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KS P14

Product catalog summary

Brief Description of the Sliding Material:
KS P14 is a lead-free steel/plastics composite material designed for maintenance-free applications, suitable for both dry and liquid-lubricated systems. It is produced using a continuous sinter impregnation method, resulting in a low coefficient of friction and favorable wear properties. The material complies with EU Directive 2000/53/EC on End-of-Life Vehicles.

Bearing Structure:
The sliding elements consist of a steel back, a porous tin-bronze layer, and a solid lubricant PTFE with ZnS as filler. The steel carrier is typically grade DC04 with a hardness of 100 to 180 HB and thickness between 0.7 and 3.2 mm. The bronze layer has a pore volume of about 30% and is coated with a solid lubricant run-in coat.

Tribological System Bearing/Shaft in Dry Run:
Factors such as load, sliding speed, ambient temperature, and shaft material significantly influence wear. The shaft's surface roughness should be Rz 1–3 for optimal performance.

Characteristics and Limit Loads:
Key parameters include a maximum pv value of 1.8 N/mm²·m/s, permissible specific bearing loads of 250 N/mm² (static), 140 N/mm² (very low sliding speed), and 56 N/mm² (oscillating, vibrating). The permissible sliding speed is 2 m/s for dry runs and 3 m/s for wet runs, with a temperature range of -200 to +280°C.

Manufacture of the Sliding Material:
The solid lubricant is mixed and applied to the bronze-sintered steel through a series of thermal processes to achieve the desired tribological characteristics and thickness accuracy.

Plain Bearing Manufacture:
KS P14 sliding elements are produced through cutting, punching, and forming, with corrosion protection treatments applied as needed.

Quality Assurance:
The manufacturing process is closely monitored with quality assurance measures to ensure product reliability.

Application:
KS P14 is suitable for a wide range of applications in both dry and liquid-lubricated systems, with conditional use of grease as a lubricant.

Test Conditions and Results:
Tests conducted under specific conditions (e.g., sliding speed of 0.42 m/s, specific load of 2 N/mm²) showed varying wear and lifetime factors depending on shaft material and hardness.

Disclaimer:
KS Gleitlager GmbH does not assume liability for the completeness of the data and emphasizes that the information does not constitute a legal guarantee.

Catalog excerpts

Kolbenschmidt Pierburg Group KS P14 Lead-free Steel/Plastics Composite

Open the catalog to page 1

Brief description of the sliding material KS P14 is a lead-free steel/plastics composite material for applications not requiring maintenance (dry run). Its use in liquid-lubricated systems is also viable. Grease is only recommended conditionally as a lubricant in contact with KS P14. The material is produced by applying a continuous sinter impregnation method. In a purpose-adapted process, the sliding surface of bronze is sintered onto a steel carrier material, leaving a mean pore volume of about 30 %. A solid lubricant mass is impregnated into these hollows and submitted to thermal treatment. KS...

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Manufacture of the sliding material Chemical composition of the solid lubricant ZnS Lifetime factor The solid lubricant mass is produced in a purpose-adapted mixing process. In parallel, bronze powder is pore-sintered onto steel in a continuous sintering process. Subsequently, impregnating rollers will feed and apply the solid lubricant. In a series of thermal process steps, the characteristic features of the integral tribological system are adjusted and then the necessary thickness accuracy of the composite is accomplished by means of controlled roller pairs. Minor alterations of the contact...

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KS Gleitlager GmbH · Am Bahnhof 14 · 68789 St. Leon-Rot · GERMANY Tel. +49 6227 56-0 · Fax +49 6227 56-302 · www.kspg.com KS Gleitlager GmbH does not assume any liability for the completeness of the data presented in this materials brochure. It is exclusively up to the customer to form his opinion about the characteristics of the material and its adequacy for the purposes intended by the customer. KS Gleitlager GmbH would also like to stress that any information given in this materials brochure does not constitute a legal guarantee for the appearance, characteristics and workmanship nor does...

Open the catalog to page 4

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