Oil Free Bushing Housing Units - Standard Flanged - Standard - Built-In Copper Alloy Bushings, Single / Double
:
MISUMI
Suitable for vertical use. Reduces the time of manufacturing and assembling the housing.
● Single
● Double
● Long
● Details with dust seal Round flanged Square flangeCompact flanged = 6 to 13d = 16 to 50[ ! ] F8 shaft is recommended for with dust seals
[ ! ] Perpendicularity of flange bottom plane to surface D is 0.02 or less
When D ≤ 28, -0.1
−0.3
When D ≥ 32, -0.3
−0.5
Recommended Mating Shaft
Single·····f8 or g6 (Except -DS)
Double, Long··f8
[ ! ] Operating temperature: -40 to 150°C
-DS only: -25 to 100°C
| Housing Type | Type | Seal | Seals | Housing | Bushing | |||
| Round Flange | Square Flange | Compact Flange | [M] Material | [M] Material | [S] Surface treatment | [M] Material | ||
| Single | MFMS | MFKS | MFNS | No Seal | — | SS400 | Electroless Nickel Plating | High Tensile Brass Alloy |
| MFMS−S | MFKS−S | MFNS−S | With Non-contact Seals | Fluororesin | ||||
| MFMS−DS | MFKS−DS | MFNS−DS | With Dust Seals | Nitrile Rubber | ||||
| Double | MFMW | MFKW | MFNW | No Seal | — | |||
| MFMW−S | MFKW−S | MFNW−S | With Non-contact Seals | Fluororesin | ||||
| MFMW−DS | MFKW−DS | MFNW−DS | With Dust Seals | Nitrile Rubber | ||||
| Long | MFML | MFKL | — | No Seal | — | |||
| MFML−S | MFKL−S | — | With Non-contact Seals | Fluororesin | ||||
Specifications/Overview
■Features of dust seal type and non-contact seal type
·Dust seal type has built-in contact seals which prevent small dust from entering sliding contact surface.
·For sliding resistance of dust seal type, refer to sliding resistance test data.
·Non-contact seal type prevents large size dust entry.
Clearance between shafts and bushings (approximately 0.1 mm) lowers the sliding resistance than dust seal type.
·Dust seal type has built-in contact seals which prevent small dust from entering sliding contact surface.
·For sliding resistance of dust seal type, refer to sliding resistance test data.
·Non-contact seal type prevents large size dust entry.
Clearance between shafts and bushings (approximately 0.1 mm) lowers the sliding resistance than dust seal type.
■Dust seals sliding resistance test
[ ! ] Values are for reference only.
| d | Sliding resistance (N) | Dust Seal |
| 10 | 4 | SER－10 |
| 12 | 6 | SER－12 |
| 16 | SER－16 | |
| 20 | 7 | SER－20 |
| 25 | 8 | SER－25 |
| 30 | 9 | SER－30 |
| 40 | 10 | SER－40 |
■Testing conditions
1. Testing instrument: Push-Pull Gauge
2. Bushing: copper alloy
3. Shaft: MISUMI's f8 shaft
■Testing method
Measured the load when the shaft started to move.
* Velocity 1 mm/s approximately
