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Lifting and rotating mechanism
Product name | Angular Contact Bearings with Housings - Back-to-Back Combination + Deep Groove Ball Bearing, Flanged Type |
---|---|
Part number | ABGC7004-N-80 |
Features | Angular Contact Bearings with Housings - Flanged type with Deep Groove Ball Bearings set in Back-to-Back Combination. |
To handle the changes in work piece weight as well as the durability issues a angular contact bearing is used.
■Angular Contact Bearings with Housings - Back-to-Back Combination + Deep Groove Ball Bearing, Flanged Type
(1) Angular Contact Bearings | (3) Holder, (4) Inner Ring Spacer, (5) Standard Cover, (6) Standard Cover, Oil Seal Cover, or O-Ring Cover, (7) Inner Ring Collar | (8) Cover Mounting Screw | ||
---|---|---|---|---|
(2) Deep Groove Ball Bearings | ||||
Material | Material | Surface Treatment | Material | Surface Treatment |
52100 Bearing Steel | 1045 Carbon Steel | Black Oxide | 4137 Alloy Steel | Black Oxide |
Electroless Nickel Plating | 304 Stainless Steel | - |
■Sizes and Dimensions
Bearing No. | Cover Selection | Overall Length | |
---|---|---|---|
7002 | Standard Oil Seal For O-Ring | 60 | 75 |
7003 | 70 | 85 | |
7004 | 80 | 100 | |
7005 | 100 | 125 | |
7006 | 120 | 150 | |
7007 | 140 | 175 | |
7008 | 160 | 200 | |
7009 | 180 | 225 | |
7010 | 200 | 250 |
Product name | Brackets for Device Stands and Tightening from Separate Side- Flanged |
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Part number | PFPM20 |
Features | Can be fastened from the back side. |
Select a reversed fastening type to firmly secure the shafts.
■Brackets for Device Stands and Tightening from Separate Side- Flanged
Type | Material | Surface Treatment |
---|---|---|
Flange Pilot Flanged | 1045 Carbon Steel | Black Oxide |
Electroless Nickel Plating | ||
304 Stainless Steel | - |
■Sizes and Dimensions
Stand Shaft Bore Dia. | Flange O.D. | Flange Wrench Flats | Overall Length | Post Mounting Screws |
---|---|---|---|---|
6 | 28 | 12 | 16 | M3 |
8 | 32 | 15 | 22 | M4 |
10 | 38 | 18 | 26 | M5 |
12 | 42 | 20 | 32 | M6 |
13 | ||||
15 | 48 | 32 | 40 | M8 |
16 | ||||
20 | 55 | 38 | 50 | M10 |
25 | 75 | 50 | 62 | M12 |
30 | 80 | 55 | 75 | M16 |
Product name | Flanged Linear Bushings - Center Flange |
---|---|
Part number | LHMRWMF20 |
Features | A load can be placed near the center of the linear bushing to evenly distribute the load and space. |
Select a center flanged type so that the plate moving up and down is positioned at the center of the bearing.
■Flanged Linear Bushings - Center Flange
Type | Outer Cylinder | Ball | Retainer | Operating Ambient Temperature | Accessory | ||
---|---|---|---|---|---|---|---|
Material | Hardness | Surface Treatment | Material | Material | |||
Round Flange Square Flange Compact Flange | 52100 Bearing Steel | 58HRC- | - | 52100 Bearing Steel | Plastic (Duracon M90 Equivalent) | -20-80℃ | Seal: Material Nitrile Rubber (-20 to 120°C) |
Stainless(SUS) | -20-100℃ | ||||||
Electroless Nickel Plating | 440C Stainless Steel | Plastic (Duracon M90 Equivalent) | -20-80℃ | ||||
Stainless Steel (SUS) | -20-100℃ | ||||||
440C Stainless Steel | 56HRC- | - | Plastic (Duracon M90 Equivalent) | -20-80℃ | |||
Stainless Steel (SUS) | -20-100℃ |
■Sizes and Dimensions
I.D. (mm) | Length (mm) |
---|---|
6 | 35 |
8 | 45 |
10 | 55 |
12 | 57 |
13 | 61 |
16 | 70 |
20 | 80 |
25 | 112 |
30 | 123 |
35 | 135 |
40 | 151 |
50 | 192 |
■Linear Bushing Selection Steps
↓
↓
↓
■Accuracy Info. of Flanged Linear Bushings
(mm)
I.D. | I.D. Tolerance | Overall Length Tolerance |
---|---|---|
6 | 0 -0.010 | ±0.3 |
8 | ||
10 | ||
12 | ||
13 | ||
16 | ||
20 | 0 -0.012 | |
25 | ||
30 | ||
35 | 0 -0.015 | |
40 | ||
50 |
■Speeds / Loads (Load Info.) of Flanged Linear Bushings
I.D. (mm) | Basic Load Rating | |
---|---|---|
Basic Dynamic Load Rating (N) | Basic Static Load Rating (N) | |
6 | 324 | 529 |
8 | 431 | 784 |
10 | 588 | 1100 |
12 | 657 | 1200 |
13 | 813 | 1570 |
16 | 1230 | 2350 |
20 | 1400 | 2740 |
25 | 1560 | 3140 |
30 | 2490 | 5490 |
35 | 2650 | 6270 |
40 | 3430 | 8040 |
50 | 6080 | 15900 |
■Life of Flanged Linear Bushings
When the linear system is loaded in linear reciprocating motion, scaly damages called flaking appear due to material fatigue as the repeated stress is applied on the rolling elements and the rolling contact surfaces constantly. Total travel distance until the first flaking occurs is called the life of linear system.
Rated life can be calculated with the basic dynamic load rating and the actual load applied on the linear bushings, as shown below.
Hardness Factor (fH)
For liner system applications, sufficient hardness is required for ball contact shafts. Inappropriate hardness causes less allowable load, resulting in shorter life.
Fig. 1. Hardness Factor
Temperature Factor (fT)
When the temperature of linear system exceeds 100°C, the hardness of the system and shafts will be reduced and the allowable loads will also be reduced compared to being used at room temperature, resulting in a shorter life.
Fig. 2. Temperature Factor
Contact Factor (fC)
More than two linear systems are used for one shaft in general. In this case, the load applied to each linear system varies depending on machining precision and is not uniformly distributed. As a result, allowable load per linear system changes depending on the number of linear systems used on one shaft.
Table-3. Contact Factor
Number of Bearings Installed on One Shaft | Contact Factor fC | |
---|---|---|
1 | 1 | |
2 | 0.81 | |
3 | 0.72 | |
4 | 0.66 | |
5 | 0.61 |
Load Factor (fW)
To calculate load applied to the linear system, in addition to object weight, it requires inertia force attributed to motion velocity or moment loads. Further, it is necessary to accurately determine the temporal change of each. However, it is difficult to calculation the load accurately due to potential vibrations and shocks caused by other element than repeated start-stop motions during reciprocating motion. Therefore, use the table below in order to simplify the life calculations.
Conditions of Use | fw |
---|---|
No shocks / vibrations, low speed: 15m/min. or less | 1.0~1.5 |
No significant shocks / vibrations, medium speed: 60m/min. or less | 1.5~2.0 |
With shocks / vibrations, high speed: 60m/min. or more | 2.0~3.5 |
Life in hours can be obtained by calculating the travel distance per hour. When the stroke length and the number of strokes are constant, it can be calculated using the formula below.
A mechanism which lifts the cylinder and rotates using a reversible motor is placed underneath the stage to save space.
By mounting a work piece receiving plate just above the driven side of the pulley, and held with a double rowed angular contact bearing, the work piece weight against the motor and accuracy are improved.
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* The part in the frame is a sub-assembly unit.
MISUMI Vietnam Company Limited, Legal Representative: Tomohiro Watanabe,
phone: 0222-361-1555, e-mail: cs@misumi.com.vn, Enterprise Code: 0107514576,
Date of Issuance: 22 July 2016, Place of Issuance: Bac Ninh, Business Certificate No. 6573041568-KD dated 27 September 2016 issued by the People's Committee of Bac Ninh
Công ty TNHH MISUMI Việt Nam, Đại diện theo pháp luật: Tomohiro Watanabe,
Điện thoại: 0222-361-1555, e-mail: cs@misumi.com.vn, Mã số doanh nghiệp: 0107514576,
ngày cấp 22/7/2016, nơi cấp: Bắc Ninh, Giấy phép kinh doanh số: 6573041568-KD ngày cấp 27/9/2016 bởi UBND tỉnh Bắc Ninh
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