This standard specifies the shaft end dimensions and tolerances that affect interchangeability. This standard applies to hand-controlled electronic components used in telecommunications equipment and electronic equipment using similar technologies. These electronic components mainly include potentiometers, switches and variable capacitors. The shaft end type and nominal dimensions of shafts made of non-metallic materials shall comply with the provisions of this standard, and their tolerances shall comply with the provisions of relevant standards. All dimensions are after surface coating. GB/T 2775-1993 Shaft end dimensions of hand-controlled electronic components GB/T2775-1993 Standard download decompression password: www.bzxz.net

UDC 621. 38 233. 1
National Standard of the People's Republic of China
GB/T 2775
Dimensions of spendle ends for manually operated electronic components
Published on 18 March 1993
Implemented on 1993-0B-01
Published by the State Administration of Technical Supervision
National Standard of the People's Republic of China
Dimensions of spendle ends for manually operated electronic components The automobile standard adopts the IECa90A manual control component shaft end dimensions, 1% of the content and applicable scope. This standard specifies the shaft end dimensions and tolerances of the interchangeable shaft ends. CB/T2775-93 This standard is applicable to the manual control electronic components used in telecommunication equipment and other electronic equipment using similar technologies. These electronic components mainly include positioners, switches and variable capacitors. The shaft end type and nominal size of the shaft made of non-metallic materials shall comply with the provisions of this standard, and the other specifications shall comply with the provisions of relevant standards. The existing dimensions are the dimensions after the surface. 2 Shaft types and sizes
The external structures of the shaft are as follows: smooth shaft end see country 1, table 1 F bZxz.net
single plane shaft end see figure 2, table 2
shaft end with implant see figure 3, table 3 I
hollow shaft end see figure 4, table 4
double plane shaft end with screw hole see figure 5, table 5
single plane concentric shaft end see figure 6, table 6;
concentric shaft end see country 7, table 7?
For toothed ends, see Figure 8 and Table 81.
For toothed shafts with tooth shapes, see Figure S and Table 9.
Approved by the State Bureau of Technical Supervision on March 18, 1993 and implemented on August 1, 1993
2-& cas
3-H ras
10-10x
G/T2775-93
National 1 Guangzhou shaft end
, 4--E0 angle input depth is the smaller of the shaft diameter--05, the inner size is for quick retention size, new design is not adopted, 32
G3(G0)
If a value is required, it should be preferentially selected from the 2 series, and the length of the high-speed electric device can be a public welfare. 3
9-1 es
10-10+
16120125
GB/T 2775~93
Pressure 2 single plane shaft porridge
From nun An
2TMTM when increased selection
Note: (1)) that is, the angle +0~50\ or the axial limit of the angle is 5%~-105% of the shaft diameter, ② the bracket method size is the guaranteed size and is not used in new designs. 1) If you want to guarantee the time, choose the best one from R20 Dongxi, and for high version, you can also reduce the length by 2. um, 2 or single green energy, you may need to change the size of the push-type running gear to obtain the required circulation force. The standard size is indicated in the component specification.
Diameter D
GB/T2775-93
Figure 3 Book shaft rubbing
± 5, 5
Note: The angle 40-30 or the shaft depth is 5%--10% of the shaft diameter. The dimensions in brackets are guaranteed dimensions. If 1 is used for the new section, the middle position should be taken first. 46
An is the middle
2. 4±0.1
1.9±0, upper
1. 2± 1. 2
2. C-- 3 3
3. ( 3. 2
GB/T 21/5 93
Figure 4 Hollow shaft end
Note: i> Use 40E0 or because the axial depth is 5~10% of the diameter. The following size is reserved for design.
1) Single value, should be selected from R26 Le engraving 2 size and optional
not used
from 4mm press
2mm fan spring pressure
GA/T 2775 - 93
Medical 5 double flat Li with explosion hole cat end
25 ± 0. 5
Properties: All dimensions are for installation except the dimensions on the right, ② The dimensions in brackets are reserved dimensions, not used in new designs, (st ..)
3. 2-1.a1
Through the angle 4--50 or the figure standard depth as the axis of the 5111 transformer shaft length 1 can be 6 (5mm, 21 table mir can be class light the entire length is with a flat, 4.
M2.5xc.45
M2.iXo.45
Blood whole 5
GB/T 2775 - 93
Medical 6 single flat concentric shaft end
162n25324050
Not applicable
Note: ① Side angle 4~5 or fillet axial rate is 5~10% of shaft diameter size, Zhe is the reserved size, new design center to use, flat size S and above, according to the table can be selected, 1) If you need an intermediate value, the variable element to K20 special selection, diameter Jing spiral Hong
quality determination
Not applicable
Dense surface
Analysis of simple film
fixed formula can
not selected
.+n or m
1+12.52mn
tolerance 0.0 select
6-R rr
12.5±0. 5
GB/T2775-93
Figure? With concentric axis chrysanthemum
male swallow ±1.0
sexuality, (1 net 40°0 take round electric temporary guarantee accuracy of 5% of the full diameter ~ 11 If you need mother-to-child resources, you should give priority to selecting from the R0 series 6
(19±0.5)
(12±0.5)
(10±0.5)
GB/T 2775-93
Shop rules
Figure B toothed shaft coupon
Use .5 continent
Note, (use 40 ° -50 * or Figure angle object detection angle is 5% ~ 10% of the diameter size four brackets inner protection, new design is not used,
1>If the middle adjustment is required, it should be selected from the R20 series, mm
4D ± 1. Center
GB/T2775-93
S belt sugar toothed shaft end
Shaft glass Size
4 gold limit
: () Angle 40* or fillet axial depth is 6% to 70% of the diameter size, ② Guide the inner size to keep as much as possible, new design does not adopt the month, 1) If the middle one is adopted, it should be selected from the R20 scene series first, additional notes:
This standard is proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China. This standard is funded by the Electronic Standardization Institute of the Ministry of Machinery and Electronics Industry. The main drafters of the standard in 2017 were Chen Yongli, Wu Fanlin, Chou Changfu, Qiang Landai, and Rouss
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