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SMA-L Linear Bearing Pillow Block
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ISUTAMI BEARINGS

SMA-L Linear Bearing Pillow Block

SMA-L Linear Bearing Pillow Block
ISUTAMI SMA-L long linear bearing pillow block, also known as SMA-L extended linear bearing unit, SMA-L extended linear slide unit or SMA-L extended linear case housing (unit), is a suitable product for Asian market. L is an abbreviation for long. This model consists of a long aluminum housing with 4 fixing holes and two matching LM standard linear bearings. There is an oil filling hole on the unit side and a circlip on each end in the proper position. There are also two rubber seals (UU) at both ends of the linear bearing, to prevent debris or ball bearing contamination. The aluminum casing is used because it is small and lightweight and has a strong corrosion resistance.
SMA-L Linear Bearing Pillow Block
ISUTAMI SMA-L long linear bearing pillow block, also known as SMA-L extended linear bearing unit, SMA-L extended linear slide unit or SMA-L extended linear case housing (unit), is a suitable product for Asian market. L is an abbreviation for long. This model consists of a long aluminum housing with 4 fixing holes and two matching LM standard linear bearings. There is an oil filling hole on the unit side and a circlip on each end in the proper position. There are also two rubber seals (UU) at both ends of the linear bearing, to prevent debris or ball bearing contamination. The aluminum casing is used because it is small and lightweight and has a strong corrosion resistance.

SMA-L Linear Bearing Pillow Block Size Chart

SMA-L Linear Bearing Pillow Block

Bearing No. Shaft
Diameter
Main Dimensions Mounting Dimensions Weight
(Kg)
H E W L F G T B C K S1 S2 l
SMA8L 8 11 17 34 58 22 18 6 24 42 5 M4 3.4 8 0.10
SMA10L 10 13 20 40 68 26 21 8 28 46 6 M5 4.3 12 0.18
SMA12L 12 15 21 42 70 28 24 8 30.5 50 5.75 M5 4.3 12 0.20
SMA13L 13(12) 15 22 44 75 30 24.5 8 33 50 5.5 M5 4.3 12 0.23
SMA16L 16 19 25 50 85 38.5 32.5 9 36 60 7 M5 4.3 12 0.39
SMA20L 20 21 27 54 96 41 35 11 40 70 7 M6 5.2 12 0.49
SMA25L 25 26 38 76 130 51.5 42 12 54 100 11 M8 7 18 1.17
SMA30L 30 30 39 78 140 59.5 49 15 58 110 10 M8 7 18 1.43
SMA35L 35 34 45 90 155 68 54 18 70 120 10 M8 7 18 2.13
SMA40L 40 40 51 102 175 78 62 20 80 140 11 M10 8.7 25 3.09
SMA50L 50 52 61 122 215 102 80 25 100 160 11 M10 8.7 25 6.53
Remarks: SMA-L use the LM series bearing.

SMA-L Linear Bearing Pillow Block Features

The SMA-L linear bearing pillow block is a closed, double-length Asian metric version. Two LM standard linear bearings are mounted in the housing and arranged in a straight line inside the aluminum housing. Advantages of the bearing bushing include less tilt or friction, less wear over time, and better machining results.

If you are manufacturing CNC milling machines, milling machines or lathes that require precise linear motion, it is a perfect solution to install this long type aluminum housing with LM standard linear bearings. Aluminum housing size range: length (L) ranges 58-215mm (matching LM standard linear bearing length (L) ranges 17-100mm); width (W) ranges 34-122mm; height (F) ranges 22-102mm; minimum combined size of the item SMA8L is 58*34*22mm, and the largest combined size SMA50L is 215*122*102mm. These data are basically the same as those of the KBA-L long linear bearing pillow block. The aluminum housing has four CNC drilled holes, threaded holes and countersunk holes of the same size from M4 to M10, which can be easily and safely mounted to almost any machine.

A typical CNC system consists of a linear shaft with matching diameter ranging of 8-50 mm, mounted on both ends of the shaft by two end supports, and the bearing housing of the elongated linear bearing runs straight along the shaft. Most CNC machines and 3D printers have two such components mounted side-by-side, using a housing as a stand to support the mobile platform. This is a long unit able to be mounted from above or below, making it easy to incorporate into the intended system. Positioning and precision enhancements are facilitated with one of the side aspects serving as datum face. The extruded aluminum case has undergone sufficient post-extrusion heat treatment to create a compact, lightweight and precision item.

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