Skip to main content
Home / Bearings & Bushings / SF-2 45*50*32 Oil-Impregnated Bearing, Wear-Resistant Sleeve, Composite Sleeve, Bronze Bushing, Composite Liner, Shaft Sleeve

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Inner Diameter 45 mm
Outer Diameter 50 mm
Length 32 mm
Material Composition SF-2 Composite Bronze
Dynamic Load Rating 14,500 N
Static Load Rating 22,000 N
Max Sliding Speed 2.0 m/s
Operating Temperature -40°C to +110°C
Lubrication Type Self-Lubricating (Oil-Impregnated)
Manufacturing Standard ISO 3547 Compliant

5 reviews

A

Anonymous

Apr 15, 2026

Rating: 5/5

Exact Specifications

Measured them upon arrival. The 45x50x32 mm specs are accurate. Great for precision machinery.

A

Anonymous

Apr 04, 2026

Rating: 5/5

Perfect Fit for Industrial Pump

Installed these on a hydraulic pump shaft. Dimensions were spot on and the self-lubricating feature saves maintenance time.

A

Anonymous

Mar 29, 2026

Rating: 4/5

Good Quality, Slow Shipping

The bearing itself is robust and well-made. Took a bit longer to arrive than expected but worth the wait.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Excellent Wear Resistance

Using these in high-friction applications. No signs of wear after three months of continuous operation.

A

Anonymous

Jan 30, 2026

Rating: 4/5

Solid Value for Bulk

Bought ten units for our workshop. Consistent quality across all pieces. One had minor surface marks but functional.

5 FAQ

Q: Does this bearing require additional grease during installation?

A: No, this SF-2 bearing is oil-impregnated and self-lubricating. Additional grease is not required.

Q: Is this suitable for high RPM motor applications?

A: This bearing is best suited for low to moderate sliding speeds. For high RPM, please consult our high-speed series.

Q: Can this be used in outdoor equipment exposed to rain?

A: It can handle moderate exposure, but we recommend avoiding full submersion in water for extended periods.

Q: Is the inner surface smooth enough for a polished shaft?

A: Yes, the inner surface is honed to provide a smooth finish suitable for polished shafts.

Q: What is the hardness rating of the bronze layer?

A: The hardness is approximately 200 HB, providing a balance between durability and conformability.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Heavy-Duty Wiper Arms and Blades for Trucks and Agricultural Vehicles - Universal Replacement Wiper Rubber Strips

Heavy-Duty Wiper Arms and Blades for Trucks and Agricultural Vehicles - Universal Replacement Wiper Rubber Strips

$5.50

Bus Adapter FEPL-02 for ABB Variable Frequency Drive

Bus Adapter FEPL-02 for ABB Variable Frequency Drive

$1,230.00

Baby National Trend Rattle Toy – Chewable Silicone, Easy-Grip Handle, Soft Sound for Early Learning

Baby National Trend Rattle Toy – Chewable Silicone, Easy-Grip Handle, Soft Sound for Early Learning

$19.90

Palace Museum Creative Stationery: Light & Shadow Graffiti Coloring Book - Exquisite DIY Children's Gift, Ancient Style Watercolor Set for Boys and Girls, Early Learning Art Toy

Palace Museum Creative Stationery: Light & Shadow Graffiti Coloring Book - Exquisite DIY Children's Gift, Ancient Style Watercolor Set for Boys and Girls, Early Learning Art Toy

$29.70

Dongyi Study Room Antique Brass Water Pot, Brush Washer Basin, and Small Spoon Set for Calligraphy (3-Piece)

Dongyi Study Room Antique Brass Water Pot, Brush Washer Basin, and Small Spoon Set for Calligraphy (3-Piece)

$33.10

[Deposit Only] Slightly Round Mid-Heel Shoes – Matte Lambskin Puff Lolita Bow Pumps

[Deposit Only] Slightly Round Mid-Heel Shoes – Matte Lambskin Puff Lolita Bow Pumps

$38.00

Chunfei Grocery Store Yunan GR02 Gravel Bike with Thru-Axle Disc Brakes, Lightweight Touring Setup with Multiple Rack Mounts

Chunfei Grocery Store Yunan GR02 Gravel Bike with Thru-Axle Disc Brakes, Lightweight Touring Setup with Multiple Rack Mounts

$8,934.00

5A Natural Madagascar Rose Quartz Loose Beads, Pink Crystal Rhodonite Single Beads for DIY Jewelry Making Accessories

5A Natural Madagascar Rose Quartz Loose Beads, Pink Crystal Rhodonite Single Beads for DIY Jewelry Making Accessories

$0.70

Mini Portable Sketchbook - Blank Pocket Notebook for Doodling, Sketching, Watercolor, Acrylic, and Marker Art - Square Hand-Drawn Journal

Mini Portable Sketchbook - Blank Pocket Notebook for Doodling, Sketching, Watercolor, Acrylic, and Marker Art - Square Hand-Drawn Journal

$5.53

Kitchen Sink Drain Mat with Raised Slope - Splash-Proof Countertop Organizer for Faucet Areas

Kitchen Sink Drain Mat with Raised Slope - Splash-Proof Countertop Organizer for Faucet Areas

$9.00

Front Wheel Bearing for Hyundai Mistra - Mingtuo Brand - Also Fits Hyundai Sonata and Kia Opirus - Front and Rear Auto Bearings

Front Wheel Bearing for Hyundai Mistra - Mingtuo Brand - Also Fits Hyundai Sonata and Kia Opirus - Front and Rear Auto Bearings

$275.00

White Crystal Loose Beads Donghai Agate Gemstone Gold Rutilated Quartz Obsidian Bracelet Strand Aquamarine Amethyst Single Bead

White Crystal Loose Beads Donghai Agate Gemstone Gold Rutilated Quartz Obsidian Bracelet Strand Aquamarine Amethyst Single Bead

$8.42

Kids Art DIY Stamp Kit - Round Sponge Daubers, Mushroom Head Stamps, and Paint for Graffiti

Kids Art DIY Stamp Kit - Round Sponge Daubers, Mushroom Head Stamps, and Paint for Graffiti

$2.44

YP8 YP-80000 Book Block Pressing Machine Supply Robust Structure Reliable Application

YP8 YP-80000 Book Block Pressing Machine Supply Robust Structure Reliable Application

$23,790.00

Feileniao Four Seasons Flowers Line Drawing Atlas - Chinese Ink Painting Guide for Brush Beginners

Feileniao Four Seasons Flowers Line Drawing Atlas - Chinese Ink Painting Guide for Brush Beginners

$39.90

365 Days! Drummer Training Plan - Beginner Self-Study Guide for Drum Kits and Jazz Drums with Tutorial Audio

365 Days! Drummer Training Plan - Beginner Self-Study Guide for Drum Kits and Jazz Drums with Tutorial Audio

$55.00

New Rechargeable Electric Incense Making Machine – Compact Home Device for Extruding Coil, Sandalwood, and Stick Incense, Manual Incense Crafting Equipment

New Rechargeable Electric Incense Making Machine – Compact Home Device for Extruding Coil, Sandalwood, and Stick Incense, Manual Incense Crafting Equipment

$268.00

Tire Stone Removal Hook, Multi-Function Tool with Built-in Screwdriver for Window Breaking and Self-Defense

Tire Stone Removal Hook, Multi-Function Tool with Built-in Screwdriver for Window Breaking and Self-Defense

$7.51

Pearl Sand Wax, Ice Flower Wax, Floating Aromatherapy Candle Colored Suspended Particles for Atmosphere Decor and DIY Crafts

Pearl Sand Wax, Ice Flower Wax, Floating Aromatherapy Candle Colored Suspended Particles for Atmosphere Decor and DIY Crafts

$5.78

No-Drill Wall-Mounted Toilet Paper Holder and Storage Shelf for Bathroom

No-Drill Wall-Mounted Toilet Paper Holder and Storage Shelf for Bathroom

$19.30

Chain Sling Lifting Shackle Steel Chain Single Leg with Hooks on Both Ends for Towing, 2m Length, 5 Ton Capacity

Chain Sling Lifting Shackle Steel Chain Single Leg with Hooks on Both Ends for Towing, 2m Length, 5 Ton Capacity

$79.00

120L Milk Pasteurizer, Homogenizing Mixer, and Ice Cream Aging Machine - Factory Supply

120L Milk Pasteurizer, Homogenizing Mixer, and Ice Cream Aging Machine - Factory Supply

$59,892.00

LUBOSHI Automatic Retractable Hose Reel 12MM Water Drum PVC Braided Hose for Car Wash, Gardening, and Auto Repair - 15 Meters

LUBOSHI Automatic Retractable Hose Reel 12MM Water Drum PVC Braided Hose for Car Wash, Gardening, and Auto Repair - 15 Meters

$383.00

No-Drill Over-Toilet Storage Rack - Wall-Mounted Bathroom Organizer for Tank Gap

No-Drill Over-Toilet Storage Rack - Wall-Mounted Bathroom Organizer for Tank Gap

$19.84

Commercial Automatic Multi-Function Vegetable Cutter for Slicing, Dicing, and Shredding

Commercial Automatic Multi-Function Vegetable Cutter for Slicing, Dicing, and Shredding

$1,782.00

Zhonglian Hamburger Food Warmer Display Cabinet 1.2m 1.5m 3-in-1 Warmer Double-Layer Display Cabinet Crisp Keeper

Zhonglian Hamburger Food Warmer Display Cabinet 1.2m 1.5m 3-in-1 Warmer Double-Layer Display Cabinet Crisp Keeper

$3,376.00

A3 Watercolor Paper 300g Thickened Cotton Pulp Fine Grain, A4 Medium Grain for Beginners, 4K Wood Pulp Cotton Blank Hand-Painting Paper, Square Art Coloring Paper, Postcard & Bookmark Paper

A3 Watercolor Paper 300g Thickened Cotton Pulp Fine Grain, A4 Medium Grain for Beginners, 4K Wood Pulp Cotton Blank Hand-Painting Paper, Square Art Coloring Paper, Postcard & Bookmark Paper

$18.90

Sketch Gray Tone Pencils for Art Students, Detail Highlight Blending Stumps, Makeup Sponge Pens, Quick Sketch Eraser Pen Sets

Sketch Gray Tone Pencils for Art Students, Detail Highlight Blending Stumps, Makeup Sponge Pens, Quick Sketch Eraser Pen Sets

$6.46

Disposable Vacuum Cleaner Filter Mesh - Non-Woven Dust Bag with Elastic Band for Home Use

Disposable Vacuum Cleaner Filter Mesh - Non-Woven Dust Bag with Elastic Band for Home Use

$4.50

Systematic 3D Painting Learning Package (Includes 100 Lessons)

Systematic 3D Painting Learning Package (Includes 100 Lessons)

$798.00