Oil Free Bushing Housing Units - Standard Flanged, Built-In Copper Alloy Bushings, Single / Double

Brand :

MISUMI

Caution

Product Description

- Oil Free Bushing Housing Units - Standard Flanged.
- Housing Type: Single / Double
- Outer Diameter: 12, 15, 19, 21, 23, 28, 32, 40, 45, 52, 60 and 80.
- Housing Material: SS400.
- Housing Surface Treatment: Electroless Nickel Plating
- Bushing Material: High Tensile Brass Alloy Solid Lubricant Embedded
- Seal type: No Seal, With Dust Seals and With Non-Contact Seals
- Seals: NBR Nitrile Rubber (O-Ring) and Teflon Resin
- Suitable for vertical use and 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

* Housing Relief

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
Housing Type	Round Flange	Square Flange	Compact Flange	Seal	[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	—
Long	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 seals sliding resistance test

d	Sliding resistance (N)	Dust Seal
10	4	SER－10
12	6	SER－12
16	6	SER－16
20	7	SER－20
25	8	SER－25
30	9	SER－30
40	10	SER－40

[ ! ] Values are for reference only.

■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