PT..RK Series
Product type
Relubricable bushings
DJA MOND - Precision Lubrication, Maximum Performance
Four solutions for every operating condition, from heavy-duty loads to high-speed automotive applications.
Relubricable bushings are plain bearings that require initial or periodic lubrication with grease or oil to achieve higher load capacity and greater resistance than self-lubricating solutions. DJA MOND relubricable bushings, also referred to as grease-lubricated bushings or bushings with grease fittings, are designed for applications where high load capacity, shock and vibration resistance, and reliable performance in dirty or demanding environments are essential. This range of bushings is intended for operating conditions where the required performance benefits justify a lubrication plan, even with minimal maintenance requirements.
Relubricable bushings are plain bearings that require initial or periodic lubrication with grease or oil to achieve higher load capacity and greater resistance than self-lubricating solutions. DJA MOND relubricable bushings, also referred to as grease-lubricated bushings or bushings with grease fittings, are designed for applications where high load capacity, shock and vibration resistance, and reliable performance in dirty or demanding environments are essential. This range of bushings is intended for operating conditions where the required performance benefits justify a lubrication plan, even with minimal maintenance requirements.
Find the product
Four types for every lubrication requirement
The four types in this range differ in structure, material and relubrication interval, with each version optimized for different application requirements. POM/PEEK multilayer bushings (PT..RK) require only minimal initial lubrication and operate at high speeds with reduced running clearance. Case-hardened bushings (BAC) provide maximum resistance to wear and seizure, with relubrication intervals of up to 550 hours. Rolled bronze bushings (PB..AR/FP) are ideal for dirty environments with shock loads and vibrations, offering thin-wall design and minimal overall dimensions. Steel/bronze bimetallic bushings (BJ..) manufactured according to ISO 3547 withstand high sliding speeds and temperatures up to 260°C, typical of automotive applications.
BAC.. Series
DJA MOND Case-hardened bushings
Bushings manufactured from case-hardened steel and subjected to quenching and tempering treatments, with a case-hardening depth of 0.8–1 mm and a surface hardness of HRC 58–62 after final grinding. They offer excellent…
PB..AR/FP SERIES
DJA MOND wrapped bronze bushings
Thin-wall tin bronze (CuSn8) bushings featuring rhombic lubricant pockets (AR), through holes (FP) or solid lubricant pockets (ARG) for lubricant retention and storage. Available also with lubrication holes designed for grease accumulation…
BJ.. SERIES
DJA MOND bimetallic bushings
Three-layer bimetallic bushings featuring a sintered bronze powder sliding layer, a steel backing providing high load capacity and excellent heat dissipation, and copper plating for corrosion protection. They are designed for high…TECHNICAL COMPARISON
Which relubricable bushing for each application
Comparison of bushing types and lubrication requirements. For specific sizing needs, the JFK technical team is available for direct support.
| Type | Features and use |
|---|---|
| PT..RK, POM/PEEK multilayer | High loads, including shock loads; minimal initial lubrication. |
| BAC, Case-hardened | Relubrication up to 550 h |
| PB..AR/FP, Bronze wrapped | High load capacity for the same space requirements; continuous or periodic lubrication. |
| BJ, Bimetallic | C0 load capacity up to 120 N/mm²; periodic lubrication. |
SELECTION GUIDE
Start by identifying the operating conditions
Near-zero maintenance with high performance
Only initial greasing required, with no periodic relubrication. High sliding speed capability, reduced running clearance and suitable for shock loads. Maximum resistance to wear and seizure
Case-hardening treatment with surface hardness HRC 58–62 and a tough core. Relubrication intervals up to 550 hours, even in demanding industrial applications. Minimal installation space and easy lubrication
Thin-wall bushings designed to minimize installation space while maintaining the same load capacity. Lubricant pockets or through holes ensure lubricant storage, making them ideal for agricultural, construction and lifting equipment. High load capacity and heat dissipation
ISO 3547-compliant bimetallic structure with operating temperatures up to 260°C. The preferred solution for engines, pumps, compressors and gearboxes in automotive and industrial applications.Contacts
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