Oil-Free Leader Bushings
Self-lubricating bushings with embedded solid lubricant — pair with oil-free leader pins for completely maintenance-free, contamination-free mold guidance.
Products
Demountable Self-Lubricating Shoulder Bushings (Inch)
Inch demountable self-lubricating shoulder bushings with solid graphite plugs for maintenance-free die guidance.
View Details
LDB Plain Guide Bushings for Die Sets | Oil Groove Type, Loctite Bonded | Engineering Reliability
LDB Plain Guide Bushings for die sets with oil groove design and Loctite adhesive bonding. Reduce friction, support alignment, and request a quote.
View Details
LFB Plain Guide Bushings for Die Sets with Oil Groove, Loctite Adhesive | Bushing Only
LFB plain guide bushings for die sets with oil groove design and Loctite adhesive bonding. Copper alloy bushing only for stable alignment in die sets.
View Details
DIN Standard Oil-Free Plain Guide Bushings (LDBZ) Bonded by Loctite | Fast Delivery
Oil-free plain guide bushings for die sets, type LDBZ, bonded with Loctite adhesive for secure mounting. Suitable for precise die alignment. Request a
View Details
LFBZ Plain Guide Bushings for Die Sets Oil-Free Copper Alloy | Loctite Bonded | MISUMI Advantage
Plain guide bushings for die sets (LFBZ) for oil-free copper alloy, bonded with Loctite adhesive for stable alignment in die assemblies. Request a quo
View Details
Plain Guide Bushings for Die Sets Oil Groove Type | Loctite-Bonded LDB | MISUMI Advantage
Plain Guide Bushings for Die Sets LDB for die-set alignment. Oil groove and Loctite adhesive bonding help hold bushings in place. Request a quote.
View Details
Inch Plain Guide Bushings (Bronze-Plated) Pressed Fit | Loctite Adhesive Mounting | Lamina
Plain guide bushings for die and frame alignment in inch systems. Bronze-plated for wear resistance, Loctite adhesive mounting for secure press-fit re
View Details
Inch Standard Plain Guide Bushings (Oil-Free) | Lempco LEMPCO | Reliable Alignment
Inch Plain Guide Bushings Oil-Free by LEMPCO for die sets. Oil-free copper alloy, detachable design and Loctite bonding for reliable alignment. Reques
View DetailsSelf-Lubricating Material Properties
Oil-free leader bushings use the same composite technology as oil-free leader pins: a bronze matrix with embedded pockets of solid lubricant. When paired with a matching oil-free leader pin, both surfaces transfer lubricant to each other, creating a low-friction interface without any external lubrication.
Key properties of the self-lubricating composite:
- Operating temperature: -40°C to +300°C (graphite version) or -40°C to +200°C (PTFE version)
- PV limit: 3.0 N/mm² × m/s (PTFE) to 5.0 N/mm² × m/s (graphite) — within mold leader pin operating range
- Friction coefficient: 0.05-0.15 (vs 0.15-0.30 for dry metal-on-metal)
About Oil-Free Leader Bushings
Oil-free leader bushings contain embedded solid lubricant (PTFE or graphite) distributed throughout the bronze matrix. When paired with matching oil-free leader pins, they create a completely maintenance-free guidance system with zero contamination risk. Required for FDA-regulated food packaging molds, ISO Class 7+ cleanroom production, and medical device manufacturing.
Application Scenarios
FDA Food-Contact Molds
Food packaging molds must comply with FDA 21 CFR 177 — any lubricant migration to product surfaces violates regulations.
Why it fits: Oil-free bushings eliminate all lubricant from the mold guidance system, making FDA compliance automatic.
ISO 13485 Medical Device Molds
Medical device molds require validated cleaning processes if lubricants are present — adding cost and compliance burden.
Why it fits: No lubricant = no cleaning validation needed. Oil-free bushings simplify ISO 13485 compliance.
Frequently Asked Questions
What self-lubricating materials are used in oil-free leader bushings?+
Are oil-free bushings suitable for high-temperature molds?+
What is the expected service life of oil-free leader bushings?+
Engineering Resources
Need Custom Oil-Free Leader Bushings?
Precision oil-free leader bushings manufactured to JIS and DIN standards. Custom dimensions available. MOQ 1 piece.