Drawn Cup Needle Roller Bearings

Drawn up Needle Roller Bearings NSK has introduced the most advanced bearing technology, offering unprecedented precision and reliability. Available in two types caged and full complement.

High-quality bearings that meet demanding performance standards. Drawn up Needle Roller Bearings 1. High load capacity 2. High limiting load 3. Wear resistant 4. Easy to mount High load capacity with the thinnest outer ring among High-load tolerance is made possible with a special The high-precision finished cage is surface-hardened The simplified setup process allows the roller to existing roller bearings. steel plate carefully selected by NSK. to improve wear resistance. flexibly adapt to various applications. 1 2

Drawn up Needle Roller Bearings Drawn up Needle Roller Bearings NSK drawn cup needle roller bearings (caged and full-complement types) have a unique outer ring structure including the following features: the thinnest outer ring among rolling bearings, high load capacity, high limiting load owing to the use of carefully selected special alloy steel plates, a surface-hardened and highly wear-resistant cage, high limiting speed, and ease of mounting. 1. Design and Types NSK drawn cup needle roller bearings consist of an outer The bent lip of the drawn cup, which is the outer ring, ring made of carefully selected alloy steel that is surfacehardened after precision pressing, rollers made of vacuum- functions as a labyrinth seal to prevent foreign matter from improves rigidity, holds the rollers and cage in place, and degassed bearing steel that is through-hardened and given entering and lubrication from escaping. The inside of the a grinding finish, and a cage that accurately guides the outer ring is hardened to resist wear from contact with the rollers on the pitch diameter. roller or cage. 2. Specification Number ode FJ means a metric open-type bearing with a cage Shaft dimension number Width dimension number Example (metric): FJ - 16 12 ode JH means an inch open-type bearing with a cage Shaft dimension number Width dimension number Example (inch): JH - 16 12 The bearing numbers of NSK drawn cup bearings are shown in combination with bearing codes and dimension numbers. The bearing codes are shown in Table 1. The dimension number has the following meaning: Metric Inch ategory Metric Table 1 Bearing odes ode Inch Example The first one or two numerals indicate the shaft dimension, and the next two numerals indicate the width, both expressed in mm units. The first one or two numerals indicate the shaft dimension, and the next two numerals indicate the width, both expressed in units of 1/16 of an inch. With closed ends, the number 1 is added at the end of the width dimension number. With age Assembly Standard Series FJ FJP J 3. Accuracy Although standard drawn cup needle bearings perform well for general use, higher-accuracy drawn cup needle bearings may be required, for example when: Dispersion of radial internal clearance needs to be sharply decreased Eccentric effects should be minimized The load must be shared evenly by a small number of bearings Please consult with NSK when selecting high-accuracy bearings. FJL JH High Load Series Standard Series FJH F NF Housing Bore Diameter φ 37 N7.8.33 Bearing Inscribed ircle Diameter (when pressing into ring gauge of 37.972) φ 3 +.41 +.2 Shaft Diameter φ 3 h6.13 Radial learance.15 ~.74 mm Square Mean Value.27 ~.62 Internal clearance When a drawn cup needle bearing is mounted in a housing, the radial internal clearance varies according to the bearing, shaft and housing bore tolerances. For example, the tolerances for the shaft and housing bore should be narrower when reducing the range of radial internal clearance. When the dimensional tolerance for each part is as shown in Fig. 1 (Example of F-32-1), the radial internal clearance ranges from.15 to.74 mm. Full omplement DD High Load Series FH NFH Fig. 1 Radial Internal learance 3 4

Drawn up Needle Roller Bearings Drawn up Needle Roller Bearings 4. Application to Maximize Performance Shaft and housing specifications For drawn cup needle bearings, the shaft is generally used as a substitute for the inner ring. Since the outer ring is made of thin steel plate, the correct shape and dimensional accuracy are determined after press fitting of the regular housing. Dimensional accuracy, shaft hardness, and housing bore directly affect bearing performance. Therefore, the following specifications should be satisfied: Accuracy, roughness, and hardness Accuracy, roughness, and hardness of the shaft and housing bore should satisfy the specifications shown in Table 2. Accuracy and roughness of fitting surfaces Since the raceway rings of needle bearings are extremely thin, the raceway surface is greatly affected by the accuracy of the shaft and housing. For general operating conditions, a turned finish, smooth bored finish, or reaming finish is acceptable. For high accuracy and low noise under heavy load, however, a grinding finish is required. A finish roughness of less than 1.6 µmr a is desirable. Accuracy and roughness of the raceway surface The shaft is often used as the raceway surface of needle bearings in order to achieve the most compact bearing design and enhance shaft rigidity, load capacity, and accuracy. In this case, accuracy and roughness of the raceway surface greatly affects the life, noise, and accuracy of bearings. Therefore, shape, accuracy, and roughness have to be treated with great care. In particular, harmful circumferential waviness and a polygonal shape are not desirable. Accuracy and roughness for raceway surfaces are shown in Table 2. Since these values may change depending on desired performance, please consult NSK. Table 2 Accuracy, Roughness and Hardness ategory Shaft Housing Bore Out-of-Roundness IT3 IT4 ~ IT5 Tolerance 2 2 2 ylindricity IT3 IT4 ~ IT5 Tolerance 2 2 2 Roughness, R a Hardness Housing rigidity.4 1.6 HR58~64 Proper depth of hardening layer required Shaft inclination Shaft inclination due to deflection by an external force and mounting error of the bearing should be within the values found in Table 3. Material and heat treatment of raceway furnace The raceway rings and rollers of needle bearings are repeatedly stressed on their relatively small contact surfaces. The materials for raceway rings, rollers, and shafts and housings that function as raceways, must therefore have high hardness, resistance to permanent deformation, and long rolling fatigue life. These materials are also required to be resistant to wear and shock, and have good dimensional stability. ommon materials used for shafts and housings that function as bearing raceways include the following: High-carbon chromium bearing steel (for through hardening) SUJ2 (JIS G 485) arbon steel for machine construction (for carbonizing) S15K (JIS G 451) hrome molybdenum steel (for carbonizing) SM415~421 (JIS G 415) hrome steel (for carbonizing) Sr415, 42 (JIS G 414) Nickel chrome steel (for carbonizing) SN415~815 (JIS G 412) Nickel chrome molybdenum steel (for carbonizing) SNM22, 415, 42 (JIS G 413) JIS: Japanese Industrial Standard Other materials, such as S5 and S55, can be utilized with through hardening or induction hardening. The hardened layer, which is tempered at 16 to 18 after hardening, has to develop a martensite structure with an even distribution of very fine carbides. In the case of cemented or induction hardening of the raceway surface, the surface hardness should not only be HR58 to 64 (HR6 to 64 is preferable), but also the hardened layers with Vickers hardness of HV 653 (HR58) and HV55 (HR52.3) have to reach appropriate depths. When the values of hardness are below these values, bearing fatigue life significantly decreases. The hardened layer depth (up to HV55) after grinding finish is estimated by using the following equation: t (.8~.1) D w where, t: Effective hardened layer depth (mm) D w : Roller diameter (mm) ore hardness is generally HR3 to 45. Table 3 Shaft Inclination Bearing Width (mm) Permissible Inclination (mm/mm) over incl. With age Full omplement 25.15.1 25 5.1.5 5.5.5 To maintain the accuracy of drawn cup needle bearings, it is necessary to design the housing thick enough to minimize deformation when load is applied. Split housings can only be used with drawn cup needle bearings after press fitting the bearing into a cylindrical sleeve. 5. Adjustment of Fitting Drawn cup needle bearings perform as designed only after proper fitting. It is necessary to use the fitting tolerances shown in Table 4 for the shaft and housing bore. The figures in Table 4 are for fittings when housing materials are rigid steel or cast iron. The fit should be adjusted as follows in accordance with operating conditions: (1) Oscillating motion (3) The housing is made from light alloy or steel with In order to reduce radial internal clearance, the shaft s a thickness of less than 6 mm. fitting tolerance should be js6 (j6). The fitting tolerances of the housing bore should be (2) Outer ring rotation minimized to approximately.13 to.25 mm, For metric bearings, the fitting tolerances of the shaft provided that the optimized value should be determined and housing bore should be f6 and R7, respectively. by mounting into the actual housing, as the optimized value may vary depending on housing material and shape. Please contact NSK for details. Table 4 Recommended Fits Fitting Tolerance ategory Shaft Housing Bore F, FJ h6 N7 Metric FJL h6 J7 Nominal Outside Diameter D, mm Tolerance, mm B, BH over incl. high low Inch J, JH h6 7.144 ( 9 / 32 ) +.13 Y, YH 7.144 ( 9 / 32 ) 8.731 ( 11 / 32 ).13 8.731 ( 11 / 32 ) J7 15 Locating Stopper A Recommended Jig Dimensions Marked Side of Bearing D A = Housing Bore Diameter -.4 mm E B = Shaft Diameter -.8 mm =.25 mm (min.) B D = Bearing Width -.8 mm E = Approximately 1/2 D Fig. 2 Example of Jig 5. Mounting Precautions When a drawn cup needle roller bearing is pressed into a housing bore, it is necessary to use an appropriate jig to prevent deformation of, and damage to, the outer ring, as shown in Fig. 2. (1) The marked-side face should be placed onto the shoulder of the jig. (2) A hand press should be used for press fitting. Avoid using a hammer or other such instruments. (3) Use of a snap ring or shoulder to determine the position of the bearing is not necessary. However, when using a housing with a shoulder, the bearing side face should not touch the shoulder in order to prevent bearing deformation. (4) The guide and locating stopper shown in Fig. 2 are installed in order to apply press fitting accurately. The ball shown in Fig. 2 helps the jig hold the bearing and prevent roller inclination while facilitating mounting work. 5 6

Drawn up Needle Roller Bearings Drawn up Needle Roller Bearings 7. Inspection of Bearings Deformation, to a certain degree, due to heat treatment is inevitable, even though the outer ring of the drawn cup needle bearings is processed by precise deep drawing. However, once the bearing is pressed into the regular housing, this deformation is corrected and the bearing performs to its full potential. Therefore, it is not appropriate to measure the drawn cup outside diameter before mounting. orrect inspection is carried out according to the following procedures: (1) The bearing that is to be subject to testing is pressed into a ring gauge of given dimensions. (2) The inscribed circle diameter at the GO and NO-GO plug gauges is inspected. Table 5 Inspection Gauge Dimensions (General Metric) Table 6 Ring Gauge of Drawn up Needle Roller Bearings and Tolerance of Roller Inscribed ircle Diameter Units: mm (ISO Standards) Units: mm Metric inspection gauge dimensions are shown in Table 5. Table 6 shows tolerance for the roller inscribed circle diameter based on ISO standards. For bearings based on ISO standards, 1 is added at the end of the bearing number. Table 7 shows inch inspection gauge dimensions. Table 7 Inspection Gauge Dimensional Table (Inch) Units: mm Units: mm Nominal Roller Inscribed ircle Diameter, F w Bore Diameter of Ring Gauge F, FH, NF, NFH FJL FJ Plug Gauge Nominal Roller Inscribed ircle Diameter, F w Bore Diameter of Ring Gauge Tolerance for Roller Inscribed ircle Diameter, F w ( 1 ) GO Gauge NO-GO FJ, FJH, Gauge F, FH min max Nominal Roller Inscribed ircle Diameter, F w Bore Diameter of Ring Gauge JP GO Gauge Plug Gauge NO-GO Gauge Nominal Roller Inscribed ircle Diameter, F w Bore Diameter of Ring Gauge JH GO Gauge Plug Gauge NO-GO Gauge 4 7.996 4.23 4.48 3 6.484 3.7 3.21 3.175 ( 1 / 8 ) 6.363 3.195 3.22 7.938 ( 5 / 16 ) 14.3 7.976 8.1 5 8.996 5.23 5.48 4 7.984 4.1 4.28 3.969 ( 5 / 32 ) 7.155 3.99 4.15 9.525 ( 3 / 8 ) 15.888 9.563 9.588 6 9.996 6.28 6.53 5 8.984 5.1 5.28 4.762 ( 3 / 16 ) 8.73 4.783 4.88 11.112 ( 7 / 16 ) 17.475 11.151 11.176 7 1.995 7.31 7.56 6 9.984 6.1 6.28 6.35 ( 1 / 4 ) 11.125 6.388 6.413 12.7 ( 1 / 2 ) 19.63 12.738 12.763 8 11.995 15.1 8.31 8.56 7 1.98 7.13 7.31 7.938 ( 5 / 16 ) 12.713 7.976 8.1 14.288 ( 9 / 16 ) 2.65 14.326 14.351 9 12.995 16.1 9.31 9.56 8 11.98 8.13 8.31 9.525 ( 3 / 8 ) 14.3 9.563 9.588 15.875 ( 5 / 8 ) 22.238 15.913 15.938 1 13.995 17.1 1.31 1.56 H8 13.98 8.13 8.31 11.112 ( 7 / 16 ) 15.888 11.151 11.176 17.462 ( 11 / 16 ) 23.825 17.51 17.526 12 15.995 19.12 12.31 12.56 9 12.98 9.13 9.31 12.7 ( 1 / 2 ) 17.475 12.738 12.763 19.5 ( 3 / 4 ) 26.975 19.63 19.88 FH12 17.995 12.31 12.56 H9 14.98 9.13 9.31 14.288 ( 9 / 16 ) 19.63 14.326 14.351 2.638 ( 13 / 16 ) 28.562 2.65 2.675 13 18.993 13.34 13.59 1 13.98 1.13 1.31 15.875 ( 5 / 8 ) 2.65 15.913 15.938 22.225 ( 7 / 8 ) 3.15 22.238 22.263 14 19.993 22.12 14.34 14.59 H1 15.98 1.13 1.31 17.462 ( 11 / 16 ) 22.238 17.51 17.526 25.4 (1) 33.325 25.413 25.438 NF14 18.993 14.34 14.59 12 15.98 12.16 12.34 19.5 ( 3 / 4 ) 25.387 19.63 19.88 28.575 (1 1 / 8 ) 38.87 28.588 28.613 15 2.993 22.12 15.34 15.59 H12 17.98 12.16 12.34 2.638 ( 13 / 16 ) 26.975 2.65 2.675 31.75 (1 1 / 4 ) 41.262 31.763 31.788 16 21.993 24.12 16.34 16.95 13 18.976 13.16 13.34 22.225 ( 7 / 8 ) 28.562 22.238 22.263 34.925 (1 3 / 8 ) 44.437 34.938 34.966 17 22.972 23.991 17.13 17.38 14 19.976 14.16 14.34 23.812 ( 15 / 16 ) 3.15 23.825 23.85 18 23.972 24.991 18.13 18.38 15 2.976 15.16 15.34 25.4 (1) 31.737 25.413 25.438 2 25.972 26.991 2.13 2.38 16 21.976 16.16 16.34 26.988 (1 1 / 16 ) 33.325 27. 27.25 22 27.972 28.991 22.13 22.38 17 22.976 17.16 17.34 28.575 (1 1 / 8 ) 34.912 28.588 28.613 NFH22 3.987 24.15 24.35 18 23.976 18.16 18.34 3.162 (1 3 / 16 ) 38.87 3.175 3.2 24 3.989 24.13 24.38 2 25.976 2.2 2.41 31.75 (1 1 / 4 ) 38.87 31.763 31.788 NFH24 31.967 24.13 24.38 22 27.976 22.2 22.41 33.338 (1 5 / 16 ) 41.262 33.35 33.378 25 31.967 32.989 25.13 25.38 25 31.972 25.2 25.41 34.925 (1 3 / 8 ) 41.262 34.938 34.966 28 34.967 36.989 28.13 28.38 28 34.972 28.2 28.41 38.1 (1 1 / 2 ) 47.612 38.113 38.143 3 36.967 39.989 3.13 3.38 3 36.972 3.2 3.41 41.275 (1 5 / 8 ) 5.787 41.288 41.318 32 41.989 32.13 32.38 35 41.972 35.25 35.5 44.45 (1 3 / 4 ) 53.962 44.463 44.496 35 41.967 44.989 35.13 35.43 4 46.972 4.25 4.5 47.625 (1 7 / 8 ) 57.137 47.638 47.671 4 46.967 49.989 4.13 4.43 45 51.967 45.25 45.5 5.8 (2) 6.312 5.815 5.848 45 51.961 54.988 45.13 45.43 5 57.967 5.25 5.5 5 57.961 61.988 5.13 5.43 55 62.967 55.3 55.6 7 55 62.961 66.988 55.13 55.43 Remarks This is the gauge dimension for inspection of minimum diameter, F w, of roller inscribed circle diameter. Note ( 1 ) When using a cylinder instead of an inner ring, F wmin is the diameter of the cylinder at which the internal clearance is zero in at least one radial direction. (F wmin is the minimum diameter of each inscribed circle diameter where deviation is suspected.) Remarks To measure the roller inscribed circle diameter, use the following plug gauges: GO gauge: The same dimensions as the minimum tolerance of the roller inscribed circle diameter, F w NO-GO gauge: The dimensions should be the maximum tolerance of roller inscribed circle diameter, F w, plus.2 mm 8

Drawn up Needle Roller Bearings Drawn up Needle Roller Bearings aged Inscribed ircle Diameter 3~16 mm ➃ ➅ ➇.25 r P max FJP-36 3 6.5 6 1 23 465 ➇ FJP-48 4 8 8 1 72 675 ➇ J-36 4.762 8.731 9.52 2 29 97 ➃ FJ-58L 5 9 8 1 55 585 ➅ FJ-59 5 9 9 1 86 745 ➃ FJ-69W 6 1 9 2 32 985 ➃ FJ-69 6 1 9 2 32 985 ➃ DB563 6 11.5 1.3 2 97 1 3 ➅ J-47 6.35 11.112 11.13 3 3 1 43 ➃ FJ-79 7 11 9 2 55 1 11 ➃ J-55 7.938 12.7 7.92 2 3 95 ➃ J-57 7.938 12.7 11.13 3 9 1 79 ➃ JH-57 7.938 14.288 11.13 4 7 1 95 ➃ FJ-88-2 8 12 8 2 58 1 15 ➅ DB581 8 12 9.5 2 84 1 27 ➃ FJ-81W 8 12 1 2 84 1 27 ➃ FJ-81 8 12 1 2 84 1 27 ➅ FJL-81 8 15 1 4 4 1 77 ➅ FJL-815 8 15 15 7 1 3 25 ➅ FJL-82 8 15 2 1 1 5 1 ➅ FJ-91 9 13 1 3 3 1 6 ➅ FJL-916 9 16 16 7 8 3 65 ➅ J-65A 9.525 14.288 7.92 2 63 1 8 ➅ J-65 9.525 14.288 7.92 2 62 1 8 ➅ J-68 9.525 14.288 12.7 5 25 2 64 ➅ FJ-11W 1 14 1 3 5 1 76 ➃ FJ-11WA 1 14 1 3 5 1 76 ➃ FJ-11 1 14 1 3 5 1 76 ➃ FJ-115L 1 14 15 5 55 3 15 ➅ FJL-11 1 17 1 4 9 1 99 ➃ FJL-112L 1 17 12 5 7 2 41 ➅ FJL-115 1 17 15 7 85 3 65 ➃ FJL-12 1 17 2 11 2 5 75 ➃ J-78 11.112 15.875 12.7 5 8 3 1 ➃.25 r P max JH-78 11.112 17.462 12.7 7 15 3 3 ➃ FJ-121 12 16 1 4 15 2 21 ➃ FJ-121W 12 16 1 4 15 2 21 ➃ FJH-1212 12 18 12 6 45 3 5 ➃ FJH-1212W 12 18 12 6 45 3 5 ➃ FJL-1212L 12 19 12 6 65 2 95 ➅ FJL-1215 12 19 15 9 2 4 5 ➃ FJL-122 12 19 2 13 7 5 ➃ FJL-1225L 12 19 25 16 6 9 55 ➅ J-85 12.7 17.462 7.92 3 15 1 44 ➃ JH-88 12.7 19.5 12.7 7 6 3 6 ➃ JH-812 12.7 19.5 19.5 12 4 6 8 ➃ FJ-1312 13 19 12 6 95 3 4 ➃ DB5133W 13 19 24 13 8 8 15 ➅ FJ-1412 14 2 12 6 5 3 25 ➃ FJ-1416 14 2 16 9 5 5 3 ➃ FJL-1416 14 22 16 11 6 5 7 ➃ J-98 14.288 19.5 12.7 6 25 3 55 ➃ JH-98 14.288 2.638 12.7 8 5 3 95 ➃ FJ-151 15 21 1 585 2 78 ➃ FJ-1512 15 21 12 7 65 3 9 ➃ FJ-1512W 15 21 12 7 65 3 9 ➃ FJ-1516 15 21 16 11 6 2 ➃ FJL-151L 15 22 1 6 45 2 88 ➅ FJL-1512L 15 22 12 7 45 3 5 ➅ FJL-1515 15 22 15 1 3 5 3 ➃ FJL-152 15 22 2 14 7 8 3 ➃ FJL-1525L 15 22 25 18 7 11 3 ➅ J-18 15.875 2.638 12.7 6 75 3 95 ➃ J-11 15.875 2.638 15.88 8 85 5 6 ➃ JH-11 15.875 22.225 15.88 11 6 6 4 ➃ JH-116 15.875 22.225 25.4 19 9 12 8 ➃ FJ-1612 16 22 12 7 1 3 75 ➃ FJ-1616 16 22 16 1 4 6 5 ➃ 9 1

Drawn up Needle Roller Bearings Drawn up Needle Roller Bearings aged Inscribed ircle Diameter 16~28 mm ➃ ➅ ➆ ➇.25 r P max DB51613W 16 22 2 12 5 7 7 ➅ FJL-1616L 16 24 16 13 1 6 7 ➅ FJL-162L 16 24 2 17 1 9 5 ➅ DB5168W 16.1 21.96 13.5 6 7 3 35 ➆ DBP5172 17 2 9.7 2 73 1 72 ➇ FJ-1712 17 23 12 8 45 4 45 ➃ FJ-1716 17 23 16 12 1 7 1 ➃ FJL-1715 17 24 15 1 8 5 7 ➃ FJL-172L 17 24 2 15 4 8 95 ➅ FJL-1725L 17 24 25 19 6 12 2 ➅ JH-111 17.462 23.812 15.88 12 1 6 85 ➃ JH-1112 17.462 23.812 19.5 15 9 ➃ DB5181 18 23 9.5 5 5 2 82 ➅ DB5181W 18 23.6 13.5 8 75 5 1 ➅ FJ-1812 18 24 12 7 65 4 2 ➃ FJ-1816 18 24 16 11 2 6 8 ➃ FJL-1813 18 25 13 9 3 4 7 ➃ FJL-1815 18 25 15 11 4 6 1 ➃ FJL-1817L 18 25 17 13 3 7 5 ➅ FJL-182 18 25 2 16 1 9 6 ➃ FJL-1825 18 25 25 2 5 13 1 ➃ J-128 19.5 25.4 12.7 1 5 45 ➃ J-121 19.5 25.4 15.88 12 6 7 25 ➃ J-1212 19.5 25.4 19.5 15 6 9 6 ➃ FJ-212 2 26 12 8 15 4 65 ➃ FJ-216 2 26 16 11 9 7 55 ➃ DB525A 2 26 18 13 8 9 2 ➅ FJ-22W 2 26 2 15 3 1 5 ➃ FJ-22 2 26 2 15 3 1 5 ➃ FJL-215L 2 27 15 12 3 6 9 ➅ FJL-22 2 27 2 17 5 1 9 ➃ FJL-225L 2 27 25 22 3 14 8 ➅ FJL-225LW 2 27 25 22 7 15 1 ➅ FJL-23L 2 27 3 26 8 18 7 ➅ Load Ratings (N).25 r P max FJL-221L 22 29 1 7 95 4 ➅ FJ-2212 22 28 12 8 65 5 15 ➃ FJ-2212W 22 28 12 8 65 5 15 ➃ FJ-2216 22 28 16 12 6 8 35 ➃ FJ-222 22 28 2 16 2 11 5 ➃ FJL-222L 22 29 2 18 1 11 5 ➅ FJL-2225L 22 29 25 23 15 7 ➅ FJL-223L 22 29 3 27 7 19 8 ➅ DB5221 22 29 3 27 1 19 4 ➅ JH-1416 22.225 3.162 25.4 25 5 16 7 ➃ DB5237W 23 3 16 15 9 5 ➅ DB5245W 24 3 2.5 15 1 11 ➅ FJ-2516 25 32 16 15 2 9 35 ➃ DB5259W 25 32 16 15 2 9 35 ➅ FJ-252W 25 32 2 19 8 13 1 ➃ FJ-252W 25 32 2 19 8 13 1 ➃ FJ-252 25 32 2 19 8 13 1 ➃ FJ-2526 25 32 26 26 2 18 8 ➃ FJL-251 25 33 1 8 8 4 3 ➃ FJL-2515 25 33 15 15 4 8 8 ➃ FJL-2515L 25 33 15 15 4 8 8 ➅ FJL-252 25 33 2 21 9 13 9 ➃ FJL-2525L 25 33 25 28 19 ➅ DB52514W 25 33 33 32 23 ➅ FJL-253 25 33 3 33 5 24 1 ➃ JH-1612 25.4 33.338 19.5 2 8 13 ➃ JH-1616 25.4 33.338 25.4 27 7 18 9 ➃ DB52519W 25.5 3.545 13 9 85 6 9 ➅ DB52713W 27 32 16 11 2 8 3 ➅ DB52822W 28 33 13 8 25 5 6 ➅ FJ-2816 28 35 16 15 6 9 95 ➃ FJ-2816WA 28 35 16 15 6 9 95 ➃ FJ-282 28 35 2 2 5 14 2 ➃ FJ-282W 28 35 2 2 5 14 2 ➃ 11 12

Drawn up Needle Roller Bearings Drawn up Needle Roller Bearings aged Inscribed ircle Diameter 28~43.7 mm ➃ ➄ ➅ ➆.25 r P max FJ-2826 28 35 26 26 9 2 2 ➃ DB52821W 28 36 16 17 9 11 2 ➄ FJL-282L 28 37 2 25 4 15 5 ➅ DB5281 28 37 2 25 4 15 5 ➅ J-188 28.575 34.925 12.7 11 7 7 25 ➃ J-1812 28.575 34.925 19.5 19 1 13 6 ➃ JH-1812 28.575 38.1 19.5 23 5 14 ➃ JH-1816 28.575 38.1 25.4 32 2 7 ➃ FJ-32 3 37 2 19 4 13 3 ➃ DB5311 3 37 2 19 4 13 3 ➅ DB5315W 3 37 22 23 5 17 1 ➅ FJ-326 3 37 26 26 19 5 ➃ FJL-325L 3 4 25 33 5 21 6 ➅ DB531 3 42 2 3 16 7 ➅ FJ-316L 3 37 16 15 6 1 1 ➅ FJ-32 3 37 2 19 4 13 3 ➃ FJL-315L 3 4 15 17 2 9 1 ➅ FJL-32L 3 4 2 25 8 15 3 ➅ FJL-33L 3 4 3 41 27 8 ➅ DB5312WA 3.1 35.5 12 9 5 6 45 ➅ DB5318W 31.5 36.5 12 9 5 6 95 ➅ J-212 31.75 38.1 19.5 19 9 14 7 ➃ J-216 31.75 38.1 25.4 27 4 22 1 ➃ DB5312A 31.75 41.275 19.5 24 2 14 9 ➅ JH-216 31.75 41.275 25.4 34 23 2 ➃ DB5327W 32 39 2 22 3 16 6 ➅ DB53212W 32 4 16 15 6 9 55 ➅ FJL-322 32 42 2 26 7 16 2 ➃ FJL-323 32 42 3 42 5 29 4 ➃ DBP5323 32.5 35.5 15 6 35 6 2 ➇ DB5337W 33 38 12 1 1 7 65 ➅ DB5333 33 39 26 22 8 19 7 ➅ DB5335 33 41.4 2 22 3 14 8 ➅ J-228 34.925 41.275 12.7 12 4 8 15 ➃.25 r P max DB53522W 35 4.5 26 23 5 21 5 ➅ FJ-3512 35 42 12 12 7 55 ➃ FJ-352 35 42 2 23 6 17 9 ➃ DB5351AW-1 35 42 24 27 2 22 8 ➃ DB5355 35 42 26 31 5 25 8 ➃ FJ-3526 35 42 26 31 5 25 8 ➃ FJ-3526-OH 35 42 26 31 5 25 8 ➃ FJL-3512 35 45 12 13 2 6 65 ➃ FJL-3515 35 45 15 18 2 1 1 ➃ FJ-3516 35 42 16 18 1 12 8 ➃ FJ-352 35 42 2 23 6 17 9 ➃ DB53523W 35 45 16 23 13 6 ➄ DB5358A 35 45 18 25 7 15 7 ➅ DB5354 35 45 18 25 7 15 7 ➅ FJL-352L 35 45 2 27 4 17 ➅ FJL-3525L 35 45 25 36 24 ➅ FJL-353L 35 45 3 43 5 31 ➅ DB5375W 37.2 43.2 15.3 15 6 12 1 ➅ DB5381 38.1 52.388 25.4 48 28 3 ➅ J-2412 38.1 47.625 19.5 28 5 19 ➃ J-242 38.1 47.625 31.75 49 5 39 ➃ DB5391 39 45 12 6 5 4 2 ➅ DB5393W 39 45 12 1 8 8 2 ➅ DB543WA 4 47 12 12 4 8 1 ➅ FJ-42W 4 47 2 23 5 18 5 ➃ FJL-415L 4 5 15 19 9 11 6 ➅ FJ-416 4 47 16 18 6 13 6 ➃ FJ-42 4 47 2 23 5 18 5 ➃ FJ-426 4 47 26 31 5 26 9 ➃ FJL-42L 4 5 2 29 9 19 6 ➅ FJL-425L 4 5 25 39 27 6 ➅ FJL-43L 4 5 3 47 5 35 5 ➅ DB5415W 41.5 47.5 14.5 16 2 12 9 ➅ DB5434W 43.7 5.7 13.5 12 5 8 45 ➆ 13 14

Drawn up Needle Roller Bearings Drawn up Needle Roller Bearings aged Inscribed ircle Diameter 44.45~82 mm ➃ ➅ Full omplement Inscribed ircle Diameter 4~17 mm ➀ ➁.25 r P max J-2816 44.45 53.975 25.4 4 31 ➃ J-2824 44.45 53.975 38.1 6 52 ➃ FJ-4516 45 52 16 19 9 15 4 ➃ FJ-452 45 52 2 25 5 21 2 ➃ FJ-4526 45 52 26 34 3 5 ➃ FJL-452L 45 55 2 31 21 3 ➅ FJL-4525L 45 55 25 45 3 ➅ FJL-453L 45 55 3 49 5 38 5 ➅ DB5451 45 55 3 49 5 38 5 ➅ DB5466WA 46.5 51.5 9.5 8 6 3 ➅ DB5491W 49 55 14 13 2 1 5 ➅ DB557 5 58 16 22 5 17 2 ➅ FJ-52L 5 58 2 28 9 23 1 ➅ FJL-512L 5 62 12 21 2 11 6 ➅ FJL-52L 5 62 2 27 23 7 ➅ FJL-53L 5 62 3 59 5 43 5 ➅ J-3216 5.8 6.325 25.4 42 5 34 5 ➃ DB5512A 51 57 12 12 6 1 ➅ DB5551 55 61 12 9 9 8 5 ➅ DB5551A 55 61 12 9 9 8 5 ➅ FJ-552 55 63 2 3 25 1 ➃ FJ-5524 55 63 24 37 5 33 5 ➃ DB5554W 55 63 24 37 33 5 ➅ FJL-553L 55 67 3 62 5 47 5 ➅ FJL-554L 55 67 4 81 5 67 ➅ DB5555W 55.5 63.5 14.5 21 8 17 1 ➅ DB5571 57.15 76.2 32 94 61 ➅ DB5583W 58 66 3 47 46 5 ➅ DB5821 82 88 12 9 4 9 4 ➅.25 r P max DD541 4 8 6 2 24 1 15 ➁ F-48 4 8 8 2 47 1 3 ➀ F-58 5 9 8 2 79 1 52 ➀ F-59 5 9 9 3 25 1 86 ➀ F-68 6 1 8 3 15 1 78 ➀ F-69 6 1 9 3 7 2 17 ➀ DD571 7 11 7.5 4 1 2 48 ➁ F-79 7 11 9 4 1 2 48 ➀ F-88 8 12 8 3 85 2 28 ➀ F-81 8 12 1 5 3 2 ➀ F-812 8 12 12 6 2 4 2 ➀ F-91 9 13 1 5 4 3 65 ➀ F-11 1 14 1 5 8 4 5 ➀ F-11-B 1 14 1 5 8 4 5 ➀ F-11-1 1 16 1 6 65 3 7 ➀ F-121 12 16 1 6 45 4 7 ➀ F-1212 12 16 12 7 95 6 2 ➀ FH-1212 12 18 12 9 5 7 ➀ F-1312 13 19 12 9 55 6 1 ➀ NF-1416 14 19 16 12 9 1 4 ➀ NF-142 14 19 2 16 1 13 8 ➀ F-1412 14 2 12 9 45 6 35 ➀ F-1413 14 2 13 1 4 7 2 ➀ F-1416 14 2 16 13 3 9 85 ➀ F-1512 15 21 12 1 3 6 9 ➀ F-151 15 21 1 8 5 5 ➀ F-1514 15 21 14 12 4 8 8 ➀ F-1516 15 21 16 14 5 1 7 ➀ D5161 16 22 12 1 2 7 1 ➀ DD5162 16 22 19 18 9 15 7 ➁ F-1612 16 22 12 1 2 7 1 ➀ F-1616 16 22 16 14 4 11 1 ➀ F-172 17 23 2 2 2 1 3 ➀ F-1712 17 23 12 11 3 7 75 ➀ 15 16

Drawn up Needle Roller Bearings Drawn up Needle Roller Bearings Full omplement Inscribed ircle Diameter 17~45 mm ➀ ➁ ➂.25 r P max F-1716 17 23 16 15 8 12 ➀ F-1812 18 24 12 1 9 7 9 ➀ F-1816 18 24 16 15 3 12 3 ➀ F-1816-OH 18 24 16 15 3 12 3 ➀ DD5183 18.75 32 6.35 1 6 4 8 ➁ DD5188 18.75 32 9.35 16 9 8 8 ➁ DD5194 19 26 15 14 8 1 8 ➂ F-212 2 26 12 11 5 8 7 ➀ F-216 2 26 16 16 2 13 5 ➀ DD522 2 26 16 18 15 5 ➁ F-22 2 26 2 2 5 18 3 ➀ DD524A 2 26 2 22 3 2 4 ➁ D528 2 27 22 24 7 2 4 ➀ F-221 22 28 1 9 4 6 85 ➀ F-2212 22 28 12 12 1 9 5 ➀ F-2216 22 28 16 17 1 14 8 ➀ DD5221A 22 28 16 19 16 9 ➁ F-222 22 28 2 21 6 2 ➀ NFH-222A1 24 31 25 31 5 28 7 ➀ NFH-222A 24 31 25 31 5 28 7 ➀ F-2516 25 32 16 2 2 16 2 ➀ F-252 25 32 2 25 9 22 2 ➀ F-2526 25 32 26 34 31 5 ➀ F-2816 28 35 16 21 3 17 9 ➀ F-282 28 35 2 27 3 24 6 ➀ D5287 28 35 26 35 5 34 5 ➀ F-2826 28 35 26 35 5 34 5 ➀ F-314 3 37 14 18 9 15 5 ➀ F-32 3 37 2 28 4 26 2 ➀ F-326 3 37 26 37 37 ➀ F-326-OH 3 37 26 37 37 ➀ F-326R 3 37 26 37 37 ➀ DD5321 32.6 41 7 1 6 6 75 ➁ F-3512 35 42 12 16 9 14 ➀.25 r P max F-3516 35 42 16 24 22 ➀ F-352 35 42 2 31 3 ➀ D5354 35 42 2 1 6 86 5 ➀ FY-352 35 42 2 34 5 35 ➁ F-3526 35 42 26 4 42 5 ➀ F-416 4 47 16 25 7 24 9 ➀ F-42 4 47 2 32 5 34 ➀ F-426 4 47 26 43 48 ➀ F-4516 45 52 16 27 3 27 8 ➀ F-452 45 52 2 35 38 5 ➀ F-4526 45 52 26 45 5 54 ➀ 17 18