Product Introduction
750W Air Compressor Crankshaft 7.5
7.5 Crankshaft for 750W Air Compressor Repair
The Norsun Air Compressor Crankshaft 7.5 is a replacement eccentric crank component specified for compatible 750W air compressor pumps. The supplied product information identifies a 14mm motor-shaft installation hole and a 7.5 product reference. The supplied Excel measurement sheet identifies the current large-power measured crank as a circular counterweight with a Φ74.0mm outside diameter, 23.0mm total height, a Φ35.0mm bearing-seat diameter and a 13.0mm bearing-seat height.
The crankshaft transfers rotary motion within the compressor pump and works with the connecting-rod and bearing assembly. For repair workshops, agricultural machinery service teams, importers and aftermarket distributors, correct crank-hole and bearing-seat matching is an essential part of replacement selection. Buyers should compare the original crankshaft, motor-shaft hole, bearing-seat diameter, connecting-rod head, total height and target pump model before ordering.
The supplied measurement data also references a Φ14.0mm motor-shaft hole, M8 coarse-thread top fastener, 4mm No. 4 hex-key installation and 6007 bearing compatibility. The table lists the main material as "Cast Iron / Carbon Steel"; the final material for the current product should be confirmed against a controlled drawing or material record.


Technical Profiles & Materials
1. Material Reference
The supplied Excel data records the main material as Cast Iron / Carbon Steel. Because two material descriptions are shown, the final material grade and material certificate remain to be verified for the current product batch.
2. 14mm Motor-Shaft Installation Hole
The motor-shaft installation hole is listed as Φ14.0mm. This dimension should be checked against the motor output shaft, fastening arrangement and original crankshaft before installation.
3. Measured Large-Power Crank Dimensions
The supplied measurement sheet lists a Φ74.0mm outside diameter, 23.0mm total height, Φ35.0mm bearing-seat diameter, 13.0mm bearing-seat height and 10.0mm base-plate thickness. The eccentric-distance value for the current 7.5 product remains to be verified.
Technical Specifications
| ITEM | DETAILS |
| Type | Air Compressor Crankshaft 7.5 / Eccentric Crank |
| Application | Compatible 750W air compressor pumps |
| Code | 1401641 |
| Material | Cast Iron |
| Details explanation | Circular crankshaft with Φ74.0mm outside diameter, Φ14.0mm motor-shaft hole, Φ35.0mm bearing seat and 6007 bearing reference |
| Brand Name | SeaSummer |
| Operating Temp | 60°C to 90°C |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application

750W Air Compressor Pump Repair
This 7.5 crankshaft can be evaluated as a replacement component for compatible 750W air compressor pump assemblies. Before installation, the technician should compare the Φ14.0mm motor-shaft hole, Φ74.0mm outside diameter, 23.0mm total height, Φ35.0mm bearing-seat diameter and M8 fastening interface.

Bearing and Connecting-Rod Replacement
The crank can be reviewed together with the bearing and connecting-rod assembly when the original component shows wear, looseness or incorrect crank movement. The supplied data references 6007, 6007-2RS and 6007-RZ bearings, with a 35mm inside diameter, 62mm outside diameter and 14mm width for the 6007 standard reference. The final bearing selection should be confirmed for the target pump.

Agricultural Machinery Service Support
Agricultural machinery service teams and aftermarket distributors may evaluate this crankshaft for compatible 750W compressor pumps used in equipment maintenance. The original part should be photographed and measured before ordering, especially the motor-shaft hole, bearing-seat diameter, connecting-rod head diameter, total height and fastener position.
Quality and Craftsmanship Details



Products Package

About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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FAQ
Q: What product is this?
A:It is a 750W Air Compressor Crankshaft 7.5 for compatible air compressor pump assemblies.
Q: What are the main measured dimensions?
A: The supplied Excel data lists Φ74.0mm outside diameter, 23.0mm total height, Φ35.0mm bearing-seat diameter, 13.0mm bearing-seat height and 10.0mm base-plate thickness.
Q: What is the material?
A: The supplied parameter information identifies the main body material as cast iron.
Q:Which bearings are referenced?
A:The supplied data references 6007, 6007-2RS and 6007-RZ. Confirm the final bearing selection for the target pump.
Q: Can you provide bulk supply?
A: MOQ, packaging, lead time and repeat-order terms should be confirmed for the requested quantity and destination.
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