Skip to main content
Home / Bearings & Bushings / LMK Square Base Flange Linear Bearing, Cylindrical Rail, Smooth Shaft Guide, Extended UU Bushing

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Model Number LMK12UU
Shaft Diameter 12 mm
Outer Diameter 21 mm
Overall Length 57 mm
Flange Width 30 mm
Flange Thickness 4 mm
Material Bearing Steel & Aluminum
Precision Grade ABEC-1
Lubrication Pre-greased
Package Includes 2 x Linear Bearings

5 reviews

A

Anonymous

Apr 15, 2026

Rating: 5/5

Smooth Operation

Very smooth sliding action on the ground shaft.

A

Anonymous

Apr 07, 2026

Rating: 5/5

Reliable Replacement

Replaced my old LHF bearings without any issues.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Perfect Fit

Works exactly as described for my CNC project.

A

Anonymous

Mar 05, 2026

Rating: 4/5

Good Value

Quality is good for the price, slightly tight initially.

A

Anonymous

Feb 09, 2026

Rating: 5/5

Fast Delivery

Arrived quickly and well packaged. No damage.

5 FAQ

Q: Does this fit a 12mm hardened shaft?

A: Yes, designed for standard 12mm ground shafts.

Q: Can this be used vertically?

A: Yes, it supports vertical loads within rated capacity.

Q: Is this sold as a pair?

A: Please check the package contents, typically sold in pairs or singles.

Q: What are the mounting hole dimensions?

A: Mounting holes are spaced 24mm apart center-to-center.

Q: Is additional lubrication required?

A: It comes pre-lubricated, but maintenance is recommended over time.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Zhang Xiaofeng 'Fu Lu' Hotpot Inkstone Set – Covered Ceramic Ink Well for Calligraphy and Chinese Painting

Zhang Xiaofeng 'Fu Lu' Hotpot Inkstone Set – Covered Ceramic Ink Well for Calligraphy and Chinese Painting

$38.00

Invisalign Orthodontic Retainer Case, Portable Storage and Cleaning Box for Aligners and Dentures

Invisalign Orthodontic Retainer Case, Portable Storage and Cleaning Box for Aligners and Dentures

$12.30

Natural 7A Lavender Loose Beads Single Round Bead DIY Amethyst Spacer Beads Jewelry Making Semi-Finished Accessories

Natural 7A Lavender Loose Beads Single Round Bead DIY Amethyst Spacer Beads Jewelry Making Semi-Finished Accessories

$0.88

Paint Brush Cleaner - Mini Toilet Style Rinser for Watercolor and Gouache, Art Supply with Circulating Water System

Paint Brush Cleaner - Mini Toilet Style Rinser for Watercolor and Gouache, Art Supply with Circulating Water System

$16.90

Traditional Wooden Rattle Drum with Sheepskin Head for Early Education, Visual Tracking and Hearing Training for Newborn Boys and Girls

Traditional Wooden Rattle Drum with Sheepskin Head for Early Education, Visual Tracking and Hearing Training for Newborn Boys and Girls

$10.80

Car Tire Stone Removal Hook, Stainless Steel Multi-Function Tool for Cleaning Pebbles from Tires

Car Tire Stone Removal Hook, Stainless Steel Multi-Function Tool for Cleaning Pebbles from Tires

$6.21

Factory Direct Mining Round Link Chains - High Cost-Performance Lifting Chains for Mining Applications

Factory Direct Mining Round Link Chains - High Cost-Performance Lifting Chains for Mining Applications

$153.00

Hangzhou Stomatological Hospital Dental Implant Initial Consultation Package – CT Scan, Missing Tooth Exam, and Custom Implant Plan Design

Hangzhou Stomatological Hospital Dental Implant Initial Consultation Package – CT Scan, Missing Tooth Exam, and Custom Implant Plan Design

$1.00

Rockschool Acoustic Guitar Method Book (Chinese Edition) – Folk & Rock Guitar Grading Curriculum for Schools

Rockschool Acoustic Guitar Method Book (Chinese Edition) – Folk & Rock Guitar Grading Curriculum for Schools

$145.00

Commercial Food Warmer Cabinet, Small Heating Thermostat Display Counter for French Fries, Egg Tarts, Enlarged Chestnuts, and Fried Chicken

Commercial Food Warmer Cabinet, Small Heating Thermostat Display Counter for French Fries, Egg Tarts, Enlarged Chestnuts, and Fried Chicken

$334.00

Natural Green Peridot Crushed Stone, Small Raw Particles for Demagnetizing Energy, Aquarium Landscaping DIY Accessories

Natural Green Peridot Crushed Stone, Small Raw Particles for Demagnetizing Energy, Aquarium Landscaping DIY Accessories

$8.50

3M 5-Inch Flocked Abrasive Disc with Hook-and-Loop Backing – Polishing Pad for Angle Grinders, Rust Removal & Cleaning

3M 5-Inch Flocked Abrasive Disc with Hook-and-Loop Backing – Polishing Pad for Angle Grinders, Rust Removal & Cleaning

$3.20

Children DIY Art Rubbing Stick Round Painting Sponge Brush Graffiti Stamp Tool Kindergarten Rubbing Materials

Children DIY Art Rubbing Stick Round Painting Sponge Brush Graffiti Stamp Tool Kindergarten Rubbing Materials

$2.61

Over-Toilet Storage Rack for Bathroom - Organizer for Tissue, Toiletries, and Body Wash

Over-Toilet Storage Rack for Bathroom - Organizer for Tissue, Toiletries, and Body Wash

$23.46

Magbase Cable Organizer with Dual Strong Magnets for Car, Office, and Home - Holds Power Cables, Ethernet, and Charging Cables

Magbase Cable Organizer with Dual Strong Magnets for Car, Office, and Home - Holds Power Cables, Ethernet, and Charging Cables

$24.90

Multi-Purpose Industrial Wiping Cloth 30*35 - Lint-Free Oil-Absorbent Paper for Aviation, Metro, and Rail Systems

Multi-Purpose Industrial Wiping Cloth 30*35 - Lint-Free Oil-Absorbent Paper for Aviation, Metro, and Rail Systems

$98.00

Commercial Electric Dicing Machine - Multi-Function Slicer for Carrots and Potatoes

Commercial Electric Dicing Machine - Multi-Function Slicer for Carrots and Potatoes

$852.00

[Single Pack] Handwoven Bird Nest Drop Net Cotton Rope Crochet Fruit Mesh Bag Storage Organizer

[Single Pack] Handwoven Bird Nest Drop Net Cotton Rope Crochet Fruit Mesh Bag Storage Organizer

$10.36

Car Tire Lug Nuts - External Hex Cone Seat Wheel Bolts for Custom Rims

Car Tire Lug Nuts - External Hex Cone Seat Wheel Bolts for Custom Rims

$80.00

Infant Sheepskin Rattle Baby Toy for Courage Building, Solid Wood Unpainted Chewable Glue-Free Version for Audio-Visual Grasping Early Education

Infant Sheepskin Rattle Baby Toy for Courage Building, Solid Wood Unpainted Chewable Glue-Free Version for Audio-Visual Grasping Early Education

$18.25

New Transparent Heat-Preserving Display Case for Roast Duck - Commercial Crispy Pork Belly Warmer with Eco-Friendly Design

New Transparent Heat-Preserving Display Case for Roast Duck - Commercial Crispy Pork Belly Warmer with Eco-Friendly Design

$636.00

Electric Watercolor Spray Pen Children Hand-painted Color Pa

Electric Watercolor Spray Pen Children Hand-painted Color Pa

$46.55

Meiyike Water-Soluble Fertilizer with Major Elements – Hua Duo Duo No.1, No.2, No.10 Formulas, High Nitrogen, Phosphorus, Potassium Specialized Compound Fertilizer

Meiyike Water-Soluble Fertilizer with Major Elements – Hua Duo Duo No.1, No.2, No.10 Formulas, High Nitrogen, Phosphorus, Potassium Specialized Compound Fertilizer

$49.34

Waterproof Swim Bag, Wet Clothes Storage Tote with Handle, Large-Capacity Outdoor Hot Spring Pouch Dedicated for Mobile Phones

Waterproof Swim Bag, Wet Clothes Storage Tote with Handle, Large-Capacity Outdoor Hot Spring Pouch Dedicated for Mobile Phones

$59.96

Magic Expandable Bag, Foldable Shopping Tote, Portable Large-Capacity Storage for Grocery, Travel, and Mall Trips

Magic Expandable Bag, Foldable Shopping Tote, Portable Large-Capacity Storage for Grocery, Travel, and Mall Trips

$6.80

Dancolin Blending Stump Set for Oil Pastels, Art Student Tools for Heavy-Color Oil Painting, Dual-Tip Pointed and Round DIY Soft Wax Drawing, Smudging, Mixing, Highlighting, Erasable Knife for Painting and Color Blending

Dancolin Blending Stump Set for Oil Pastels, Art Student Tools for Heavy-Color Oil Painting, Dual-Tip Pointed and Round DIY Soft Wax Drawing, Smudging, Mixing, Highlighting, Erasable Knife for Painting and Color Blending

$16.80

Shanlian Hubei Brush Small Perfect Brush Washer - Ceramic Ink Dish, Calligraphy Cleaning Tool, Moisturizing Water Pot, Art Supply Decor

Shanlian Hubei Brush Small Perfect Brush Washer - Ceramic Ink Dish, Calligraphy Cleaning Tool, Moisturizing Water Pot, Art Supply Decor

$14.20

Yanyu Mineral Water Fish Tank Stand - Triangular Bracket for Inverted Bottle Self-Made Water Circulation System

Yanyu Mineral Water Fish Tank Stand - Triangular Bracket for Inverted Bottle Self-Made Water Circulation System

$17.05

Jingdezhen Pink Peony Flourishing Tea Canister Ceramic Lidded Loose Tea Storage Jar CYG-4578 One Jin Capacity Pu'er

Jingdezhen Pink Peony Flourishing Tea Canister Ceramic Lidded Loose Tea Storage Jar CYG-4578 One Jin Capacity Pu'er

$450.60

Round Sponge Brush Stamp with Mushroom Head – Printing Tool for Kindergarten Art and Kids' Crafts

Round Sponge Brush Stamp with Mushroom Head – Printing Tool for Kindergarten Art and Kids' Crafts

$0.27