SLIDE BUSH
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SLIDE BUSH SLIDE BUSH C-1

SLIDE BUSH The NB slide bush is a linear motion mechanism utilizing the rotational motion of ball elements. Since linear motion is obtained using a simple mechanism, the slide bush can be used in a wide variety of applications, including transportation equipment, food processing equipment, and semiconductor manufacturing equipment. The outer cylinder of slide bush contains a ball retainer that is perfectly designed to control the circulation of ball elements, resulting in smooth linear motion. Compact Machanism The NB slide bush uses a round shaft for the guiding axis, resulting in...

flange type flange type with pilot end long flange type double wide flange type center mount flange type double-wide pilot end flange type SLIDE BUSH triple wide flange type ■X Outer cylinder is treated with electroless nickel plating |_ triple-wide intermediate position flange type _^op_tion Outer cylinder electroless nickel plating triple-wide pilot end flange type Outer cylinder electroless nickel Table C-4 Type (4) GM Series GM/GW single type

BLOCK SERIES This type is the most commonly used standard type. The housing is made of aluminum alloy. The wide (W) type is also available for SMA and AK types. Clearance-adjustment is achieved by creating a slit on the SMA/SWA type housing. Less clearance between block and shaft results in higher positioning accuracy by tightening the adjustment screw. The housing is made of ABS resin for light-weight and low-cost. Inside is an inch sized bush of a resin retainer type with seals. The housing has a self-aligning feature. This feature will absorb inaccuracy of the installation base so that a...

LIFE CALCULATION Since ball elements are used as the rolling element in the NB slide bush, the following equation is used to calculate the travel life. If the stroke distance and number of strokes per unit time are constant, the life time is calculated using L: rated life (km) fin: hardness coefficient fi: temperature coefficient fc: contact coefficient fw: applied load coefficient C: basic dynamic load rating (N) 'Refer to page Eng-5 for the coefficients. Lh: life time (hr) &s: stroke length (m) L: rated life (km) m: number of cycles per minute (cpm) LOAD RATING FOR OPEN TYPE SLIDE BUSH...

The normal clearance fit listed in Table C-9 is generally selected as a shaft outer diameter tolerance for the NB slide bush. The transition fit is selected for a higher accuracy by reducing clearance between slide bush and shaft. Matching bush and shaft (FIT series) is also available for customer's specified clearance. Please be cautious not to apply excess preloading with clearance adjustable and open types. Please keep pre- loading within the maximum radial clearance listed in the dimension table. The flange-type bush is generally inserted into an installation bore, which is slightly...

FELT SEAL The NB slide bush is a precision component, please handle with care to maintain its high motion The slide bush is designed for linear motion, so that for applications in which a combination of linear and rotational motion is a requirement, let us recommend Stroke Bush, Slide Rotary Bush, or Rotary Ball Spline. Figure C-14 Direction of Motion OTHER SPECIFICATIONS • Flange Type Slide Bush with Surface-Treatment The following surface treatments are available as standard option: * Please contact NB for the thickness of coating and the resulting outer diameter tolerance. •Special...

- Two Side Cut Flange Type - part number structure SMST: anti-corrosion inner contact diameter (dr) retainer material blank: standard/steel anti-corrosion/stainless steel outer cylinder surface treatment blank: no surface treatment SK: electroless nickel plating LF: low temperature black chrome treatment with fluoride coating SB: black oxide (not available on anti-corrosion type) UU: seals on both sides 2.7. doublelip-seals on both sides SLIDE BUSH

SMT-E TYPE - Two Side Cut Pilot End Flange Type - part number structure SMST: anti-corrosion inner contact diameter (dr) retainer material blank: standard/steel anti-corrosion/stainless steel outer cylinder surface treatment blank: no surface treatment SK: electroless nickel plating LF: low temperature black chrome treatment with fluoride coating SB: black oxide (not available on anti-corrosion type) SC: industrial chrome plating UU: seals on both sides 2.7. doublelip-seals on both sides SLIDE BUSH

SMK-G-L TYPE - Square Flange Long type - part number structure example Hfl|Mfc|jHJj|[IIIl.Eg inner contact diameter (dr) resin retainer outer cylinder surface treatment blank: no surface treatment SK: electroless nickel plating LF: low temperature black chrome treatment with fluoride coating SB: black oxide (not available on anti-corrosion type) UU: seals on both sides 2.7. doublelip-seals on both sides long type SLIDE BUSH

SMT-W TYPE - Two Side Cut Double-Wide Flange Type - part number structure example H^^raram|[ITI].Hg SMST: anti-corrosion inner contact diameter (dr) retainer material blank: standard/steel anti-corrosion/stainless steel outer cylinder surface treatment blank: no surface treatment SK: electroless nickel plating LF: low temperature black chrome treatment with fluoride coating SB: black oxide (not available on anti-corrosion type) SC: industrial chrome plating UU: sals on both sides 2.7. doublelip-seals on both sides double-wide type SLIDE BUSH

SMTC TYPE - Two Side Cut Center Flange Type part number structure SMTC: standard SMSTC: anti-corrosion inner contact diameter (dr) retainer material blank: standard/steel anti-corrosion/stainless steel outer cylinder surface treatment blank: no surface treatment SK: electroless nickel plating LF: low temperature black chrome treatment with fluoride coating SB: black oxide (not available on anti-corrosion type) SC: industrial chrome plating UU: seals on both sides 2.7. doublelip-seals on both sides SLIDE BUSH

SMF-W-E TYPE - Round Flange Double-Wide Pilot End Type - part number structure example i^^raramjmij.ra.Hg SMSF: anti-corrosion inner contact diameter (dr) retainer material blank: standard/steel anti-corrosion/stainless steel double-wide type outer cylinder surface treatment blank: no surface treatment SK: electroless nickel plating LF: low temperature black chrome treatment with fluoride coating SB: black oxide (not available on anti-corrosion type) SC: industrial chrome plating UU: seals on both sides ZZ: doublelip-seals on both sides Doublelip-seal is available for size 6 to 30. SLIDE BUSH