Wuxi Easony Machinery Co., Ltd.
Wuxi Easony Machinery Co., Ltd.
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The function of a bearing steel inner sleeve or inner bushing is to provide support and reduce friction between rotating components in machinery.
Support: The inner sleeve or inner bushing provides a stable surface for the shaft to rotate on. It helps distribute the load evenly along the length of the shaft, preventing excessive wear and deformation.
Reducing Friction: By providing a smooth, low-friction surface for the shaft to rotate against, the inner sleeve or inner bushing minimizes frictional forces. This helps improve efficiency and reduces energy consumption in the machinery.
Protection: The inner sleeve or bushing can act as a barrier between the shaft and other components, protecting the shaft from damage due to contact with abrasive materials, corrosive substances, or other environmental factors.
Overall, the bearing steel inner sleeve or inner bushing is a critical component in ensuring the smooth and reliable operation of rotating machinery. It helps extend the lifespan of the equipment and minimizes maintenance requirements.
Surface treatment:Plain finish,ZINC plated, color zinc or as your requirement
Application:Used in petroleum, chemical industry, aerospace, paper, automobile, packaging machinery,
decoration, railings and other engineering, hardware processing, ships, power plants and other industries.
| Subjection : Specificationsfor Raw Material of Sleeves (High Carbon - Chromium Bearing Steel Tubes) | |||||||||||
| 1. Specifications for Finish Tubes | |||||||||||
| Material : GCR15/SAE 52100/100CR6/SUJ2 or Its Equivalent | |||||||||||
| Reference: GB/T 18254; YB-T 4146; SKFD33; | |||||||||||
| S13000; JISG4805; ASTMA295; | |||||||||||
| A. Chemical Composition | |||||||||||
| C | Si | Mn | S | P | Cr | Al | O2 | H2 | N2 | Ti (ppm) | |
| (ppm) | (ppm) | (ppm) | |||||||||
| MIN. | 0.95 | 0.15 | - | - | - | 1.3 | - | - | - | ||
| MAX. | 1.1 | 0.35 | 0.5 | 0.025 | 0.025 | 1.6 | 0.05 | 15 | 1 | 100 | 30 |
| B.Microstructure | |||||||||||
| Spherodised Annealed, consist of uniformly distributed spheroidalcarbides in a matrix of ferrite and shall be free from excessive carbidesegregation. | |||||||||||
| C. Macro Etch Test | |||||||||||
| Billet sample taken in accordance with A295 shall be macro-etched and examined. | |||||||||||
| It should be free from pipe, porosity and injurious defects. | |||||||||||
| D. Non Metallic Inclusions : | |||||||||||
| According toA.S.T.M A 295 for through hardening bearing steel the inclusion rating shall beperformed using the recommended ASTM - E 45 Method -D and the rating shall notexceed the limits specified below: | |||||||||||
| A | B | C | D | ||||||||
| Thin | Heavy | Thin | Heavy | Thin | Heavy | Thin | Heavy | ||||
| 2.5 | 1.5 | 2 | 1 | 0.5 | 0.5 | 1 | 1 | ||||
| E. Decarb Layer: | |||||||||||
| Surfacedefects inclusive of decarburized depth not to exceed 0.25mm. | |||||||||||
| Total decarburized depth is defined as distancefrom the surface of decarburized layer to the position where the difference inchemical or physical properties between the decarburized layer & the | |||||||||||
| corematerial is no longer determinable. | |||||||||||
| F. Surface Quality : | |||||||||||
| Noscratch marks & cracks. The tubes shall be well finished and the outside& inside surfaces shall be free from injurious defects for practicaluse.All tubes shall be inspected for ultrasonic tests as per ASTM D213. | |||||||||||
| G. Manufacturing process : | |||||||||||
| Cold Drawn or Cold Pilgered. | |||||||||||
| H. Product Tolerance | |||||||||||
| Sr.No. | OD(mm) | Tube wall thickness | |||||||||
| (mm) | |||||||||||
| 1 | 0 | -0.0/+5% of WT | |||||||||
| I. Other specifications | |||||||||||
| Parameter | Specification | ||||||||||
| Hardness | 220 BHN max | ||||||||||
| Magnetism | Material will be free from magnetism. | ||||||||||
| Straightness | 1 mm per Meter on any running length | ||||||||||
| Length | 5.8m max. | ||||||||||
| Inspection | All tubes will be 100% inspected by PMI test or spark test to ensure to no mix-up of material. | ||||||||||
| Marking | Manufacturer’s mark & name, Grade, size, Heat Number, Year | ||||||||||
| & month of manufacture. | |||||||||||
| Coating | Rust preventive oil on outside & inside surfaces. | ||||||||||
Production Detection:
1. Complete testing facilities
2. Perfect measurement methods
3. Perfect production detection methods
4. Strong QC team,conduct comprehensive quality control
FAQ
Q1:who are we?
A:We are based in WUXI, China, start from 2016,sell to Asia(60.00%),Western Europe(14.00%),South
America(6.00%).
Q2. how can we guarantee quality?
A:Always a pre-production sample before mass production; Always final Inspection before shipment.
Q3.what can you buy from us?
A:Copper,Aluminum,Mould steel, Seamless carbon steel,Precision steel pipe,The steel plate,Alloy steel
Titanium,Custom machine parts.
Q4.why should you buy from us not from other suppliers?
A:Wuxi Easony Machinery Co., Ltd. has 8 years of production experience. With advanced precision
production equipment and modern large warehouses, has a stockpile of 200,000 tons of goods, has a number
of long-term stable cooperative customers.
Q5.what services can we provide?
A:Accepted Delivery Terms: FOB,CFR,CIF,EXW；Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,
HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,PayPal;Language Spoken:English,Chinese.
Q6.Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
Q7.How can we get your price ?
A:We need below information to quote for you:
1)Product Name
2)Standard
3)Material Grade (Chemical Composition)
4)Dimension
5)Quantity
6)The Drawing for Special Parts