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MOUNTING OF ROTARY BALL SPLINE The flange attachment bolts have been pre-adjusted for smooth rotary movement and should never be loosened. Shock loading to the flange assembly should be avoided as this can degrade the accuracy of movement and deteriorate the overall performance. Mounting: When the flange is to be used with a faucet joint (as shown in Figure B-23) the housing bore should be machined to a tolerance of H7 and to a minimum depth of 60% of the flange thickness. If only a light load is applied to the SPR in operation, the flange can be used without a pilot end. When the mounting bolts are fixed, they should be tightened diagonally in steps with progressively more torque at each step. A torque wrench should be used to achieve uniform torque. The recommended torque values for medium-hardness steel bolts are listed in Table B-21. Insertion of Spline Shaft: When inserting the rotary ball spline shaft into the spline nut, ensure that the ball elements do not drop out. This is accomplished by aligning the raceway grooves of the shaft with the rows of ball elements in the nut. Then simply insert the spline shaft through the spline nut. LUBRICATION Since NB rotary ball splines are equipped with seals at both the spline portion and the rotational portion, the lubricant is retained for an extended period of time. Lithium soap grease is applied prior to shipment, so they can be used immediately without having to apply lubricant. Lubricant should be added periodically and depending on the operating conditions. NB also provides low dust generation grease for the linear system. Please refer to page Eng-20 for details. A grease fitting can be installed as an optional feature however, an oil lubricant should be used for high- B-35 Figure B-23 Flange mounting Method Table B-21 Recommended Torque unit/Nm installation bolt M2 M2.5 M3 M4 M6 M8 recommended torque 0.4 0.9 1.4 3.2 11.2 27.6 (alloy steel bolt) speed applications. Contact NB for further details. Figure B-24 Example of Installed Grease Fitting grease fitting greater than D+(0.3 1.0) 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
OPERATING ENVIRONMENT Certain operating environments may prevent the full functionality of the rotary ball spline from being achieved expected accuracies. The operating environment should be taken into consideration when designing the system. Operating Temperature: Resin retainers are used in the rotary ball spline, so the operating temperature should never exceed 80. APPLICATION EXAMPLES ball screw B-36 Dust Prevention: The invasion of foreign particles and dust may affect the motion characteristics of the rotary ball spline and shorten the travel life. Seals will perform well under normal operating conditions, but may not <strong>complete</strong>ly prevent the entry of dust in a hostile environment. When used in such environments, a dust prevention mechanism such as bellows or covers should be used to protect the rotary ball spline.
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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
Page 89 and 90: H 1 1 Refer to page A-61 for a desc
Page 91 and 92: H 1 H1 mm 13.5 16 20 24 27.5 1,120
Page 93 and 94: H 1 H1 mm 13.5 16 20 24 27.5 36.5
Page 95 and 96: H 1 H1 mm 13.5 16 20 24 27.5 1,120
Page 97 and 98: H 1 H1 mm 13.5 16 20 24 27.5 1,120
Page 99 and 100: H 1 H1 mm 13.5 16 20 24 27.5 36.5
Page 101 and 102: ACCURACY A-77 Three accuracy grade
Page 103 and 104: GREASE FITTING A-79 A grease fitti
Page 105 and 106: 6-S, D drill Refer to page A-77 fo
Page 107 and 108: The NB ball spline consists of a sp
Page 109 and 110: Table B-2 Types of Spline Nut type
Page 111 and 112: ACCURACY The NB ball spline is meas
Page 113 and 114: LIFE CALCULATION Because ball eleme
Page 115 and 116: 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: PRE-LOAD AND CLEARANCE IN ROTATIONA
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 and 168: TKD-W TYPE Clearance Adjustable Do
Page 169 and 170: TWA-W TYPE Double-Wide Block Type
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
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GMT-W TYPE Two Side Cut Double-Wid
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GMF-W-E TYPE Round Flange Double-W
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GMK-W-E TYPE Square Flange Double-
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GMT-W-E TYPE Two Side Cut Double-W
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SM TYPE Standard Type This type i
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SM-AJ TYPE Clearance-Adjustable Ty
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SM-OP TYPE Open Type This type is
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SM-W TYPE Double-Wide Type This t
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SMF TYPE Round Flange Type This t
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SMK TYPE Square Flange Type This
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SMT TYPE Two Side Cut Flange Type
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SMF-E TYPE Round Flange Type with
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SMK-E TYPE Square Flange Type with
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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
Page 325 and 326:
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
Page 339 and 340:
WA TYPE Shaft Support Rail (Inch
Page 341 and 342:
The NB stroke bush is a linear and
Page 343 and 344:
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,
Page 367 and 368:
The Geometrical moment of inertia (
Page 369 and 370:
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
Page 379 and 380:
Shaft (spindle) Shaft (Quill) Pleas
Page 381 and 382:
Please send drawing for quotation o
Page 383 and 384:
NBs Slide Way NV and NVT types inco
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Figure H-5, Parallelism m 10 8 6 4
Page 387 and 388:
MOUNTING NV TYPE Accuracy of mounti
Page 389 and 390:
NV TYPE part number structure examp
Page 391 and 392:
NVT TYPE part number structure exam
Page 393 and 394:
The NB slide way is a non-recircula
Page 395 and 396:
Example: Figure H-17 SV Type Slide
Page 397 and 398:
SPECIAL BOLT (BT type) BT type spec
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SV TYPE SV1/SV2 part number struc
Page 401 and 402:
Page 403 and 404:
Page 405 and 406:
SV TYPE SV12 part number structur
Page 407 and 408:
SVW TYPE part number structure exam
Page 409 and 410:
STROKE AND RATED LOAD When the stro
Page 411 and 412:
The NB slide table is a precision t
Page 413 and 414:
RATED LIFE The life of an NB slide
Page 415 and 416:
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
Page 423 and 424:
SYT TYPE SYT3 part number structu
Page 425 and 426:
SYT-D TYPE SYT1/SYT2 part number
Page 427 and 428:
SYT-D TYPE SYT3 part number struc
Page 429 and 430:
The NB miniature slide table SYBS t
Page 431 and 432:
Mounting Shape of Mounting Surface
Page 433 and 434:
SYBS TYPE part number structure exa
Page 435 and 436:
Nippon Bearing's Gonio Way family h
Page 437 and 438:
INSTALLATION Figure H-38. Installat
Page 439 and 440:
2-AXES AND CUSTOM SPECIFICATIONS Wh
Page 441 and 442:
RVF TYPE SVT6/SVT9 Part number co
Page 443 and 444:
Suitable for Minute Motion: The fri
Page 445 and 446:
MOUNTING Figure H-44 Example of Mou
Page 447 and 448:
RV TYPE Gonio Way part number str
Page 449 and 450:
CR TYPE (Standard Curved Roller Cag
Page 451 and 452:
NB's BG type is a compact single ax
Page 453 and 454:
PART NUMBER SYSTEM Part number for
Page 455 and 456:
ALLOWABLE SPEED Allowable speed of
Page 457 and 458:
INERTIA Inertia of the slide block
Page 459 and 460:
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
Page 467 and 468:
BG20 Figures inside( ) indicates ma
Page 469 and 470:
Page 471 and 472:
Page 473 and 474:
BG33 Exposed Bracket R0 34 4 14 1.
Page 475 and 476:
RETURN PULLEY UNIT Return pulley un
Page 477 and 478:
BG20 SENSOR Photo-sensor or proximi
Page 479 and 480:
BG33 S Specification (Slim-Type Pho
Page 481 and 482:
BG33 K Specification (Proximity Sen
Page 483 and 484:
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
Page 489 and 490:
BG46A,B For the two-block type, the
Page 491 and 492:
BG20A,B -Without Top-Cover- 8 6 20
Page 493 and 494:
BG26A,B -Without Top-Cover- 10 L1 5
Page 495 and 496:
Page 497 and 498:
BG33C,D -Without Top-Cover- 8 6 33
Page 499 and 500:
Page 501 and 502:
BG46C,D -Without Top-Cover- 13 9 73
Page 503 and 504:
Page 505 and 506:
J-1 SLIDE GUIDE BALL SPLINE ROTARY
Page 507 and 508:
SELECTION METHOD Required Thrust: T
Page 509 and 510:
Sample Calculation: 1. Selecting a
Page 511 and 512:
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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