Needle Roller Bearings - Ntn-snr.com

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Bottom roller bearings for textile machinery NTN Bottom Roller Bearings for Textile Machinery These bottom roller bearings for textile machinery are grease-prefilled needle roller bearings intended to support the bottom rollers (fluted rollers) of a fine spinning machine, a roving frame or a drawing frame. Type FRIS is applied to a fine spinning machine and a roving frame, and Type FR applied to a drawing frame. Types and construction Bottom roller bearing FRIS is used to support the bottom rollers of a fine spinning machine and a roving frame. The outer ring outer profile of this bearing type is spherical, which can allow, to some extent, mounting error in the bottom rollers. On the other hand, the inner ring is provided with a rib at its both ends and a clearance between the outer ring and each inner ring rib is minimized. Furthermore, the rib outer surface is knurled to prevent invasion of cotton pieces into the bearing. These bottom roller bearings are classified into internationally interchangeable A-series bearings with bearing fixing saddle (to fix a bearing to a support stand) and B-series bearings adaptable to the dimensions of JIS Fluted Rollers. A-series bearings are further classified into one bearing type (bearing number + tail code SA) wherein inner ring and outer ring are separable from one another according to saddle type and another bearing type (bearing number + tail code SB) wherein inner ring and outer ring are non-separable. Of course, these bearings can also be supplied without saddle. W) (latter two types---classified by the fixing method applied). These bearings can be supplied with saddle thereon on request, similarly to A-series. Type FR is used to support the rollers of a drawing frame. This bearing type is composed of two drawn cup type needle roller bearings which are configured in a housing. These have no inner ring and use a shaft as the direct raceway surface. Synthetic rubber seal is fitted in the both ends of the housing. This bearing type is fixed to a support stand with knock pins press-fitted in the housing. The knock pin is provided with an grease hole to enable grease replenishing. Fig. 4 Type FR Nominal bearing number Nominal bearing number comprises type code, dimension code [shaft dia. (d or Fw)] and tail code. FRIS 19 SB Tail code Dimension code Type code Fig. 1 Type FRISSA Fig. 2 Type FRISSB Fig.5 On the other hand, B-series bearings are further classified into bearing type with grease nipple (bearing number + tail code N) , bearing type with knock pin on its outer ring (bearing number + tail code P) and bearing type with knock hole on its outer ring (bearing number + Bearing fits Table 1 shows bearing fits on/in shaft and housing. Table 1 Bearing fits Bearing type FRIS FR Shaft Screwed joint Spline joint g5 (g6) j5 (j6) h5 (h6) Housing (stand) H10 H10 Fig.3 Type FRIS B-260
Bottom roller bearings NTN Type FRIS Series A (For fine spinning machine/ roving frame) Type FRIS Type FRISSA (Separable) Type FRISSB (Non-separable) d 16.525mm Boundary dimensions Basic load ratings dynamic static dynamic static mm N kgf d D B C E rs min 1) L K 0 0 0 0.010 0.050 0.120 Cr Cor Cr Cor 0 16.5 28 –0.020 19 22 23.5 0.3 22.2 7.7 10 200 14 600 1 040 1 480 19 32 0 20 23 27 0.3 22.2 7.7 11 800 18 500 1 200 1 880 36 –0.025 22 25 29 0.3 22.2 9.8 12 700 17 600 1 300 1 800 22 42 0 –0.025 25 29 35 0.3 26.4 10.2 19 500 25 300 1 980 2 580 25 45 0 –0.025 25 29 37 0.3 26.4 10.2 21 300 29 100 2 170 2 970 Note 1) Allowable minimum chamfer dimension r. B-261
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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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Thrust Roller Bearings
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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 and 314: Linear flat rollers NTN Type BF Typ
Page 315 and 316: Linear roller bearings NTN Type RLM
Page 317 and 318: One-way Clutches Tension Pulleys, B
Page 319 and 320: One-way clutches NTN Shaft and hous
Page 321: One-way clutch miniature type NTN T
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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