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- Bush Straight type for Undr Water:SOBM
Bush Straight type for Undr Water:SOBM
Bush Straight type for Undr Water:SOBM
This document provides technical specifications for guide bushings made from metal sliding materials, specifically focusing on the RoHS SO#50SP2 model. The bushings are designed for use in underwater environments and are characterized by their oilless operation.
Specifications
- Material Composition: The base material is bronze with graphite (SP2) and solid lubricant (GR-9).
- Operation Range: Suitable for underwater use with no lubrication required. The maximum allowable load is 50 N/mm², sliding speed is 15 m/min, and PV value is 100 N/mm²·m/min. The operational temperature range is up to 80°C.
- Physical Properties: Specific gravity is 7.9 g/cm³, hardness is 210 HB or more, elongation is 12% or more, tensile strength is 755 N/mm² or more, and the linear expansion coefficient is 1.9 × 10−5/°C.
Dimensional Tolerances
The document provides detailed dimensional tolerances for various catalog numbers, including diameter and length specifications, with specific tolerances for press-fit applications.
Performance Characteristics
- These bushings perform well under high load and low-speed conditions.
- They are suitable for general use (d8 tolerance) and high load under water (b9 tolerance).
Additional Information
The bushings are registered under NETIS technology (Registration No.: KT-070008-A) and are classified as Oilless Bush Straight Type for underwater applications.
Catalog excerpts
GUIDE BUSHINGS Oilless Bush Straight Type For Under Water g(Entry area) Mating post tolerance d8 :General use b9 : High load under water Environment Condition Under water qOperation Range Lubricating Condition Material Base Bronze with Graphite(SP2) Solid lubricant(GR-9) NETIS registration technology (Registration No.: KT-070008-A) Lubricant Type Other operating conditions and characteristics · Can be used in under water. · Good performance in operation under high load and at low speed. Tolerance d after press-fit hd (tolerance) (Mating post) Max. Allowable Sliding Speed V Max. Allowable PV value Operation Range Temperature 2 ˚C m/min N/mm Ym/min qPhysical Properties Specific Gravity 3 g/cm Linear Expansion Coefficient ×10−5/˚C 1.9 Tolerance d after press-fit Metal Sliding Materials
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