Needle Roller Bearings - Ntn-snr.com

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Linear roller bearings NTN Linear <strong>Roller</strong> <strong>Bearings</strong> This roller bearing with cylindrical rollers having the function capable of circulating within the raceway block ensures smooth infinite linear motion on a flat surface. The cylindrical rollers are retained and guided by the cage and the ribs of the raceway block. The cage is of such a construction as not allow adjacent rollers to contact with one another. Hence, the friction coefficient is low. Requirements and tolerances for raceway surface and mounting surface Table 2 shows the requirements and tolerances for the raceway surface, on which linear roller bearing rolls, and the bearing mounting surface. Where adhesion of a hard foreign matter to the raceway surface is forecast, the raceway surface must be protected with a proper protective cover. The reference surface for mounting is the back face and opposite face to NTN mark. Table 2 Requirements for raceway surface and mounting surface Fig. 1 Characteristics Raceway surface roughness (max) Raceway surface hardness Effective hardened layer depth of raceway surface (min) Parallelism of mounting surface ∆ x See Fig. 2 ∆ ySee Fig. 3 Allowable value or tolerance range 0.2a HRC5864 as described in applicable Dimensions Table 0.05 mm per 100 mm 0.01 mm per 100 mm Bearing accuracy All the linear roller bearings are manufactured within the dimensional tolerance range of 0 to -2.5m for bearing height (H). And these bearings are delivered classified into 5-stepped tolerance classes. (See Table 1) NTN mark here Table 1 Classification of bearing height H by accuracy class Unit : m Class code Tolerance for height (H) Fig. 2 1H 2H 3H 4H 5H 0 5 510 1015 1520 2025 Fig. 3 How to mount Fix linear roller bearing using the tapped holes which are provided on the mounting reference surface. (See Fig. 4) Fig. 4 B-252
Linear roller bearings NTN Type RLM Section ZZ H 1638mm Boundary dimensions Bearing Basic load ratings Required Mass numbers dynamic static dynamic static case depth on track mm N kgf kg min. H C L Lw E F G Lt e g K Cr Cor Cr Cor mm (approx.) 16 25 62 8 17 19 M4 35.5 12.5 6 3.2 RLM16 62 15 400 34 000 1 570 3 450 0.3 0.11 19 27 69 10 25.5 20.6 M4 43.4 15.5 6 3.2 RLM19 69 26 100 58 000 2 670 5 900 0.3 0.16 26 40 86 14 28 30 M6 52.4 21 10 4.5 RLM26 86 50 000 106 000 5 100 10 800 0.4 0.41 26 40 102 14 44 30 M6 67.9 21 10 4.5 RLM26102 62 500 142 000 6 400 14 500 0.4 0.53 26 40 126 14 68 30 M6 91.8 21 10 4.5 RLM26126 80 000 195 000 8 150 19 900 0.4 0.70 38 52 134 20 51 41 M8 85.7 31 14 6.5 RLM38134 124 000 270 000 12 700 27 500 0.5 1.3 B-253
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For New Technology Network R corpor
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Technical Data A-001058 Needle roll
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Needle Roller Bearings
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DIMENSIONAL DATA CONTENTS Needle Ro
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Classification and Characteristics
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Load Rating and Life NTN Table 2.1
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Load Rating and Life NTN When the o
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Load Rating and Life NTN 2.10 Radia
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Calculation of Bearing Loads NTN (2
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Calculation of Bearing Loads NTN 3.
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Bearing Accuracy NTN 4. Bearing Acc
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A-27 Bearing Accuracy NTN 7 7 8 8 8
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Bearing Accuracy NTN Table 4.5 Allo
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Bearing Internal Clearance NTN 5.2.
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Bearing Fits NTN 6.4 Recommended Fi
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Bearing Fits NTN 6.5 Interference C
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Shaft Bearing and Fits Housing Desi
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Shaft Bearing and Fits Housing Desi
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Lubrication NTN Table 8.2 Grease va
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Lubrication NTN (4) Circulating lub
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Sealing Devices NTN 9. Sealing Devi
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Sealing Devices NTN 9.2 Combined se
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Bearing Handling NTN 10. Bearing Ha
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Bearing Handling NTN the bearing fi
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Technical Data NTN 11.2 Bearings wi
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Technical Data NTN expressed in the
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Bearing Type Symbols and Auxiliary
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Needle roller and cage assemblies B
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Needle Roller and Cage Assemblies
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Needle roller and cage assemblies N
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Cage and roller type needle roller
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Needle Roller and Cage Assemblies f
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Needle roller and cage assemblies f
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Drawn Cup Needle Roller Bearings
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Drawn cup needle roller bearings NT
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Drawn cup needle roller bearings se
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Drawn cup needle roller bearings se
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Machined Ring Needle Roller Bearing
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Machined ring needle roller bearing
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Machined-ring needle roller bearing
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Machined Ring Needle Roller Bearing
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Inner Rings
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Inner rings NTN Type IR d 510mm Bou
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Inner rings NTN d 1520mm Boundary d
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Inner rings NTN d 80100mm Boundary
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Inner rings NTN d 170380mm Boundary
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Inner rings NTN Inch series Type MI
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Inner rings NTN d 101.600203.200mm
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Adjustable-Clearance Needle Roller
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Clearance-adjustable needle roller
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Clearance-adjustable needle roller
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Complex Bearings
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Complex bearings NTN Bearing compon
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Complex bearings NTN B-143
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Needle roller bearings with thrust
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Needle roller bearings with angular
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Needle roller bearings with three-p
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Needle roller bearings with double-
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Needle roller bearings with double-
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Roller Followers / Cam Followers
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Roller followers: Yoke-type track r
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Roller followers : Yoke type truck
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Cam followers stud type truck rolle
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Page 263 and 264: Cam followers stud type truck rolle
Page 265 and 266: Cam followers stud type truck rolle
Page 267 and 268: Thrust Roller Bearings
Page 269 and 270: Thrust roller bearings NTN Bearing
Page 271 and 272: Thrust roller bearings NTN B-209
Page 273 and 274: Thrust needle roller bearings NTN B
Page 275 and 276: Thrust needle roller bearings NTN B
Page 277 and 278: Thrust cylindrical roller bearing N
Page 283 and 284: COMPONENTS Needle Rollers/Snap Ring
Page 285 and 286: Needle rollers NTN Application of n
Page 287 and 288: Needle rollers NTN DW 4.55mm Bounda
Page 289 and 290: Snap rings NTN For shaft Type WR Be
Page 291 and 292: Snap rings NTN For housing Type BR
Page 293 and 294: Snap rings NTN Bearing numbers Boun
Page 295 and 296: Seals NTN Type G Type GD Type G Typ
Page 297 and 298: LINEAR BALL BEARINGS: Solid, Drawn
Page 299 and 300: Linear Ball Bearings NTN Components
Page 301 and 302: Linear Ball Bearings NTN Components
Page 303 and 304: Solid type linear ball bearings NTN
Page 305 and 306: Machined cup linear ball bearings N
Page 307 and 308: Linear ball bearings, stroke type N
Page 309 and 310: Machined ring linear ball bearings
Page 311 and 312: Linear flat rollers NTN Stopper Fig
Page 313: Linear flat rollers NTN Type BF Typ
Page 317 and 318: One-way Clutches Tension Pulleys, B
Page 319 and 320: One-way clutches NTN Shaft and hous
Page 321 and 322: One-way clutch miniature type NTN T
Page 323 and 324: Bottom roller bearings NTN Type FRI
Page 325 and 326: Bottom roller bearings NTN Type FRI
Page 327 and 328: Tensioner pulleys for textile machi
Page 329 and 330: Contents of Appendix Approximate co
Page 331 and 332: Appendix NTN ˚C-˚F temperature co
Page 333 and 334: C-5 Appendix NTN Standard ball Hult
Page 335 and 336: Appendix NTN Unit system Quantity P
Page 337 and 338: Appendix NTN Viscosity conversion t
Page 339 and 340: Appendix NTN Ordinary tolerance for
Page 345 and 346: Appendix NTN High Low Hig
Page 347 and 348: Appendix NTN H7 H8 H9 H10 H11 H13 J
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