GB/T 971-2008 in English
VALIDThread rolling cylindrical dies
- Issued on:2008-06-03
- Implemented on:2009-01-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$117.00
| Standard No: | GB/T 971-2008 |
| Document status: | VALID |
| Title in English: | Thread rolling cylindrical dies |
| Title in Chinese: | 滚丝轮 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2008-06-03 |
| Implemented on: | 2009-01-01 |
| Superseding: |
GB/T 971-1994 Thread rolling cylindrical dies
|
| ICS Classification: | 25.100.50-Taps and threading dies |
| Chinese Classification: | J41-Cutting tools |
| Professional Classification: | GB-National Standard |
| Related Keywords: | thread rolling wheels
cylindrical dies scopethis standard external threads tolerance grades thread |
| Related Topics: | gb/t971
jc/t 971 GB/T 971-2008 roll jt/t 971 GB/T 971 Rolling wheel JT T 971 Flat roller GBT971 GB/T971-1994 GB/T971-2008 Standard thread rolling wheel Thread rolling |
《GB/T 971-2008滚丝轮》由TC91（全国刀具标准化技术委员会）归口，主管部门为中国机械工业联合会。
Scope
This standard specifies the basic requirements for the type, size and deviation, technical requirements, marking and packaging of thread rolling wheels for ordinary threads. This standard applies to thread rolling wheels for processing ordinary threads (GB/T 192-193, GB/T 196-197). Thread rolling wheels are divided into three precision grades: 1st, 2nd and 3rd grades. Grade 1 is suitable for processing external threads with tolerance grades 4 and 5; grade 2 is suitable for processing external threads with tolerance grades 5 and 6; grade 3 is suitable for external threads with processing tolerance grades 6 and 7 .
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