产品名称：叶片泵轴芯VA27541 SHAFT-SQP21-*-86
产品型号：VA27541 SHAFT-SQP21-x-86
产品报价：3668
产品特点：叶片泵轴芯VA27541 SHAFT-SQP21-*-86是东京计器（TOKYO KEIKI / 原 TOKIMEC）SQP21 系列双联叶片泵专用的86 型重型轴芯（泵轴 / 驱动轴）。
VA27541 SHAFT-SQP21-x-86叶片泵轴芯VA27541 SHAFT-SQP21-*-86的详细资料：
一、型号与适配信息
备件号 (Part No.)：VA27541
型号标识：SHAFT-SQP21-*-86
适用泵系：SQP21 双联叶片泵（高压级 SQP2 + 低压级 SQP1）
轴型代码：86（代表重型平键轴，区别于标准 1 型轴）
适用排量
高压级 (SQP2): 10, 12, 14, 15, 17, 19, 21
低压级 (SQP1): 2, 3, 4, 5, 6, 7, 8, 9
确认匹配：泵铭牌型号中必须包含 -86- （如 SQP21-17-8-86AA-18）
东京计器TOKYOKEIKI叶片泵轴芯VA27541 SHAFT-SQP21-*-86
二、核心技术参数
材质：高强度合金结构钢（通常为 20CrMnTi 或 SCM415）
热处理：渗碳淬火 + 精磨
表面硬度：HRC 58-62
轴伸直径：25.4 mm (1 英寸)
键槽规格：8 mm (宽) x 7 mm (深) （重型平键）
总长：约 155 mm（因具体泵型号略有差异）
配合精度：轴颈公差 g6/h6，同轴度 ≤ 0.01 mm
最大承受扭矩：360 N·m
三、功能特点
重载专用：86 型为加强型设计，承载能力远超标准 1 型轴，专为高压、高扭矩工况设计。
高耐磨抗疲劳：深层硬化处理，抗弯曲、抗冲击、抗点蚀能力强，适合连续运转。
高精度低噪音：严格的形位公差控制，确保与转子、轴承的配合，降低振动与噪音。
原装互换：VA27541为原厂标准件号，可直接替换同规格损坏轴芯。
四、替换与采购提示
必检项目：更换时建议同步检查轴承、油封、泵芯内孔，确保配合面无磨损、拉伤。
替代选择：市场有国产替代轴（材质 40Cr/20CrMnTi），价格为原装的 1/3-1/2，需确认热处理与尺寸精度达标。
常见故障：轴颈磨损、键槽滚键、轴身弯曲、轴头断裂（多因过载或对中不良）。
东京计器TOKYOKEIKI叶片泵轴芯VA27541 SHAFT-SQP21-*-86
TOKYO KEIKI Vane Pump Shaft VA27541 SHAFT-SQP21-*-86
I. Model & Application Information
Applicable Displacements
High-pressure stage (SQP2): 10, 12, 14, 15, 17, 19, 21
Low-pressure stage (SQP1): 2, 3, 4, 5, 6, 7, 8, 9
Matching Confirmation
II. Core Technical Specifications
Material: High-strength alloy structural steel (normally 20CrMnTi or SCM415)
Heat Treatment: Carburizing and quenching + precision grinding
Surface Hardness: HRC 58–62
Shaft Extension Diameter: 25.4 mm (1 inch)
Keyway Dimensions: 8 mm (width) × 7 mm (depth) (heavy-duty flat key)
Overall Length: Approx. 155 mm (slight variations depending on specific pump model)
Fit Accuracy: Journal tolerance g6/h6, concentricity ≤ 0.01 mm
Maximum Allowable Torque: 360 N·m
III. Functional Features
Heavy-duty Design: Type 86 is a reinforced version with much higher load capacity than the standard Type 1 shaft, engineered for high-pressure and high-torque applications.
High Wear & Fatigue Resistance: Deep hardening treatment provides excellent bending resistance, impact resistance and pitting resistance, suitable for continuous operation.
High Precision & Low Noise: Strict geometric tolerance control ensures perfect matching with rotors and bearings, reducing vibration and noise.
Original Interchangeability: VA27541 is an original standard part number and can directly replace damaged shafts of the same specification.
IV. Replacement & Purchasing Notes
Mandatory Checks: During replacement, it is recommended to inspect bearings, oil seals and the pump core bore simultaneously to ensure no wear or scoring on mating surfaces.
Alternative Options: Domestic replacement shafts (material 40Cr/20CrMnTi) are available on the market at 1/3 to 1/2 of the original price; heat treatment and dimensional accuracy must be verified before use.
Common Failures: Journal wear, keyway rounding, shaft bending, shaft breakage (mostly caused by overload or poor alignment).
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