SLIDE BUSH

1 SLIDE BUSH. SLIDE BUSH. SLIDE BUSH. STRUCTURE AND ADVANTAGES C-2. TYPES C-3. block SERIES C-6. SPECIFICATIONS C-7. LIFE CALCULATION C-7. LOAD RATING FOR OPEN TYPE SLIDE BUSH C-8. MOUNTING C-8. LUBRICATION C-10. DUST PREVENTION C-10. COUNTERMEASURE FOR DUST PREVENTION C-11. FIT SERIES C-11. SURFACE TREATMENT ANTIRUST EFFECT C-12. SPECIAL SPECIFICATIONS C-12. ACCURACY OF CE CD TYPE C-12. USE AND HANDLING PRECAUTIONS C-13. NOTES ON USAGE OF block SERIES C-13. DIMENSION TABLE C-14 . C-1. SLIDE BUSH. SLIDE BUSH. Figure C-2 Basic Structure of NB SLIDE Bush (GM). The NB SLIDE bush is a linear motion mechanism utilizing the GM type retainer rotational motion of ball elements. Since linear motion is obtained steel outer cylinder using a simple mechanism, the SLIDE bush can be used in a wide resin outer cylinder ball element variety of applications, including transportation equipment, food processing equipment, and semiconductor manufacturing equipment.

2 STRUCTURE AND ADVANTAGES. The outer cylinder of SLIDE bush contains a ball Low Friction resin seal retainer that is perfectly designed to control the The raceway surface is precision ground. Since the circulation of ball elements, resulting in smooth contact surface between the ball elements and the linear motion. raceway surface is minimized, the NB SLIDE bush Compact Machanism provides low friction compared to other linear motion The NB SLIDE bush uses a round shaft for the mechanisms. TYPES. SLIDE BUSH. guiding axis, resulting in space-saving, which allows GM Series for compact designs. The GM SLIDE bush makes efficient use of resin sub- Table C-1 Type (1). A Wide Variety of Shapes and parts making it possible to achieve an overall weight type standard anti-corrosion page reduction of 30 50% compared with the SM.

3 Installation Methods SLIDE bush. The ball return section is made of resin standard type SM SMS C- 14. The NB SLIDE bush is available in various types, material, which serves for low noise operation. Also, standard, clearance-adjustable, open, flange, etc., cost-effectiveness expands the use of SLIDE bush in KB KBS C- 78. for a various applications. many applications. Selection According to Environment block Type Series SW SWS C- 98. NB SLIDE bushes are available in standard and anti- block type series is a unit of NB SLIDE bush and corrosion types. Available options include steel- clearance-adjustable (AJ) type a block type housing. A variety of block types SM-AJ SMS-AJ C- 16. retainer suitable for use in harsh environments and are available such as precision-machined blocks, resin retainer for low acoustic, low-cost requirement.

4 Resin-made blocks, and cost-effective units, each Other options can be specified according to the KB-AJ KBS-AJ C- 80. contributes to higher accuracy, light-weight, and application requirements. low-cost and design-time saving, respectively. SW-AJ SWS-AJ C-100. Compatibility FIT Series The NB SLIDE bush is fully compatible with a variety FIT series is a combination of NB SLIDE bush and open (OP) type SM-OP SMS-OP C- 18. of shaft types. precision-machined shaft. The best-fit between Doublelip-Seal SLIDE bush and shaft achieves a smooth, high- KB-OP KBS-OP C- 82. Doublelip-seals reduce the grease leakage, keeping the accuracy per forma nce meeting the customer same function as UU seals which prevent the foreign requirements.

5 (see page F-24). SW-OP SWS-OP C-102. particles from entering the bush. (see page C-7). long type Figure C-1 Basic Structure of NB SLIDE Bush (SM, KB, SW). Standard Type Flange Type anged outer cylinder retainer SM-G-L C- 20. outer cylinder retainer side ring side ring double-wide type SM-W SMS-W C- 22. ball element KB-W KBS-W C- 84. ball element SW-W SWS-W C-104. C-2 C-3. SLIDE BUSH. Table C-2 Type (2) Table C-3 Type (3). type standard anti-corrosion page type standard page flange type SMF SMSF C- 24 triple wide flange type KBF KBSF C- 86 TRF C- 56. SWF SWSF C-106 option SMK SMSK C- 26. KBK KBSK C- 88. SWK SWSK C-108 TRK C- 58. SMT SMST C- 28. TRT C- 60. flange type with pilot end SMF-E SMSF-E C- 30 Outer cylinder is treated with electroless nickel plating triple-wide intermediate position flange type option TRFC C- 62.

6 SMK-E SMSK-E C- 32. Outer cylinder SMT-E SMST-E C- 34 is treated with TRKC C- 64. SLIDE BUSH. electroless nickel plating long flange type triple-wide pilot end flange type option TRF-E C- 66. SMK-G-L C- 36 Outer cylinder is treated with electroless nickel TRK-E C- 68. plating flange type with pilot end double wide flange type SMF-W SMSF-W C- 38 Grease fitting is TQF-E C- 70. KBF-W KBSF-W C- 90 standard SWF-W SWSF-W C-110. SMK-W SMSK-W C- 40. KBK-W KBSK-W C- 92 TQK-E C- 72. SWK-W SWSK-W C-112. double flange type with pilot end SMT-W SMST-W C- 42 TQF-W-E C- 74. Grease fitting is standard center mount flange type SMFC SMSFC C- 44. KBFC KBSFC C- 94 TQK-W-E C- 76. SMKC SMSKC C- 46. KBKC KBSKC C- 96 Table C-4 Type (4) GM Series type standard page SMTC SMSTC C- 48.

7 GM/GW single type GM C-114. double-wide pilot end flange type SMF-W-E SMSF-W-E C- 50. GW C-116. SMK-W-E SMSK-W-E C- 52. GM double-wide type SMT-W-E SMST-W-E C- 54 GM-W C-115. C-4 C-5. SLIDE BUSH. block SERIES SPECIFICATIONS. SMA AK SWA Type SMP Type Series Table C-5 Series and Use Location This type is the most commonly used standard type. The housing has a self-aligning feature. This feature The NB SLIDE bush is available in three primary location The housing is made of aluminum alloy. The wide will absorb inaccuracy of the installation base so dimensional series, each with different dimensions series North Japan Asia Europe America (W) type is also available for SMA and AK types.

8 That a smooth movement is expected. and tolerances depending on the location of use. SM. Please select the series that is most appropriate for . SMJ SWJ Type SME SMD SWD Type your location. metric GM. Clearance- adjustment is achieved by creating a slit Open type housing allows a support from below so KB . on the SMA/SWA type housing. Less clearance that a deflection of the shaft is minimized for high between block and shaft results in higher positioning loading or long-stroke applications. The wide(W) SW. inch . accuracy by tightening the adjustment screw. type is also available for SME type. GW. RBW Type CE CD Type Allowable Load generally used rarely used The housing is made of ABS resin for light-weight This type is a unit of block (s), shaft, and support N B slid e b u s h e s a re c a te g o rize d into t h re e Table C-6 Load Comparison and low-cost.

9 Inside is an inch sized bush of a resin rail that contributes to a total cost reduction. The functional types depending on the number and basic dynamic basic static allowable retainer type with seals. maximum length is 2,000mm for the support rail location of retainers: single, double, and triple. type load rating load rating static moment and for the shaft the maximum length is 4,500mm. Table C-6 shows load ratings and static moment in Metric Series comparison. The single type uses only one retainer, single 1 1 1. SMA type SMA-W type AK type AK-W type so when a moment load is to be applied, the double long approx. 4. or triple type is recommended. GM-W 2 approx. 4. SLIDE BUSH. SM double 2 approx.

10 6. triple 2 The single type is designated as "1" for comparison purposes. Material The outer cylinder of standard type is made of Table C-7 Operating Environment Temperature bearing steel and the outer cylinder of anti-corrosion material SMP type SMJ type SME type SME-W type SMD type type is made of Martensitic stainless steel. The temperature range outer cylinder retainer retainer is available in steel (stainless steel for anti- corrosion), and resin for low acoustic operation. The steel 20 110 . steel steel retainer is made of one plate (seamless type). resin 20 80 . steel 20 140 *. stainless resin 20 80 . * If a seal is used in the stainless steel SLIDE bush, the CE type CD type temperature is up to 120.