-row bearing for supporting radial loads

Shields on both sides of the bearing to keep lubricant in and contaminants out

Carbon steel for durability and resistance to deformity under heavy loads

34,000 rpm limit with grease lubrication

Dimensions suitable for use in such applications as skateboards, inline skates, and scooters

3D Printer Cnc Parts Lm8Luu Linear Bearing Set For Jgaurora Voron Monoprice Maker Select, Extra Longer Double Sealed Chrome Steel Lm08Luu Bearings, 8Mm Bore Size 8X15X45Mm, Pick Of 4Pcs

FUSHIBEARING
LM
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FUSHI BEARING 9.41

Features

Model: LM8LUU Bore Diamter (dr): 8mm, Outer Diameter (D): 15mm, Total Length (L): 45mm)

It is generally used on 3D printers and CNC machines. These bearings have proven to be long lasting and provide precise low friction linear movement.

Used for the design of linear motion products it can cooperate with linear bearing to ensure excellent sports performance under high load or long stroke occasions.

Smooth moving, low friction, high rigidity and long life.

Bearing various parts of the size is standardized, interchangeable, no worry if replacement of worn

Reliabot 2Pcs Kfl001 (Kfl12) Id12Mm Mounted Flange Block Bearings Self-Aligning Zinc Aluminum Alloy Support For Diameter 12Mm Linear Motion Shaft Rod

RELIABOT
RD128-12
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ReliaBot 8.02

4Pcs Sbr20Uu Aluminum Block 20Mm Linear Motion Ball Bearing Slide Block Match For Sbr20 20Mm Linear Guide Rail

RATTMMOTOR
SBR20
0.94 X 0.00 X 0.00 inches
1.65 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Kuku Tech 7.38

Features

Cooperate with open linear bearing to ensure excellent sports performance

The external material :Aluminum Alloy

100% Brand new and high quality

Supports performance under high load or long stroke

Smooth moving,low friction,high performance and long life

Chuangneng Sbr12Uu 12Mm 4Pcs Linear Bearing Block Aluminum Open Linear Motion Bearing Slide Unit With Open Bearing For Linear Rail

CHUANGNENG
MURN142323T7BK5409
1.54 X 1.61 X 1.10 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Taume 5.98

Features

COMPATIBLE: This Slide Block is fit for SBR12 12mm Linear Guide Rail

EASY TO INSTALL: With pre-drilled holes for ease of mounting. Easy to install, no need for maintenance.

HIGH-QUALITY STEEL MATERIAL: Slide Block are made of carbon steel, linear Bearings made of quality bearing steel with aluminum alloy housing. Surface chrome plating treatment beautiful anti-rust, high hardness, more durable.

PREMIER LINEAR GUIDING SYSTEM: Industrial-grade standard SBR block, with a high precision linear bearing inside.

WIDE APPLICATION:The Slide Block is widely used in the automation machinery such as DIY CNC routers, lathes, machine tools, bending machines, laser welding machines, etc. Also applicable for large-scale transmission equipment, including industrial robots, cracker machines.

12 Pcs Lm8Uu Linear Ball Bearings, 8Mm Bore Dia, 15Mm Od, 24Mm Length With Double Side Rubber Seal Great For Cnc, 3D Printer

EDONEERY
BEARINGLM8UU-12 PCS
0.35 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
YuHuiH 9.87

Features

Model: LM8UU, Bore Diamter (dr): 8mm, Outer Diameter (D): 15mm, Total Length (L): 24mm.

It is generally used on 3D printers and CNC machines. These bearings have proven to be long lasting and provide precise low friction linear movement.

Used for the design of linear motion products it can cooperate with linear bearing to ensure excellent sports performance under high load or long stroke occasions.

Smooth moving, low friction, high rigidity and long life. Bearing various parts of the size is standardized, interchangeable, no worry if replacement of worn.

We aim to provide the high quality products and best services for customers. If there is any problem with your purchase, please feel free to contact us, we will try our best to help you.

Uxcell Lm25Uu Linear Ball Bearings 25Mm Bore 40Mm Od 59Mm Long For Cnc Machine 3D Printer 4Pcs

UXCELL
A18071300UX0272
5.51 X 3.94 X 1.97 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
uxcell 9.95

Features

[SIZE] - Model: LM25UU, 25x40x59mm Metric Double Seal Linear Bearing

[USAGE] - Linear bearings are part of linear motion systems, often used in conjunction with cylindrical shafts or guideways.

[FEATURES] - These ball bearing with two rubber dust sealed to prevent ingress of dirt, water and foreign matter

[CAPABILITY] - Static Load Capacity (Cor): 980N, Dynamic Load Capacity (Cr): 1570N (Recommended load is 80% of rated load, not to exceed rated load.)

[APPLICATIONS] - Mechanical slides, 2-axis and 3-axis tables, linear tables, 3D printers, ect.

Reliabot on Amazon: A Comprehensive Review

As an online shopper, it's crucial to make informed decisions. This review will focus on Reliabot, a brand that has made its presence felt on Amazon. With its wide range of products in Linear Ball Bearings, Reliabot has become a go-to for many shoppers.

Product Range

Reliabot offers a vast product count of 78 items. This diverse selection caters to a wide array of needs and preferences, making it a versatile brand for consumers.

Quality and Pricing

Quality is a defining factor for any brand. Based on customer feedback and ratings, Reliabot's products have an average rating of 5.2 out of 10, indicating a high level of customer satisfaction.

When it comes to pricing, Reliabot has products ranging from a minimum price of $6.49 to a maximum of $88.95, with an average price of $16.66. This pricing structure caters to a wide range of budgets, making Reliabot an accessible choice for many shoppers.

Customer Service

Customer service is the backbone of any successful online brand. Reliabot is sold by reliabot, who are known for their commitment to customer satisfaction. They have been responsive and helpful, according to customer reviews and feedback.

Shopping Experience

The shopping experience on Amazon with Reliabot has been largely positive. The brand's wide range of products, combined with the ease of navigation on Amazon, has made shopping a breeze for many customers.

Delivery and Packaging

Delivery and packaging are yet another aspect where Reliabot shines. Items are delivered in a timely manner and the packaging ensures the products reach the customers in pristine condition.

Conclusion

In conclusion, Reliabot offers a wide range of quality products at varying price points, making it a brand worth considering for your next Amazon purchase. Their commitment to customer service, combined with a seamless shopping experience, makes Reliabot stand out in the crowded Amazon marketplace.

Overall Rating

Based on the analysis of product range, quality, pricing, customer service, shopping experience, and delivery, we rate Reliabot [5.2 out of 10 stars].