Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | High-Strength Copper Alloy with Embedded Graphite |
| Product Type | Round Flanged Bushing |
| Lubrication | Self-Lubricating (Oil-Free) |
| Available Sizes | MPTZ30, MPTZ35, MPTZ40, MPTZ50 |
| Inner Diameter Tolerance | H7 Standard |
| Hardness | HB 90 - 120 |
| Max Dynamic Load | 25 N/mm² |
| Operating Temperature | -10°C to +160°C |
| Friction Coefficient | 0.08 - 0.12 (Running) |
| Surface Treatment | Polished Inner Bore |
Anonymous
Mar 03, 2026
Rating: 4/5
Solid performance
Works well in dry conditions. Make sure to follow the press-fit instructions carefully during installation to avoid deformation.
Anonymous
Feb 23, 2026
Rating: 5/5
Excellent for automated machinery
We replaced our standard oil-lubricated bushings with these graphite embedded ones. The reduction in maintenance is significant. No oil leaks anymore.
Anonymous
Feb 17, 2026
Rating: 5/5
Reliable industrial component
Ordered a batch for our production line. Consistency across all units is great. Will order again for the next quarter.
Anonymous
Feb 07, 2026
Rating: 5/5
Solved our friction issue
Running these in a high-load application. The graphite plugs are evenly distributed. Very satisfied with the wear resistance so far.
Anonymous
Feb 05, 2026
Rating: 4/5
Good quality, precise fit
The MPTZ40 model fit our shaft perfectly. Hardness is as described. Took off one star because shipping packaging was slightly damaged, but the product was fine.
Q: What is the recommended shaft tolerance for the MPTZ50 size?
A: We recommend a shaft tolerance of e7 or f7 for optimal running clearance with the H7 bore.
Q: Can these be used in outdoor environments with rain exposure?
A: Yes, the copper alloy offers good corrosion resistance, but we recommend checking specific chemical compatibility for harsh environments.
Q: Do these bushings require any initial grease or oil before installation?
A: No, these are designed to be oil-free. The embedded graphite provides lubrication during operation.
Q: What is the maximum rotational speed these can handle?
A: For continuous operation, we recommend speeds below 0.5 m/s to ensure optimal wear life of the graphite plugs.
Q: Is the flange thickness standard across all sizes?
A: The flange thickness varies slightly depending on the inner diameter model to ensure structural integrity. Please refer to the technical drawing.
Handcrafted Sheepskin Rattle & Peach Wood Shaker - Pure Copper Brass Bells, Vintage Wooden Toy Safe for Infant Chewing
$31.50
RIDE ON TIME Tatsuro Yamashita Mr. Fuki Saxophone Trio Accurate Transcription Service
$34.00
Metal Unveiling Stand for Ribbon-Cutting Ceremonies - Vertical Display Rack for Grand Openings, Advertising Signs, and Plaques
$159.00
Children's Art Supplies Round Sponge Brush Painting Graffiti Tool Mushroom Head Stamp Kindergarten DIY Rubbing Art
$2.45
Weak Alkaline Water Equipment Wahaha 9.0 Soda Water Small Molecule Water Stable Storage for 24 Months Electrolysis Water Maker
$20,160.00
RefComp Snowman Italy Refcon Low-Temperature Cold Storage Semi-Hermetic Unit SP2L 0600 (55㎡ Dual)
$7,200.00
Compact Home Range Hood - Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal
$39.00
IoT Leakage Circuit Breaker with Remote Control via EasyLink, Featuring Metering and Protection
$510.75
Mia Art Quick-Absorb Sponge for Watercolor Painting - Soft, Durable, Brush-Safe Cleaning and Blending Tool for Students
$4.25
Incense Burner Pad with Fire-Resistant Cotton - High-Temperature Resistant, Heat-Proof, Home Use, Round Insulating Flame-Retardant Mat for Incense Boxes and Aromatherapy
$3.29
Quilt Storage Bag for Clothes, Cotton Quilts, and Down Jackets - Large Capacity Moving Luggage Compression Organizer
$11.80
Welding Fume Purifier – Effective Dust Collection and Control
$15,740.00
Discount Cocktail Bun and Sausage Bun Electric Heated Display Cabinet for Egg Tarts and Roasted Sweet Potatoes
$7,633.00
Paint Brush Cleaner with Suction Pump for Watercolor, Gouache, and Acrylics - Essential Tool for Artists
$14.80
Anserui Portable Tire Stone Removal Hook - Multi-Function Car Tire Cleaning Tool
$23.32
New 420D Oxford Cloth Black Outdoor Leaf Blower Vacuum Bag, Yard Debris Collection and Storage Bag
$26.00
RoHS Environmental Protection Tester for Electronic Component Solder Joints and PCB Lead/Heavy Metal Detection
$6,580.00
![[Blueberry Midsummer] Qianmu Original Pastoral Lolita Daily JSK Dress, Full Length](https://www.gosteppe.com/cache/small/product/269777/legacy-main-555e8a83b64390f8a24c4ff4.webp)
[Blueberry Midsummer] Qianmu Original Pastoral Lolita Daily JSK Dress, Full Length
$128.00
Watercolor Coloring Line Art Paper - Gourmet Theme Cotton Pulp Sketchbook for Tracing and Creativity
$12.80
Industrial Boiler Oxygen-Enriched Combustion System - Technical Specs for Industrial Oxygen Generators
$1,135,199.00
Tanker Truck and Modified Trailer Rear Axle Tires - 445/65R22.5, 425/65R22.5, 385/65R22.5
$1,500.00
Ancient Craft Mini Peach Wood Rattle Drum Traditional Intangible Cultural Heritage Custom Handmade Toy for Infants
$198.00
Welding Fume Purifier Mobile Welding Fume Extractor Electric Welding Dust Removal Equipment Welding Fume Machine
$5,200.00
Japanese Imported Invisible Retainer Case - Portable Cleaning and Soaking Box for Children's Orthodontic Aligners and Dentures
$8.42
Promotional Giveaways for Schools - Cartoon Whistles and Rattles for Marketing and Lead Generation
$3.29
Premium Used Car Tires in Sizes 145-225, 80-90% New Condition
$54.00
Original Car Tires - Used Passenger Van Tires in Sizes 175/185/195/205 R13/R14/R15/R16/R17
$59.00
BeeNesting Waterproof Bag, Wet/Dry Separation, Large Capacity Storage for Swimming, Beach, Camping, Travel, Outdoor 12+20L
$33.10
Custom Acrylic UV Printed Advertising Signs - Office Door Plates, ID Tags, Number Plaques, and Small Signboards
$1.00
Car Tire Stone Removal Tool - Hook Pick for Cleaning Gravel from Vehicle Treads
$4.53
![[M2-M20] Stainless Steel Spring Washer](https://www.gosteppe.com/cache/medium/product/16306/legacy-main-ef3d2dba3bde669d48e6cca2.webp)
