High Axial Load Capacity, High speed, Long life Spheical Rolle eaings
Spheical Rolle eaings High axial esistance load pefomance Intenal specifications have been optimized to geatly impove axial esistance load pefomance. Low tempeatue ise and highe pemissible otation Heat geneation of the beaing has been educed by stabilizing the olle movement duing otation, ealizing the wold's highest pemissible otation. Long life Long life has been ealized by optimized intenal specifications and using high cleanliness steel. Sevice tempeatue of C Standadized heat stabilization teatment and sevice tempeatue up to C. High impact esistance pefomance (Q-V specifications) The Q-V specifications ae available, which have geatly impoved impact esistance pefomance of a stamped steel cage by applying a special suface heat teatment. Dimension accuacy and adial intenal cleaance of the Q-V ae special specifications fo vibating applications. Taget ange: see the Dimension Table. Oute & Inne ings Capable of continuous opeating tempeatues up to C by standadized heat stabilization teatment. Axial load caying capability has been impoved by optimizing the cuvatue of the aceway pofile. Longe beaing life has also been achieved. Rolles Axial load caying capability has been impoved by optimizing the cuvatue of the olling contact suface. Longe beaing life has also been achieved. Floating guide ing Povided with a floating guide ing to contol the olle movement. Cages 1 Povided with a high-stength, high-igidity steel pessed cage to enclose the entie olle. Impact esistance pefomance has been geatly impoved by special suface hadening teatment (Q-V specifications)
Spheical Rolle eaings Configuation of beaing numbe 2220 Q W -V C Cleaance symbols Intenal symbols Oil hole and goove symbols No symbols -V No symbols W20 W Standad types Vibation-esistance specifications Without oil hole o goove With oil hole With oil hole and goove Axial-load-capacity and high-speed specifications High-load-capacity specifications asic numbes Pecautions fo use When using unde an opeating condition with an axial, it is desiable to ensue Fa/F 0.. When using unde an opeating condition of Fa/F > 0., consult NACHI. When using unde a fluctuating load condition o at high otating speed, consult NACHI in advance. If otated unde no load, skidding may occu between the olle and aceway, damaging the beaing. To pevent this condition, a adial load of 0.01 C must be applied. Unde geneal sevice conditions, it is pemissible to opeate with up to a 2 misalignment angle θ. This can vay slightly depending on the dimension seies and opeating conditions. Fo veification of a specific opeating condition, please consult NACHI. Note also that thee may be estictions depending on the machine stuctue aound the beaing. θ θ 2
eaing numbe Pemissible otating speed (min -1 ) Main dimensions (mm) 2 2 72 72 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 10 D 20.0 1.0 2.0 2 2.0 2.0.0 2.0 2.0.0 2.0 27.0 0.0 2.0 2.0.0 2.0.0.0.0.0 7.0.0.0..0.0.0.2 0.0 0.0 2..0.0.0..0 7.0 1. 1. 1. 1. 1. 1. 1. 1. 1. 1..0.0.0.0.0.0 (min.) 2220Q 2220Q 2Q 22207Q 27Q 2220Q 2Q 220Q 2220Q 2Q 220Q 222Q 20Q 22Q 222Q 21Q 22Q 222Q 22Q 22Q 2221Q 2Q 221Q 2221Q 2Q 221Q 2221Q 2Q 221Q 2221Q 221Q 2Q 221Q 22217Q 2217Q 27Q 2217Q 2221Q 221Q 2Q 221Q 2221Q 221Q 2Q 221Q Cylindical boe (Note) asic dynamic load ating C(N),000,00,000,000 1,000 1,000 1,000,000 20,000 1 17,000 20,000 171,000,000 0,000 270,000 1,000 27,000,000 0,000 0,000 0,000,000 0,000,000,000,000 1,000,000,000 70,000 0,000 7,000,000 00,000 00,000 1,000 asic static load ating Co(N),000,000 2,00,00 7,000,00,000 0,000 1 1,000 1,000 1,000 17,000 1,000 0,000 20,000 2,000 220,000 20,000 1,000 7,000,000,000 20,000 20,000 0,000 7,000 7,000,000 0,000 20,000,000 1,000 7 2220QK 2220QK 2QK 22207QK 27QK 2220QK 2QK 220QK 2220QK 2QK 220QK 222QK 20QK 22QK 222QK 21QK 22QK 222QK 22QK 22QK 2221QK 2QK 221QK 2221QK 2QK 221QK 2221QK 2QK 221QK 2221QK 221QK 2QK 221QK 22217QK 2217QK 27QK 2217QK 2221QK 221QK 2QK 221QK 2221QK 221QK 2QK 221QK Tapeed boe,00,00,00,00 7,700 7,00,00,00,00,00,000,,000,700,00,000,,00,,000,700,000,00,00,00,00,00,00,0,000,00,00 2,00,700,00,00 2,00,00,00,0 2,00,00,0,000 2,00 Gease lubication 1,700,00,000,000,00,00 7,00 7,000 7,00,00,00 7,00,00,00 7,000,00,000,00,000,700,00,700,,00,,000,00,,00,700,00,000,00,00,00,,00,,00,00,,000,00,00,000 Oil lubication 2 0 0 0 0 70 7 0 0 d Oil holes and oil gooves (W) A N-φdu Cylindical boe φd φd Tapeed boe φd φd (Note) The Q-V specifications ae also available fo the blue-coloed beaing numbes.
Mass (kg) Cylindical boe (Refeence) 0.1 0.0 0. 0. 0.7 0. 0.7 7 0.1 0. 1. 1.2 0. 1.70 2.0 1.20 0.0 1. 2.0.7 1... 1.7.0. 2..0.2 2.7.7.0 7..0.7..2.2. 7..2 eaing numbe 2220Q 2220Q 2Q 22207Q 27Q 2220Q 2Q 220Q 2220Q 2Q 220Q 222Q 20Q 22Q 222Q 21Q 22Q 222Q 22Q 22Q 2221Q 2Q 221Q 2221Q 2Q 221Q 2221Q 2Q 221Q 2221Q 221Q 2Q 221Q 22217Q 2217Q 27Q 2217Q 2221Q 221Q 2Q 221Q 2221Q 221Q 2Q 221Q Cylindical boe (Note) 2220QK 2220QK 2QK 22207QK 27QK 2220QK 2QK 220QK 2220QK 2QK 220QK 222QK 20QK 22QK 222QK 21QK 22QK 222QK 22QK 22QK 2221QK 2QK 221QK 2221QK 2QK 221QK 2221QK 2QK 221QK 2221QK 221QK 2QK 221QK 22217QK 2217QK 27QK 2217QK 2221QK 221QK 2QK 221QK 2221QK 221QK 2QK 221QK Tapeed boe Mounting elated dimensions (mm) Axial load facto Dimensions of oil holes and gooves 7 7 7 Goove width A Hole count N 0...0.0 7.0 0.0..0. 7.0 0.0..0.0. 7 7 7. 77.0 77.0 7.. 7.0 7.0 0.0 0.0.0.0.0.0 0.0 0.0.0.0 7.0 7.0.0.0 da (min.) 0. 0. 0.27 0.2 0.27 0.2 0.2 0.7 0.2 0.2 0.7 0.2 0.2 0. 0.2 0.2 0. 0.2 0.2 0. 0.2 0.2 0. 0.2 0.2 0. 0.2 0. 0.2 0.2 0. 0.0 0.2 0. 0.2 0.2 0.2 0. 0.2 0.0 0.2 0. Constant e 2. 2. 2.7 2. 1. 2. 2.2 1. 2.7 2.71 1. 2. 2.71 1. 2.7 2.7 1. 2. 2. 1. 2.7 2. 1..07 2.7 1..07 2. 2. 1..01 2.2 2. 2 2.7 2.1 0 2.7 2.2 2.2 2 Y1 2..0.71..71..0 2.72.0.0 2.72.1.0 2.7.2.0 2.7.0.1 2.77.00.21 2..27.2 2...27 2.0.7.0.2 2.0...0.00.1.1. 2.....00 Y2 1.7 0 2. 2. 2.2 2.0 1.7 2.0 2. 1.7 2.7 2. 2.7 2. 2. 2.72 1.2 2. 2.7 1. 2.0 2.7 1..00 2.0.00 2.0 2.2 2. 2.20 2. 1.7 2.7 2. 1. 2.70 2.20 2. 1.7 Y0...0.0 7 7.0 1. 7.0 1..0 0.0 1. 0.0 0.0 1..0.0 1..0.0. 1..0.0.0.0.0.0 17.0 17.0 Da (max.) 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 2. 2. 2. 2. 2. 2. a (max.) Hole diamete du Dynamic equivalent adial load P=XF+YFa Static equivalent adial load Po=F+Y0Fa Value of Y0 to be obtained fom the following table. e Fa F > e Fa F X 1 Y Y1 X 0.7 Y Y2 a φda φda φda φda Values of e, Y1 and Y2 to be obtained fom the following table. Spheical Rolle eaings
1 21 21 20 20 21 21 20 20 2 2 20 20 20 2 2 22 22 20 20 22 22 20 20 270 270 20 20 270 270 20 20 20 20 7.0.0 0. 7.0 7.0.0.0.0.0. 0.0 0.0.0 0.0 0.0.0 7.0.0.0.0.0 0.0.0 0.0.0.0.0.0.0.0.0.0 7.0 0.0 0.0 7.0.0 0.0 0.0.0.0 7.0 0.0.0 7.0 1..0.0.0.0.0.0.0.0.0.0.0.0.0 2020Q 20Q 22220Q 2220Q 20Q 2220Q 2022Q 22Q 22Q 22222Q 2222Q 22Q 2222Q 202Q 202Q 2Q 2Q 2222Q 222Q 2Q 222Q 202Q 202Q 2Q 2Q 2222Q 222Q 222Q 202Q 202Q 2Q 2Q 2222Q 222Q Q Q 2Q 2Q 2220Q 220Q 202Q 202Q 2Q 2Q 20Q 20Q 21Q 20Q 0,000 20,000,000 0,000 7,000 1,000 0,000,000 0,000 70,000 7,000 1,,000 0,000 0,000 7,000 1,000 7,000 0,000 70,000 1,20,000,000 7,000 0,000 0,000,000 0,000 1,0,000,000 720,000 70,000 0,000 1,00,000 1,,000 0,000 1,000 1,000,000 1,20,000 1,,000 1,0,000 7,000 0,000 1,,000 1,0,000 0,000 1,0,000 1,20,000 1,070,000 00,000 0,000 7,000 7,000,000 7,000 0,000 7,000,000 1,00,000 1,000,000 720,000 70,000 7,000,000 7,000 1,,000 0,000 00,000 7,000 1,00,000 1,000 1,00,000 1,0,000 7,000 20,000 0,000 1,,000 1,00,000 1,20,000 70,000 1,00,000 1,20,000 1,20,000 1,,000 1,0,000 1,000 1,20,000 1,0,000 1,,000 1,00,000 1,0,000 1,0,000 1,0,000 2020QK 20QK 22220QK 2220QK 20QK 2220QK 2022QK 22QK 22QK0 22222QK 2222QK 22QK 2222QK 202QK 202QK0 2QK 2QK0 2222QK 222QK 2QK 222QK 202QK 202QK0 2QK 2QK0 2222QK 222QK 222QK 202QK 202QK0 2QK 2QK0 2222QK 222QK QK QK0 2QK 2QK0 2220QK 220QK 202QK 202QK0 2QK 2QK0 20QK 20QK0 21QK 20QK,000 2,00,0,0 2,00 2,,000,000,000 2,00 2,00 2,00 2,0 2,00 2,00 2,00 2,00 2,00 2,00 2,0 2,00 2,00 2,00 2,00 2,00 2,00 1,00 2,00 2,00 2,00 2,00 2,0 2,0 2,0 2,00 2,0 2,0 2,0 1,00 1,00 1,700,00,00,00,00,00 2,00,00,00,00,00,00,000 2,00,00,00,00,00,,00 2,00 2,700,,00,, 2,00 2,00 2,00 2,00,,000 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 2,00 0 0 0 A N-φdu φd φd φd φd Oil holes and oil gooves (W) Cylindical boe Tapeed boe (Note) The Q-V specifications ae also available fo the blue-coloed beaing numbes. eaing numbe Pemissible otating speed (min -1 ) Main dimensions (mm) D (min.) Cylindical boe (Note) asic dynamic load ating C(N) asic static load ating Co(N) Tapeed boe Gease lubication Oil lubication d
Static equivalent adial load Po=F+Y0Fa Value of Y0 to be obtained fom the following table. a φda φda φda φda Dynamic equivalent adial load P=XF+YFa e Fa F > e Fa F X 1 Y Y1 X 0.7 Values of e, Y1 and Y2 to be obtained fom the following table. 2....7.70..70. 7..0..20. 7.0.1.2 1 1. 22..1 7..0.7. 1.2 2..1.0. 1. 1..01. 1.2 1. 1. 2.2.7.7 20. 2. 17. 21. 17. Mass (kg) Cylindical boe (Refeence) eaing numbe 2020Q 20Q 22220Q 2220Q 20Q 2220Q 2022Q 22Q 22Q 22222Q 2222Q 22Q 2222Q 202Q 202Q 2Q 2Q 2222Q 222Q 2Q 222Q 202Q 202Q 2Q 2Q 2222Q 222Q 222Q 202Q 202Q 2Q 2Q 2222Q 222Q Q Q 2Q 2Q 2220Q 220Q 202Q 202Q 2Q 2Q 20Q 20Q 21Q 20Q Cylindical boe (Note) 2020QK 20QK 22220QK 2220QK 20QK 2220QK 2022QK 22QK 22QK0 22222QK 2222QK 22QK 2222QK 202QK 202QK0 2QK 2QK0 2222QK 222QK 2QK 222QK 202QK 202QK0 2QK 2QK0 2222QK 222QK 222QK 202QK 202QK0 2QK 2QK0 2222QK 222QK QK QK0 2QK 2QK0 2220QK 220QK 202QK 202QK0 2QK 2QK0 20QK 20QK0 21QK 20QK Tapeed boe Mounting elated dimensions (mm) Axial load facto Dimensions of oil holes and gooves 7 1 1 1 17 1 1 1 1 1 1 1 17 1 1 1 1 Goove width A Hole count N 7.0 0.0.0.0 0.0 0.0 0.0.0.0.0.0.0.0 1 1.0.0.0.0.0.0 1 1 1 1 1 1 17 17 17 17 1 1 1 1 da (min.) 0.2 0.2 0.2 0. 0.2 0.2 0.7 0.2 0. 0.21 0. 0.2 0.0 0.2 0. 0.2 0. 0.21 0. 0.2 0.2 0.2 0. 0.2 0. 0. 0.2 0.0 0.2 0. 0.2 0. 0.0 0.0 0. 0.2 0. 0.0 0.0 0. 0.2 0.2 0.2 0.2 Constant e.01 2. 2.7.02 1. 2. 2. 1. 2. 1..1 2. 2.2 2. 1.7 2.0 1.7.17 2.7 2.2 1.0 2. 2. 2.2 2. 1.7 2.0 1..0 2.2 2.2 1.77 2. 1..01 2.2 2.22 1.7 2.0 1 2.0 2. Y1..7.0.. 2.0.2.1 2.7. 2..7.02.0.2. 2..7 2..72.02.27.1.1 2..0.0.02... 2.7.7 2...2. 2..00 2....0 2..1.1..2 Y2 2. 2.2 2. 2. 2.7 2.1 2. 1.. 1. 2. 2.2 1.7 2. 1.. 1. 2.0 2.7 1. 2.0 0 1. 2.1 2.2 2.0 1. 2. 1. 2.7 1.7 2. 1.2 2. 7 1.70 2. 7 2.2 2.7 Y0.0 20 20.0.0.0 22.0 22.0.0.0 10.0 10.0 20.0 20.0 2.0 2.0 10.0 10.0.0.0 2 2 2.0.0 2 2 2.0 2.0 2 2 2.0 2.0 2.0 2.0 22.0 22.0 2.0 2.0 2.0 2.0 2.0 2.0 Da (max.) 1. 2. 2. 2. 2. 2. 2. 2. 2..0 2. 2. 2. 2. a (max.) Hole diamete du Spheical Rolle eaings Y Y2
Spheical Rolle eaings Q seies vesus conventional seies pefomance compaison Tempeatue incease test vs. Axial load Test beaing 22Q and 22 0 Test condition Radial load Axial load Rotating speed Lubication amount 00N 0~00N 20pm 0.L/min Tempeatue ise value ( C) 0 0 Q Axial load Fa (N) 0 00 0000 0000 Tempeatue ise test vs. Rotating speed 0 Test beaing 22Q and 22 Test condition Radial load Axial load Rotating speed Lubication amount 700N N 00~000pm 0.L/min Tempeatue ise value ( C) Rotating speed N (pm) 0 20 0 Q 0 00 0 000 000 000 Impact esistance test Test beaing 22Q-V and 22Q Test condition Vibation cycle cpm Vibation acceleation G Tempeatue 20 C 0 0 Impact fequency ( times) 0 20 0 Q Q-V www.nachi.com Toyama Head Office Tokyo Head Office 1-1-1 Fujikoshi-Honmachi, Toyama 0- Shiodome Sumitomo ldg. 17F, 1--2 Higashi-Shinbashi, Minato-ku, Tokyo -0021 Tel: +1-(0)7-2-0 Tel: +1-(0)--27 Fax: +1-(0)7--21 Fax: +1-(0)--27 NACHI AMERICA INC. HEAD QUARTERS NACHI CANADA INC. NACHI MICANA, S.A. DE C.V. NACHI RASIL LTDA. NACHI EUROPE GmbH NACHI SINGAPORE PTE. LTD. PT.NACHI INDONESIA NACHI TECHNOLOGY (THAILAND) CO., LTD. NACHI KG TECHNOLOGY INDIA PVT. LTD. NACHI (AUSTRALIA) PTY. LTD. NACHI (SHANGHAI) CO., LTD. Indiana, U.S.A. CANADA MICO RASIL GERMANY SINGAPORE INDONESIA THAILAND INDIA N.S.W, AUSTRALIA CHINA Tel: +1-17-0-01 Tel: +1-0-0-00 Tel: +2--0-02/02/01 Tel: +--7-00 Tel: +-(0)2-0-0 Tel: +-7 Tel: +2-021-27-21 Tel: +-2-71-000 Tel: +1-(0)-0-200 Tel: +1-(0)2--1 Tel: +-(0)21-1-2 Fax. +1-17-0- Fax: +1-0-0- Fax: +2--0-02 Fax: +--7-70 Fax: +-(0)2-0-0 Fax: +-771 Fax: +2-021-27-02 Fax: +-2-71-070 Fax: +1-(0)-0-2 Fax: +1-(0)2--17 Fax: +-(0)21-1-27 http://www.nachiameica.com/ http://www.nachicanada.com/ http://www.nachi.com.mx/ http://www.nachi.com.b/ http://www.nachi.de/ http://www.nachinip.com.sg/ http://www.nachi.co.id/ http://www.nachi.co.th/ http://www.nachi.com.au/ http://www.nachi-china.com.cn/ The specifications ae subject to change without pio notice due to impovement. Infomation contained in this catalog potected by copyight, so it is pohibited to copy, epint, o epoduce in any manne without pemission fom NACHI. CATALOG NO. 207E 201..Y-MIZUNO