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TWA TYPE Block Type (Inch Series) part number structure example TWA type size part number TWA 4UU TWA 6UU TWA 8UU TWA 10UU TWA 12UU TWA 16UU TWA 20UU TWA 24UU TWA 32UU TWA 20 UU 4-S G T SK E .0012 blank standard SK anti-corrosive seal blank without seal UU seals on both sides M W B .01 h .0012 F C-18 oil hole* L C .01 self-aligning 1 in all directions nom. shaft dia. h E W major dimensions L F T G M basic load rating mounting dimensions dynamic static B C S C Co mass inch inch inch inch inch inch inch inch inch inch inch inch lbs. lbs. lbs. 1/4 .4370 .8125 1.625 1.188 .813 .188 .750 1.000 1.312 .750 .156 60 80 .090 3/8 .5000 .8750 1.750 1.313 .938 .188 .875 1.125 1.437 .875 .156 95 120 .120 1/2 .6870 1.0000 2.000 1.688 1.250 .250 1.125 1.375 1.688 1.000 .156 230 290 .248 5/8 .8750 1.2500 2.500 1.938 1.625 .281 1.437 1.750 2.125 1.125 .188 400 500 .465 3/4 .9370 1.3750 2.750 2.063 1.750 .313 1.563 1.875 2.375 1.250 .188 470 590 .553 1 1.1870 1.6250 3.250 2.813 2.188 .375 1.938 2.375 2.875 1.750 .219 850 1060 1.200 1-1/4 1.5000 2.0000 4.000 3.625 2.813 .438 2.500 3.000 3.500 2.000 .219 1230 1530 2.380 1-1/2 1.7500 2.3750 4.750 4.000 3.250 .500 2.875 3.500 4.125 2.500 .281 1480 1850 3.460 2 2.1250 3.0000 6.000 5.000 4.063 .625 3.625 4.500 5.250 3.250 .406 2430 3040 6.830 * Provided with push-in oil fitting for 1/4" to 1/2" sizes. Sizes from 5/8" to 2" offer a 1/4-28 tapped hole with a plug for adding a fitting if desired. (1) For anti-corrosion the load plates are electroless nickel plated with Stainless Steell ball elements. 1inch = 25.4mm 1lbs0.454kg 1lbs4.448N
TWA-W TYPE Double-Wide Block Type (Inch Series) part number structure example TWA type size double-wide type TWA 20 W UU 4-S G T SK blank standard SK anti-corrosive seal blank without seal UU seals on both sides E .0012 M W B .01 h .0012 F C-19 oil hole* L C .01 part number nom. shaft dia. h E major dimensions W L F T G M basic load rating mounting dimensions dynamic static B C S C Co mass inch inch inch inch inch inch inch inch inch inch inch inch lbs. lbs. lbs. TWA 4WUU 1/4 .4370 .8125 1.625 2.500 .813 .188 .750 1.000 1.312 2.000 .156 96 160 .190 TWA 6WUU 3/8 .5000 .8750 1.750 2.750 .938 .188 .875 1.125 1.437 2.250 .156 150 240 .250 TWA 8WUU 1/2 .6870 1.0000 2.000 3.500 1.250 .250 1.125 1.375 1.688 2.500 .156 370 580 .510 TWA 10WUU 5/8 .8750 1.2500 2.500 4.000 1.625 .281 1.437 1.750 2.125 3.000 .188 640 1000 1.000 TWA 12WUU 3/4 .9370 1.3750 2.750 4.500 1.750 .313 1.563 1.875 2.375 3.500 .188 750 1180 1.200 TWA 16WUU 1 1.1870 1.6250 3.250 6.000 2.188 .375 1.938 2.375 2.875 4.500 .219 1360 2120 2.400 TWA 20WUU 1-1/4 1.5000 2.0000 4.000 7.500 2.813 .438 2.500 3.000 3.500 5.500 .219 1970 3060 5.000 TWA 24WUU 1-1/2 1.7500 2.3750 4.750 9.000 3.250 .500 2.875 3.500 4.125 6.500 .281 2370 3700 7.800 * Provided with push-in oil fitting for 1/4" to 1/2" sizes. Sizes from 5/8" to 2" offer a 1/4-28 1inch = 25.4mm tapped hole with a plug for adding a fitting if desired. 1lbs0.454kg (1) For anti-corrosion the load plates are electroless nickel plated with Stainless Steell ball elements. 1lbs4.448N SLIDE GUIDE BALL SPLINE ROTARY BALL SPLINE STROKE BALL SPLINE TOPBALL PRODUCTS SLIDE BUSH SLIDE UNIT STROKE BUSH SLIDEROTARYBUSH SLIDE SHAFT SLIDE WAY/GONIO WAY SLIDE TABLE MINIATURE SLIDE ACTUATOR SLIDE SCREW
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NB Products are available from MARY
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Eng- 112 Tech- 17 INDEX- 18
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SLIDE GUIDE SEBS-B/BY P.A-26 SEBS-B
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BALL SPLINE SSP/SSPS P.B-16 SSPM P.
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SLIDE BUSH GM P.D- 12 GW P.D-120 SM
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SLIDE BUSH (Flange Type) SMFC P.D-
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SLIDE UNIT SWA P.E-38 SWJ P.E-40 SW
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SLIDE SHAFT SN P.G-6 SNS P.G-7 SNT
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INDEX AK Slide Unit : Compact Block
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SA Slide Unit : Shaft Support Rail
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SMS-G Slide Bush : Standard Type, A
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SW Slide Bush (Inch Standard) : Sta
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A-1 SLIDE GUIDE BALL SPLINE ROTARY
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Table A-1 Types miniature type high
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RIGIDITY AND PRE-LOAD The rolling e
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MOUNTING A-7 Slide guides have a h
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A-9 Mounting: In general, a slide
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When reference surface is not provi
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Figure A-23 Examples of Joined Guid
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Bellows Option (Series: GL or SGL)
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A-17 Calulcation method of length
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Simplified lubrication management A
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A-21 The SEB(S) type slide guides
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RATED LOAD The load rating for SEB(
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MOUNTING BOLTS Extremely small cust
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H b MR 0 -0.1 B P1 W 0 -0.05 C 4-S
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H b W MR 0 -0.1 Refer to page A-2
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H 1 H1 mm 2 2.6 4 4.7 5.5 7.5 9.5 1
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H 1 A-33 L2(with side-seal) L1(with
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TYPES SER-type slide guides are ava
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Figure A-48 Shoulder Shape-2 r1 r1
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Refer to page A-35 for a descriptio
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Refer to page A-35 for a descriptio
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BLOCK TYPES A-43 Six different typ
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Clean Operation A-45 Ball cushions
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MOUNTING A-47 As shown in Figure A
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H 1 T1 mm 5 6 6.5 9 8.5 1,240 1,36
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H 1 1 Refer to page A-43 for a desc
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H 1 T1 mm 9 8 13.5 12 15.5 20 1,24
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T1 mm 5 6 6.5 9 H 1 8.5 1,240 1,360
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T1 mm 5 6 6.5 9 8.5 H 1 1,240 1,360
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H 1 T1 mm 5 8 9.5 9 8.5 10 T greas
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BLOCK TYPES A-61 Six different typ
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MOUNTING Slide guides are generally
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H 1 1 Refer to page A-61 for a desc
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H 1 H1 mm 13.5 16 20 24 27.5 1,120
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H 1 H1 mm 13.5 16 20 24 27.5 36.5
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H 1 H1 mm 13.5 16 20 24 27.5 1,120
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H 1 H1 mm 13.5 16 20 24 27.5 1,120
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H 1 H1 mm 13.5 16 20 24 27.5 36.5
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ACCURACY A-77 Three accuracy grade
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GREASE FITTING A-79 A grease fitti
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6-S, D drill Refer to page A-77 fo
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The NB ball spline consists of a sp
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Table B-2 Types of Spline Nut type
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ACCURACY The NB ball spline is meas
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LIFE CALCULATION Because ball eleme
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Fit: A transition fit between an SS
Page 117 and 118: Mounting of SSPM Type Spline: Examp
Page 119 and 120: Mounting of SSPF Type Spline: Examp
Page 121 and 122: SSP TYPE Cylindrical Spline Nut p
Page 123 and 124: SSPM TYPE Keyless Spline Nut part
Page 125 and 126: SSPF TYPE Flange Type Nut part nu
Page 127 and 128: SSPT TYPE Two Side Cut Flange Type
Page 129 and 130: SPA TYPE Keyless Block Type part
Page 131 and 132: SPA-W TYPE Keyless Block Double Ty
Page 133 and 134: SSPB TYPE Block Type part number
Page 135 and 136: STANDARD BALL SPLINE part number st
Page 137 and 138: The NB rotary ball spline can be us
Page 139 and 140: PRE-LOAD AND CLEARANCE IN ROTATIONA
Page 141 and 142: OPERATING ENVIRONMENT Certain opera
Page 143 and 144: SPR TYPE part number structure exam
Page 145 and 146: The NB stroke ball spine SPLFS type
Page 147 and 148: PRE-LOAD AND CLEARANCE IN ROTATIONA
Page 149 and 150: SPLFS TYPE - Two Side Cut Flange Ty
Page 151 and 152: C-1 SLIDE GUIDE BALL SPLINE ROTARY
Page 153 and 154: TOPBALL TOPBALL unit closed type op
Page 155 and 156: Load coefficient (fw): When calcula
Page 157 and 158: Shaft and Housing: To optimize NB T
Page 159 and 160: mm 22.0 22.9 24.9 31.5 44.1 52.1 60
Page 161 and 162: 120 inch .515 .703 1.032 1.112 1.2
Page 163 and 164: TKA-W TYPE Double-Wide Block Type
Page 165 and 166: TKE-W TYPE Double-Wide Open Block
Page 167: TKD-W TYPE Clearance Adjustable Do
Page 171 and 172: TWJ-W TYPE Clearance Adjustable Do
Page 173 and 174: TWD-W TYPE Double-Wide Open Block
Page 175 and 176: The NB slide bush is a linear motio
Page 177 and 178: Table D-2 Types (2) standard type c
Page 179 and 180: SPECIFICATIONS Dimensional Series:
Page 181 and 182: Examples of Mounting methods are sh
Page 183 and 184: Notes on Installation: When inserti
Page 185 and 186: GM TYPE Single Type part number s
Page 187 and 188: GMF-W TYPE Round Flange Double-Wid
Page 189 and 190: GMK-W TYPE Square Flange Double-Wi
Page 191 and 192: GMT-W TYPE Two Side Cut Double-Wid
Page 193 and 194: GMF-W-E TYPE Round Flange Double-W
Page 195 and 196: GMK-W-E TYPE Square Flange Double-
Page 197 and 198: GMT-W-E TYPE Two Side Cut Double-W
Page 199 and 200: SM TYPE Standard Type This type i
Page 201 and 202: SM-AJ TYPE Clearance-Adjustable Ty
Page 203 and 204: SM-OP TYPE Open Type This type is
Page 205 and 206: SM-W TYPE Double-Wide Type This t
Page 207 and 208: SMF TYPE Round Flange Type This t
Page 209 and 210: SMK TYPE Square Flange Type This
Page 211 and 212: SMT TYPE Two Side Cut Flange Type
Page 213 and 214: SMF-E TYPE Round Flange Type with
Page 215 and 216: SMK-E TYPE Square Flange Type with
Page 217 and 218: SMT-E TYPE Two Side Cut Pilot End
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SMF-W TYPE Round Flange Double-Wid
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SMK-W TYPE Square Flange Double-Wi
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SMT-W TYPE Two Side Cut Double-Wid
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SMFC TYPE Center Mount Round Flang
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SMKC TYPE Center Mount Square Flan
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SMTC TYPE Two Side Cut Center Flan
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SMF-W-E TYPE Round Flange Double-W
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SMK-W-E TYPE Square Flange Double-
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SMT-W-E TYPE Two Side Cut Double-W
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TRF TYPE Triple-Wide Round Flange
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TRK TYPE Triple-Wide Square Flange
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TRFC TYPE Triple-Wide Intermediate
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TRKC TYPE Triple-Wide Intermediate
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TRF-E TYPE Triple-Wide Round Flang
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TRK-E TYPE Triple-Wide Square Flan
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KB TYPE Standard Type This type i
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KB-AJ TYPE Clearance Adjustable Ty
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KB-OP TYPE Open Type This type is
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KB-W TYPE Double-Wide Type This t
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KBF TYPE Round Flange Type This t
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KBK TYPE Square Flange Type This
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KBT TYPE Two Side Cut Flange Type
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KBF-W TYPE Round Flange Double-Wid
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KBK-W TYPE Square Flange Double-Wi
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KBFC TYPE Center Mount Round Flang
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KBKC TYPE Center Mount Square Flan
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SW TYPE Standard Type This type i
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SW-AJ TYPE Clearance Adjustable Ty
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SW-OP TYPE Open Type This type is
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SW-W TYPE Double-Wide Type This t
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SWF TYPE Round Flange Type This t
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SWK TYPE Square Flange Type This
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SWT TYPE Two Side Cut Flange Type
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SWF-W TYPE Round Flange Double-Wid
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SWK-W TYPE Square Flange Double-Wi
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SWFC TYPE Center Mount Round Flang
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SWKC TYPE Center Mount Square Flan
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GW TYPE Single Type part number s
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Table E-1 types A wide variety of
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Table E-3 metric series types shaht
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ACCURACY The accuracy of the SA typ
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SMA TYPE Block Type part number s
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SMA-W TYPE Double-Wide Block Type
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AK TYPE Compact Block Type part nu
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AK-W TYPE Double-Wide Compact Block
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SMB TYPE Block Type part number st
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SMP TYPE Pillow Block Type part n
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SMJ TYPE Clearance Adjustable Type
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SME TYPE Open Block Type part numb
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SME-W TYPE Double-wide Open Block T
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SMD TYPE Open Block with Clearance
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RB TYPE Resin Block Type part numb
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SH TYPE Shaft End Supporter (Cast
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E-32 part number structure example
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CE TYPE Non-Clearance Adjustable T
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CD TYPE Clearance Adjustable Type
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SWA TYPE Block Type (Inch Series)
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SWJ TYPE Clearance Adjustable Bloc
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SWD TYPE Open Block Type (Inch Se
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RBW TYPE Resin Block Type (Inch S
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WA TYPE Shaft Support Rail (Inch
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The NB stroke bush is a linear and
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F-4 SR TYPE SR 20 part number struc
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F-6 SR-B TYPE SR 20 part number str
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NB's Slide Rotary Series consists o
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Application Examples Application Ex
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SRE TYPE part number SRE
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SREK TYPE Square Flange type
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F-16 SLIDE ROTARY UNIT SMA-R TYPE B
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F-18 SLIDE ROTARY UNIT AK-R TYPE Co
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SLIDE ROTARY UNIT SMP-R TYPE Pillow
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NB's RK type slide rotary bush is a
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G-1 SLIDE GUIDE BALL SPLINE ROTARY
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SN/SNS/SNT Type (NB Shaft) P.G-6,7,
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The Geometrical moment of inertia (
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SNS TYPE NB Stainless Steel Shaft
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NB CENTER-LINED TAPPED SHAFT G-9 A
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SNWS TYPE NB Inch Stainless Steel
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SNWS-PD NB Inch Pre-Drilled Stainl
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MACHINING EXAMPLE NB can fabricate
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Shaft (spindle) Shaft (Quill) Pleas
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Please send drawing for quotation o
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NBs Slide Way NV and NVT types inco
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Figure H-5, Parallelism m 10 8 6 4
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MOUNTING NV TYPE Accuracy of mounti
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NV TYPE part number structure examp
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NVT TYPE part number structure exam
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The NB slide way is a non-recircula
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Example: Figure H-17 SV Type Slide
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SPECIAL BOLT (BT type) BT type spec
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SV TYPE SV1/SV2 part number struc
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Page 403 and 404:
Page 405 and 406:
SV TYPE SV12 part number structur
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SVW TYPE part number structure exam
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STROKE AND RATED LOAD When the stro
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The NB slide table is a precision t
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RATED LIFE The life of an NB slide
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H-34 SVT TYPE SVT1/SVT2 part numb
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Page 419 and 420:
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SYT TYPE SYT1/SYT2 part number st
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SYT TYPE SYT3 part number structu
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SYT-D TYPE SYT1/SYT2 part number
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SYT-D TYPE SYT3 part number struc
Page 429 and 430:
The NB miniature slide table SYBS t
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Mounting Shape of Mounting Surface
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SYBS TYPE part number structure exa
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Nippon Bearing's Gonio Way family h
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INSTALLATION Figure H-38. Installat
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2-AXES AND CUSTOM SPECIFICATIONS Wh
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RVF TYPE SVT6/SVT9 Part number co
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Suitable for Minute Motion: The fri
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MOUNTING Figure H-44 Example of Mou
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RV TYPE Gonio Way part number str
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CR TYPE (Standard Curved Roller Cag
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NB's BG type is a compact single ax
Page 453 and 454:
PART NUMBER SYSTEM Part number for
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ALLOWABLE SPEED Allowable speed of
Page 457 and 458:
INERTIA Inertia of the slide block
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ACCURACY Table I-7 shows accuracy o
Page 461 and 462:
RATED LIFE To obtain the rated life
Page 463 and 464:
A.1.c. PT for Vertical Move ) durin
Page 465 and 466:
LUBRICATION BG type contains a lith
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BG20 Figures inside( ) indicates ma
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Page 471 and 472:
Page 473 and 474:
BG33 Exposed Bracket R0 34 4 14 1.
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RETURN PULLEY UNIT Return pulley un
Page 477 and 478:
BG20 SENSOR Photo-sensor or proximi
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BG33 S Specification (Slim-Type Pho
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BG33 K Specification (Proximity Sen
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BG46 H Specification (Close Contact
Page 485 and 486:
BG55 S Specification (Compact Photo
Page 487 and 488:
POSITIONING PIN HOLE For the BG typ
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BG46A,B For the two-block type, the
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BG20A,B -Without Top-Cover- 8 6 20
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BG26A,B -Without Top-Cover- 10 L1 5
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BG33C,D -Without Top-Cover- 8 6 33
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Page 501 and 502:
BG46C,D -Without Top-Cover- 13 9 73
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Page 505 and 506:
J-1 SLIDE GUIDE BALL SPLINE ROTARY
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SELECTION METHOD Required Thrust: T
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Sample Calculation: 1. Selecting a
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SS TYPE part number structure examp
Page 513 and 514:
DEFINITIONS AND INDICATIONS OF GEOM
Page 515 and 516:
SQUARENESS Squareness assumes a com
Page 517 and 518:
shaft dimensional tolerance diamete
Page 519:
NB Products are available from MARY
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