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Linear Guides Standard Items

Linear Guides Standard Items
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MOTION & CONTROL™ LINEAR GUIDES STANDARD ITEMS

As one of the world's leading manufacturers of rolling bearings, linear technology components and steering systems, we can be found on almost every continent - with production facilities, sales offices and technology centres - because our customers appreciate short decision-making channels, prompt deliveries and local service. NSK commenced operations as the first Japanese manufacturer of rolling bearings back in 1916. Ever since, we have been continuously expanding and improving not only our product portfolio but also our range of services for various industrial sectors. In this context,...

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Partnership based on trust – and trust based on quality Total Quality by NSK: The synergies of our global network of NSK Technology Centres. Just one example of how we meet our requirements for high quality. NSK is one of the leading companies with a long tradition in patent applications for machine parts. In our worldwide research centres, we not only concentrate on the development of new technologies, but also on the continual improvement of quality based on the integrated technology platform of tribology, material technology, analysis and mechatronics. More about NSK at www.nskeurope.com...

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Linear Guides Types of Linear Guides LH/SH Series • General versatility for heavy-duty applications • Large load carrying capacity against vertical direction Stainless steel is available (#15-30). • Silent and smooth featured LH incorporated with retainer piece LS/SS Series • Compact designed NSK basic series • General versatility for fine application • Large load carrying capacity against vertical direction Stainless steel is available (#15-35). • Silent and smooth featured LS incorporated with retainer piece • A roller guide with super high load capacity and rigidity • Super high accuracy...

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Ball slide model Size & Preload Slight preload Slight preload Medium preload Slight preload Maximum clearance Maximum clearance Maximum clearance

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Linear Guides Accuracy Accuracy Standard Table 1 Definition of accuracy Characteristics Definition (Figures 1, 2) Mounting height H Variation of H Distance from A (rail bottom datum face) to C (ball slide top face) Variation of H in ball slides assembled to the rails of a set of linear guides Mounting width W2 or W3 Distance from B (rail side datum face) to D (ball slide side datum face). Applicable only to the reference linear guide. Variation of W2 or W3 Difference of the width (W 2 or W 3 ) between the assembled ball slides, which are installed in the same rail. Applicable only to the...

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Assembly dimension tolerance of random-matching type Unit: *1 Variation of mounting height H is specified on one rail. *2 Variation of mounting height H is specified on multiple rails. Running parallelism tolerance of random-matching type: A//C or B//D Unit: urn Available rail length (max. length)

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Linear Guides NSK PH-Series (Precision accuracy grade / Random matching)

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Running parallelism of PH grade is equivalent to P5 grade of NSK matched rail / ball slide assembly. Accuracy grade (running parallelism) can be specifi ed as PH or PC. Assembly accuracy of PH grade is shown below. Note: 1) Variation on the same rail 2) Variation on multiple rails The preload can be specified as H (medium) or Z (slight). Part number Part number for ball slide only Part number for rail only NSK control number Series Preload Z: Slight preload, H Medium preload Part number for assembly Preload Z: Slight preload (Common rail for sight or medium preload) Accuracy grade PH:...

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Linear Guides Double Seal and Protector • Double seal (a combination of two end seals) to enhance seal function. • Protector (a steel plate added on end seal) to prevent high temperature fine particles, such as welding spatter and other foreign matter, from entering the ball slide. *** Consult with NSKwhen attaching a connector to a drive-in type grease fitting • When a double seal or protector is installed, the ball slide becomes longer by the sizes shown in Tables 2 • When attaching a grease fitting to the end-cap after the double seal or protector is equipped, a connector, shown in Fig....

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Cap to Cover Bolt Hole for Rail Mounting • After the rail is mounted to the machine base, a cap is used to cover the bolt hole to prevent foreign matter from clogging up the hole or from entering the • The cap for the bolt hole is made of synthetic resin, which is superb in its resistance to oil and wear. • Table 4 shows sizes of the bolts for each model number as well as reference numbers of caps. • To insert a cap into the rail bolt hole, use a flat tool (Fig. 6). Pound the cap gradually until its top becomes flush with the rail top face.

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Linear Guides LH Series Ball Slide Models: AL, AN, BL, BN Front view of AL and AN, BL and BN types Side view of BN type Note 1: External appearance of stainless steel ball slides differs from those of carbon steel ball slides Part number for ball slide only Part number for rail only ball slide No code: Carbon steel temperature chrome temperature chrome Material/surface treatment Preload Z: Slight preload Preload H: Medium preload Butting rail specification Accuracy grade (*** is required when making

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Side view of AN type Note 2: Basic dynamic load rating C is a load that allows for a 50-km rating fatigue life and is a vertical and constant load on the ball slide mounting surface To convert C to C100 for a 100-km fatigue life, divide C by 1.26 Part number for assembly (ball slide + rail) Material/surface treatment C: Carbon steel (NSK standard) D: Carbon steel + surface treatment H: Stainless steel + surface treatment Preload Z: Slight preload Preload H: Medium preload Accuracy grade PC: Normal grade, KC: PC with NSK K1 PH: Precision grade, KH: PH with NSK K1 (*** is required when making...

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Linear Guides LH Series Side view of GM type Note 1: Parenthesized dimensions are for items made of stainless steel Note 2: External appearance of stainless steel ball slides differs from those of carbon steel ball slides Part number for ball slide only Part number for rail only ball slide No code: Carbon steel temperature chrome temperature chrome Preload Z: Slight preload Preload H: Medium preload Material/surface treatment Butting rail specification Accuracy grade (*** is required when making

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