Angular Contact Ball Bearings

Transcription

1 Angular Contact Ball Bearings 7200 BE CB Y HC esign 2. Clearance 3. Cage esign A Non-filling slot (Conra type , 5000 series) MRC. C. B BE U 40 contact angle 40 contact angle, high capacity, all ISO corners Split inner ring (3300 series) MRC 29 contact angle, 1/2 pair, uplex MRC 29 contact angle an groun for uplex mounting an zero preloa/ clearance E Filling slot (Max type series) MRC. M. FF 2 Shiels on MRC RACBB C2 C3 Axial clearance tighter than normal (3000,5000 an QJ series) Axial clearance greater than normal (3000, 5000 an QJ series) 7000 Series clearance* CA CB CC Moifie for uplex mounting with axial clearance < normal Moifie for uplex mounting with normal axial clearance Moifie for uplex mounting with axial clearance > normal CN Normal clearance (3000, 5000 series) no symbol shown J M P Y Presse steel cage, ball centre. Machine brass cage, ball centre Fibreglass reinforce polyamie, ball centre Press brass cage 4. Special Features HC4 HC5 Full ceramic bearing Ceramic ball set NR N2 R R 2RS1 ZZ 2Z Snap ring (3300,5000 series) Locating slot (QJ Series) MRC single row with 15 contact angle MRC single row for uplex mounting an 15 contact angle Rubber seals on both sies 2 rubber seals on MRC RACBB Metal shiels on both sies (5000 series) GA GB GC G... Moifie for uplex mounting with light preloa Moifie for uplex mounting with meium preloa Moifie for uplex mounting with heavy preloa Special preloa, value in an *If the above symbols from CA to G.. are not shown the bearing is not moifie for uplex mounting 5. Lubrication MT33 GJN Meium temperature Lithium grease, C, range -30 C to C i-urea hi-temp, 40 C, range -40 C to +150 C 73

2 Angular contact ball bearings Technical Features Single Row ACBB ouble Row ACBB Four-Point Contact ACBB Bounary In accorance with In accorance with In accorance with imensions ISO ISO ISO Tolerances ABEC 3 (P6) ABEC 3 (P6)* ABEC 3 (P6) SKF Explorer P5 running P6 bounary Heat Stabilization 257 F (125 C) 257 F (125 C) 302 F (150 C) SKF Explorer 150 C SKF Explorer 150 C Misalignment None - contact SKF None - contact SKF None - contact SKF Cage Materials Polyamie (P)* Polyamie (TN9) Machine Brass (M, MA) Machine Brass (M)* Limite sizes, presse Presse Steel 1) J steel. Presse brass 1) (Y) Axial Loa - max 1.4 x C 0 for single or 0.7 x C 0 Conra 0.7 x C 0 tanem mounte F a /F r < 0.3 bearings 0.7 x C 0 for uplex mounting Seals, shiels Not available 2RS1- Nitrile rubber Not available 2Z - Steel shiels *SKF Explorer types 1) Non-Explorer Single Row Angular Contact Ball Bearing (ata tables on page 78) ouble Row Angular Contact Ball Bearing (ata tables on page 91) Four-Point Angular Contact Ball Bearing (ata tables on page 95) 74

3 Angular contact ball bearings Internal Clearance Axial internal clearance single row angular contact ball bearings Internal clearance in a single row angular contact ball bearing is only obtaine after mounting an is epenent on ajustment against a secon bearing that provies axial location in the opposite irection. Bearings for universal pairing (suffix CB) are the stanar SKF bearings for paire mounting in ranom orer (back-to-back, face-to-face or tanem). Bearings can be supplie with smaller axial internal clearance (suffix CA) or larger (suffix CC) or with preloa (suffixes GA, GB an GC) for universal pairing. Bearings ientifie by suffix CA, CB or CC can be mounte immeiately ajacent to each other in any orer an two or more bearings may be use. Bearings with preloa of the GA, GB an GC esigns can only be arrange in pairs, otherwise the preloa will increase. Table 1 Unmounte axial internal clearance of single row angular contact ball bearings of series 72B (E), 73B (E) an 74B (B) when arrange in ranom pairs (back-to-back or face-to-face) Bore Axial internal clearance iameter CA CB CC over incl. min max min max min max min max min max min max mm µm in µm in µm in Raial clearance [~=] 0.85 axial clearance. The values of axial internal clearance for the classes CA, CB an CC can be foun in table 1. They are vali for bearings arrange back-to-back or face-to-face before mounting an uner zero measuring loa. Preloa values for classes GA, GB an GC are given in table 1a. Table 2 shows a conversion from the ol preloa suffixes to the current suffix. Table 1a Bore iameter Unmounte preloa of single row angular contact ball bearings of series 72B (E), 73B (E) an 74 (B) when arrange in ranom pairs (back-to-back or face-to-face) Preloa GA GB GC over incl. min max min max max max min max min max min max min max min max min max min max min max mm µm in N lbf µm in N lbf µm in N lbf

4 Angular contact ball bearings Table 2 Ol/new preloa esignation interchange, single row angular contact ball bearings 72xx, 73xx an 74xx series Bore Bore Ol preloa suffix size iameter (mm) G02 G05 G1* G2 G3 G5 *Example: 7308 BEAG1Y = 08 bore size, 40 mm bore iameter G1 (100 lbs.) preloa Replace with: 7308 BEGBY GB GB GC GB GB GC GB GB GC GB GB GC GA GB GC GA GB GC GA GB GB GC 08* 40* GA GB GB* GC GA GB GB GC GA GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC GA GA GB GB GB GC Table 3 Axial internal clearance of Conra type an filling slot ouble row angular contact ball bearings 32, 33, 52, 53, 54 series an ouble row cam followers Bore Axial internal clearance iameter C2 Normal C3 C4 over incl. min max min max min max min max min max min max min max min max mm µm in µm in µm in µm in

5 Angular contact ball bearings Table 4 Axial internal clearance of four-point contact ball bearings Bore Axial internal clearance iameter C2 Normal C3 C4 over incl. over incl. min max min max min max min max min max min max min max min max mm in µm in µm in µm in µm in ouble row angular contact ball bearings Basic esign bearings in the 32 A an 33 A series shown in the prouct table as well as the corresponing seale bearings to 2Z an 2RS1 esign are ientical to the corresponing bearings in the 52 an 53 series for the North American market. They have the same performance characteristics an imensional features (except for the with of size 5200). However, the seale bearings are fille with a ifferent grease. Bearings in the 52 an 53 series use a mineral oil base high-temperature grease with i-urea thickener. The operating temperature range of this grease is -30 to +175 C. The base oil viscosity is 115 mm 2 /s at 40 C an 12 mm 2 /s at 100 C. open shiele split inner ring a b c For 3200 an 3300 series, the grease has a lithium thickener with a mineral oil base. The operating temperature is -30 C to +120 C, with a base oil viscosity of 74mm 2 /s at 40 C 77

6 Single row angular contact ball bearings mm in B 40 contact angle Principal imensions Basic loa ratings Fatigue Spee ratings Mass esignations ynamic static loa Reference Limiting Universally Basic limit spee spee matchable esign B B C C 0 P u bearing bearing mm in kn kn r/min kg BECBP 7200 BEP BECBP 7201 BEP BEP BECBP 7202 BEP BECBP 7302 BEP * 7203 BECBP BEP BEY * 7203 BECBM BECBP 7303 BEP BECBP 7204 BEP BECBY BECBM * 7304 BECBP BEP BECBY 7304 BEY * 7304 BECBM * 7205 BECBP BEP BECBY 7205 BEY * 7205 BECBM * 7305 BECBP BEP BECBY 7305 BEY * 7305 BECBM * 7206 BECBP BEP BECBY 7206 BEY * 7206 BECBM * 7306 BECBP BEP BECBY 7306 BEY * 7306 BECBM * 7207 BECBP BEP BECBY 7207 BEY * 7207 BECBM * 7307 BECBP BEP BECBY 7307 BEY * 7307 BECBM * SKF Explorer bearing 78

7 Single row angular contact ball bearings mm in Principal imensions Basic loa ratings Fatigue Spee ratings Mass esignations ynamic static loa Reference Limiting Universally Basic limit spee spee matchable esign B B C C 0 P u bearing bearing mm in kn kn r/min kg * 7208 BECBP BEP BECBY 7208 BEY * 7208 BECBM BEM * 7308 BECBP BEP BECBY 7308 BEY * 7308 BECBM * 7209 BECBP BEP BECBY 7209 BEY * 7209 BECBM * 7309 BECBP BEP BECBY 7309 BEY * 7309 BECBM * 7210 BECBP BEP BECBY 7210 BEY * 7210 BECBM * 7310 BECBP BEP BECBY 7310 BEY * 7310 BECBM BECBP 7211 BEP BECBY 7211 BEY BECBM * 7311 BECBP BEP BECBY 7311 BEY * 7311 BECBM * 7212 BECBP BEP BECBY 7212 BEY * 7212 BECBM * 7312 BECBP BEP BECBY 7312 BEY * 7312 BECBM BEM * SKF Explorer bearing 79

8 Single row angular contact ball bearings mm in B 40 contact angle Principal imensions Basic loa ratings Fatigue Spee ratings Mass esignations ynamic static loa Reference Limiting Universally Basic limit spee spee matchable esign B B C C 0 P u bearing bearing mm in kn kn r/min kg BECBP 7213 BEP BECBY 7213 BEY BECBM * 7313 BECBP BECBY 7313 BEP * 7313 BECBM * 7214 BECBP BECBY 7214 BEP * 7214 BECBM * 7314 BECBP BECBY 7314 BEP * 7314 BECBM BECBP 7215 BEP BECBY BECBM * 7315 BECBP BEP BECBY * 7315 BECBM BECBP 7216 BEP BECBY * 7216 BECBM * 7316 BECBP BEP BECBY 7316 BEY * 7316 BECBM BEM BECBP 7217 BEP BECBY BECBM * 7317 BECBP BEP BECBY * 7317 BECBM BEM BECBP 7218 BEP BECBY BECBM * 7318 BECBP BEP BECBY * 7318 BECBM BEM * SKF Explorer bearing 80

9 Single row angular contact ball bearings mm in Principal imensions Basic loa ratings Fatigue Spee ratings Mass esignations ynamic static loa Reference Limiting Universally Basic limit spee spee matchable esign B B C C 0 P u bearing bearing mm in kn kn r/min kg BECBP 7219 BEP BECBY * 7219 BECBM * 7319 BECBP BEP BECBY * 7319 BECBM BEM BECBP 7220 BEP BECBY 7220 BEY BECBM * 7320 BECBP BEP BECBY 7320 BEY * 7320 BECBM BEM BECBP 7221 BEP BECBM BECBP 7321 BEP BECBM BECBP 7222 BEP BECBY BECBM 7222 BEM BECBP 7322 BEP BECBY 7322 BEY BECBM 7322 BEM BCBM 7224 BM BCBM BCBM 7226 BM BCBM 7326 BM BCBM 7228 BM BCBM BCBM BCBM BCBM BCBM BCBM BCBM BCBM * SKF Explorer bearing 81

10 Single row angular contact ball bearings mm in B 40 contact angle Principal imensions Basic loa ratings Fatigue Spee ratings Mass esignations ynamic static loa Reference Limiting Universally Basic limit spee spee matchable esign B B C C 0 P u bearing bearing mm in kn kn r/min kg BCBM BCBM BCBM BCBM BCBM BCBM * SKF Explorer bearing 82

11 B MRC 300-R Meium Series (Single bearings) mm in 15 contact angle 300-R Meium Series bearing bores range in iameter from 12 mm to 280 mm. They are use with heavy raial loas, one-irectional thrust loas, or a combination of both. They can be furnishe uplex groun for mounting in pairs with two-irectional thrust loas. MRC Principal imensions Basic Raial Spee Rating 1) Bearing Loa Rating Number B B ynamic 2) Static Grease Oil mm in kn kn rpm 301-R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R ) Liste values are for presse steel or polyamie cage, ABEC-1. For phenolic composition cage, multiply by 1.66 for grease an 2.00 for oil. For machine bronze cage, multiply by 1.25 for grease an 1.50 for oil. For phenolic composition cage, ABEC-5 or 7, multiply by 2.30 for grease an 2.80 for oil. The spee rating ajustment factors have been etermine through historical application an practice. 2) Rating for one million revolutions or 500 hours at 33 1/3 RPM. 83

12 MRC 300-R meium series, uplex mm in B "" inicates a uplex groun half pair matche with an ientical half pair an is followe by an aitional suffix letter to escribe the type of uplex. 15 contact angle Note: ABEC 1 & 3 are stocke as half pairs where available. Use these values for back-to-back (B) or face-to-face (F) mounting arrangements. MRC Principal imensions Basic Raial Spee Rating 1) Bearing Loa Rating Number B B ynamic 2) Static Grease Oil mm in kn kn rpm 301-R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R ) Liste values are for presse steel or polyamie cage, ABEC-1. For phenolic composition cage, multiply by 1.66 for grease an 2.00 for oil. For machine bronze cage, multiply by 1.25 for grease an 1.50 for oil. For phenolic composition cage, ABEC-5 or 7, multiply by 2.30 for grease an 2.80 for oil. The spee rating ajustment factors have been etermine through historical application an practice. 2) Rating for one million revolutions or 500 hours at 33 1/3 RPM. 84

13 B MRC 400-R an 400-R Heavy Series, uplex mm in 15 contact angle 400-R an -R Heavy Series bearings are available in bores from 17 mm to 110 mm. They can hanle very heavy raial loas, one-irectional thrust loas, or a combination of both. Use uplex bearings for two-irectional thrust loas. "" inicates a uplex groun half pair matche with an ientical half pair an is followe by an aitional suffix letter to escribe the type of uplex. Note: ABEC 1 & 3 are stocke as half pairs where available. Values for -R bearings are for back-to-back (B) or face-to-face (F) mounting arrangements. MRC Principal imensions Basic Raial Spee Rating 1) Bearing Loa Rating Number B B ynamic 2) Static Grease Oil mm in kn kn rpm 403-R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R ) Liste values are for presse steel or polyamie cage, ABEC-1. For phenolic composition cage, multiply by 1.66 for grease an 2.00 for oil. For machine bronze cage, multiply by 1.25 for grease an 1.50 for oil. For phenolic composition cage, ABEC-5 or 7, multiply by 2.30 for grease an 2.80 for oil. The spee rating ajustment factors have been etermine through historical application an practice. 2) Rating for one million revolutions or 500 hours at 33 1/3 RPM. 85

14 MRC 7200 Light Series (single bearings) mm in B The 7200 Series contains single-row angular contact bearings with a counterbore outer ring. Bore sizes range from 10 mm to 320 mm, an most of these bearings are available with a two-piece presse steel cage, or a one-piece nonmetallic or soli bronze cage Series bearings are esigne with an initial contact angle of 29 egrees, although some small sizes may have a lesser angle Series bearings can be use with moerate to heavy one-irectional thrust loas, or combine raial an thrust loas where the thrust loa is preominant. 29 contact angle Caution: Single bearings are not to be use where only raial loas are present. For two-irectional thrust loas, use uplex bearings. MRC Principal imensions Basic Raial 1) Spee Rating 2) Bearing Loa Rating Number B B C 3) C 0 Grease Oil mm in kn kn rpm ) For thrust rating multiply C by 1.32 an C 0 by ) Liste values are for machine bronze cage, ABEC-1. For phenolic composition cage, multiply by 1.33 for both grease an oil. For phenolic composition cage, ABEC-5 or 7, multiply by 1.86 for both grease an oil. For presse steel cage, ABEC-1, multiply by 0.67 for grease an 0.80 for oil. The spee rating ajustment factors have been etermine through historical application an practice. 3) Rating for one million revolutions or 500 hours at 33 1/3 RPM.

15 B MRC light series, uplex mm in "" inicates a uplex groun half pair matche with an ientical half pair an is followe by an aitional suffix letter to escribe the type of uplex. 29 contact angle Note: ABEC 1 & 3 are stocke as half pairs, where available. Use these values for back-to-back (B) or face-to-face (F) mounting arrangements. MRC Principal imensions Basic Raial 1) Spee Rating 2) Bearing Loa Rating Number B B C 3) C 0 Grease Oil mm in kn kn rpm ) For thrust rating multiply C by 0.81 an C 0 by ) Liste values are for machine bronze cage, ABEC-1. For phenolic composition cage, multiply by 1.33 for both grease an oil. For phenolic composition cage, ABEC-5 or 7, multiply by 1.86 for both grease an oil. For presse steel cage, ABEC-1, multiply by 0.67 for grease an 0.80 for oil. The spee rating ajustment factors have been etermine through historical application an practice. 3) Rating for one million revolutions or 500 hours at 33 1/3 RPM. 87

16 MRC 7300 Meium Series (Single bearings) mm in B 7300 series bearings have the same ring an ball cage construction as the 7200 Series but are heavier sectione bearings with a ball complement capable of hanling heavier loas Series are liste with bore sizes from 10 mm to 280 mm. For two irectional thrust loas, use uplex bearings. 29 contact angle Caution: Single bearings are not to be use where only raial loas are present. For two-irection thrust loas, use uplex bearings. MRC Principal imensions Basic Raial 1) Spee Rating 2) Bearing Loa Rating Number C 3) C 0 Grease Oil B B mm in kn kn rpm ) For thrust rating multiply C by 1.32 an C 0 by ) Liste values are for machine bronze cage, ABEC-1. For phenolic composition cage, multiply by 1.33 for both grease an oil. For phenolic composition cage, ABEC-5 or 7, multiply by 1.86 for both grease an oil. For presse steel cage, ABEC-1, multiply by 0.67 for grease an 0.80 for oil. The spee rating ajustment factors have been etermine through historical application an practice. 3) Rating for one million revolutions or 500 hours at 33 1/3 RPM. 88

17 B MRC meium series, uplex mm in "" inicates a uplex groun half pair matche with an ientical half pair an is followe by an aitional suffix letter to escribe the type of uplex. 29 contact angle Use these values for back-to-back (B) or face-to-face (F) mounting arrangements. Note: ABEC 1 & 3 are stocke as half pairs where available. MRC Principal imensions Basic Raial 1) Spee Rating 2) Bearing Loa Rating Number C 3) C 0 Grease Oil B B mm in kn kn rpm ) For thrust rating multiply C by 0.81 an C 0 by ) Liste values are for machine bronze cage, ABEC-1. For phenolic composition cage, multiply by 1.33 for both grease an oil. For phenolic composition cage, ABEC-5 or 7, multiply by 1.86 for both grease an oil. For presse steel cage, ABEC-1, multiply by 0.67 for grease an 0.80 for oil. The spee rating ajustment factors have been etermine through historical application an practice. 3) Rating for one million revolutions or 500 hours at 33 1/3 RPM. 89

18 MRC 7400 heavy series an MRC heavy series mm in B 7400 Series bearings are similar to the 7200 an 7300 Series but are heavier sectione an are use for heavy one-irectional thrust loas or combine raial an thrust loas where the thrust loa is preominant. "" inicates a uplex groun half pair matche with an ientical half pair an if followe by an aitional suffix letter to escribe the type of uplex. 29 contact angle Caution: Single bearings are not to be use where only raial loas are present. For two-irection thrust loas, use uplex bearings. Note: ABEC 1 & 3 are stocke as half pairs where available. Values for - bearings are for back-to-back (B) or face-toface (F) mounting arrangements. MRC Principal imensions Basic Raial 1) Spee Rating 2) Bearing Loa Rating Number C 3) C 0 Grease Oil B B mm in kn kn rpm ) For thrust rating multiply C by 1.32 an C 0 by 2.94 (single) an C by 0.81 an C 0 by 1.47 (uplex) 2) Liste values are for machine bronze cage, ABEC-1. For phenolic composition cage, multiply by 1.33 for both grease an oil. For phenolic composition cage, ABEC-5 or 7, multiply by 1.86 for both grease an oil. For presse steel cage, ABEC-1, multiply by 0.67 for grease an 0.80 for oil. The spee rating ajustment factors have been etermine through historical application an practice. 3) Rating for one million revolutions or 500 hours at 33 1/3 RPM. 90

19 B ouble row angular contact ball bearings mm in 30 contact angle Principal imensions Basic loa ratings Fatigue Spee ratings Mass esignations ynamic static loa Reference Limiting Bearing with limit spee spee metal cage polyamie B B C C 0 P u cage mm in kn kn r/min kg ATN ATN ATN ATN ATN ATN * 3204 A * 3204 ATN * 3304 A * 3304 ATN * 3205 A * 3205 ATN * 3305 A * 3305 ATN * 3206 A * 3206 ATN * 3306 A * 3306 ATN * 3207 A * 3207 ATN * 3307 A * 3307 ATN J * 3208 A * 3208 ATN * 3308 A * 3308 ATN NRCBM MA 3308 TN * 3209 A * 3209 ATN * 3309 A * 3309 ATN NRCBM MA * 3210 A * 3210 ATN * 3310 A * 3310 ATN NRCBM MA * 3211 A * 3211 ATN * 3311 A NRCBM MA * 3212 A * 3212 ATN * 3312 A A * 3313 A NRCBM * SKF Explorer bearing 91

20 ouble row angular contact ball bearings mm in B mm in 30 contact angle Principal imensions Basic loa ratings Fatigue Spee ratings Mass esignations ynamic static loa Reference Limiting Bearing with limit spee spee metal cage polyamie B B C C 0 P u cage mm in kn kn r/min kg A A A * 3315 A A A MA A A A A MA A A MA A A A A esignation Principal imensions Basic Loa Ratings Spee Rating Mass ynamic static Lubrication B C C 0 Seal Grease Oil mm in mm in mm in N lbf N lbf rpm rpm rpm kg lb 5408 A / A / A / A / A / A / A / A / A / * SKF Explorer bearing 92