|
US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 34896-2017: Rotary shaft lip-type seals -- Determination of friction torque
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 34896-2017 | English | 139 |
Add to Cart
|
3 days [Need to translate]
|
Rotary shaft lip-type seals -- Determination of friction torque
| Valid |
GB/T 34896-2017
|
PDF similar to GB/T 34896-2017
Basic data | Standard ID | GB/T 34896-2017 (GB/T34896-2017) | | Description (Translated English) | Rotary shaft lip-type seals -- Determination of friction torque | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J20 | | Classification of International Standard | 23.100.60; 83.140.50 | | Word Count Estimation | 7,768 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-05-01 | | Regulation (derived from) | National Standard Announcement 2017 No. 29 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 34896-2017: Rotary shaft lip-type seals -- Determination of friction torque---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Rotary shaft lip-type seals-Determination of friction torque
ICS 23.100.60; 83.140.50
J20
National Standards of People's Republic of China
Rotary shaft lip seals - Determination of friction torque
Posted.2017-11-01
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the China Machinery Industry Federation.
This standard by the National Hydraulic Pneumatic Standardization Technical Committee (SAC/TC3) centralized.
This standard was drafted unit. Chengdu Sheng Bang Sealing Co., Ltd., Northwest Rubber and Plastic Research Institute Co., Ltd., Qingdao Beihai Mi
Feng Technology Co., Ltd., Anhui Zhongding Seal Co., Ltd., Guangdong Tiancheng Sealing Co., Ltd., Jiangsu Pearl test machinery have
Limited, Pan Hydraulic Industry (Anhui) Co., Ltd., Qingdao Seiki Seal Industry Co., Ltd., Chongqing Duke High Pressure Seals Co., Ltd.
The main drafters of this standard. Liu Yueyun, Gao Jingru, Wu Yongzeng, Zhang Haichao, Chen Jinyang, Huang Tongmei, Zhu Muzhi, Huang Guowei, Gao Jianming,
Yin Jianxin, Wang Lin, Du Changchun, Huang Shaobo, Tao Su Bin.
Rotary shaft lip seals - Determination of friction torque
1 Scope
This standard specifies the method of determination of the friction torque of rotating shaft lip seals.
This standard applies to the determination of rotating shaft lip seals (hereinafter referred to as the ring) friction torque.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 13871.2 Rotary shaft lip seals with elastomeric body sealing element Part 2. Glossary
GB/T 13871.4-2007 Rotating shaft lip seals with elastomeric body as sealing element - Part 4. Performance test procedure
GB/T 21283.2 Rotary shaft lip seals with thermoplastic sealing element Part 2. Glossary
HG/T 2069 rotary shaft lip seals two semi-axial radial force measuring instrument
3 Terms and definitions
GB/T 13871.2 and GB/T 21283.2 defined terms and definitions apply to this document.
4 test equipment
4.1 friction torque test equipment should be adjustable eccentric cavity, rotating parts and torque sensors, Figure 1 is a typical test equipment
Schematic.
4.2 Torque sensor accuracy of not less than ± 0.5% FSR; other parts should be consistent with GB/T 13871.4-2007 of the 5.1 requirements.
Note .FSR is an abbreviation for Ful-ScaleRange, ie full scale range.
5 sample
Seal sample not less than 3 pieces.
6 before the test
The following data should be measured before testing.
a) the outer diameter of the sample size and roundness;
b) the main lip diameter of the specimen;
c) the diameter of the vice of the specimen (if any);
d) the main lip radial force of the test specimen according to HG/T 2069;
e) the inner diameter of the cavity of the sealing ring and the surface roughness;
f) Test shaft diameter, surface roughness and surface hardness.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 34896-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 34896-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 34896-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 34896-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|