Detailed Product Description
Type: | Ball | Brand Name: | Miru ,OEM And So On |
Structure: | Angular Contact,Other Structure | Cage: | Brass Cage,Steel Cage And So On |
Number Of Row: | Single Row Or Double Row | Precision Rating: | P0.P6.P5.P4.P2 |
4 Points Angular Contact Ball Bearing QJ312 For High Speed Wire Rod Rolling Mill laying Head
Angular contact ball bearings: 7000C-type (α = 15 °), 7000AC-type (α = 25 °) and 7000B (α = 40 °) of several types. The kinds of bearings in the outer ring lock port, the general separation of inside and outside the ring can not be combined radial and axial load and axial load in one direction. Axial load capacity of the decision by the contact angle, contact angle is greater, the ability to withstand high axial loads. This kind of bearing shaft or housing to limit axial displacement in one direction.
1) Single row and combined angular contact ball bearing
The more contact angle is, the larger axial load bearing capacity is,the smaller contact surface is,themuch more convenient high speed rotary is.
Pretension is made on angular contact ball bearing to increase rididity and accuracy of bearing.
This bearing creates axial thrust load when being forced by radial load,thus it is configured(or combined) face to face or back to back.
2) Double row angular contact ball bearing
Double row angular contact ball bearing can be subinitted radial and acial louding limit speed is quite high, it is non-separated type of bearing has high rigid can be submitted doubk direetion of axial load,the bearing could apply with the four row cylindrical bearing together to limit the working roll to move in axial diretion the double row angular contact ball bearing could apply with other bearings as a position bearing.
3) Four point contact ball bearing
Standard structure is that its inner ring is equally divided in axial direction,which is applicable to axial load or combined load,among which acial load is major composition.
Single bearing can bear double row axial load and certain extent radial load.According to different direction of axial load,ring and sphere always contact at two points of linear
Angular contact ball bearings |
706C , B706C series | 706C 707C 708C 709C B706C B707C B708C B709C |
724C series | 724C 725C 726C 727C 728C 729C | |
7000C series | 7000 7001 7002 7003 7004 7005 7006 7007 7008 7009 7010 7011 7012 7013 7014 7015 7016 7017 7018 7019 7020 7021 7022 7024 7026 7028 7030 7032 7034 7036 7038 7040 | |
7200C series | 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 7218 7219 7220 7221 7222 7224 7226 7228 7230 7232 7234 7236 7240 7244 7248 | |
7303C series | 7303 7304 7305 7306 7307 7308 7309 7310 7311 7312 7313 7314 7315 7316 7317 7318 7319 7320 7322 7324 7328 7330 7332 7336 7340 | |
7406 series | 7406 7407 7408 7409 7410 7411 7412 7413 7414 7415 7416 7418 | |
71900 series | 71900 71901 71902 71903 71904 71905 71906 71907 71908 71909 71910 719011 71912 71913 71914 71915 71916 71917 71918 71919 71920 71922 71924 71926 71928 71930 71932 71934 71936 71938 71940 | |
3200 series | 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3216 3218 3219 | |
3302 series | 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316
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Related Model:
Bearing No. | d | D | B | r min | Ca | C0a | Grease | Oil | approx |
QJ 206 | 30 | 62 | 16 | 1 | 31 000 | 45 000 | 8 500 | 12 000 | 0.24 |
QJ 306 | 72 | 19 | 1.1 | 46 000 | 63 000 | 8 000 | 11 000 | 0.42 | |
QJ 207 | 35 | 72 | 17 | 1.1 | 41 000 | 61 500 | 7 500 | 10 000 | 0.35 |
QJ 307 | 80 | 21 | 1.5 | 55 000 | 80 000 | 7 100 | 9 500 | 0.57 | |
QJ 208 | 40 | 80 | 18 | 1.1 | 49 000 | 77 500 | 6 700 | 9 000 | 0.45 |
QJ 308 | 90 | 23 | 1.5 | 67 000 | 100 000 | 6 300 | 8 500 | 0.78 | |
QJ 209 | 45 | 85 | 19 | 1.1 | 55 000 | 88 500 | 6 300 | 8 500 | 0.52 |
QJ 309 | 100 | 25 | 1.5 | 87 500 | 133 000 | 5 600 | 7 500 | 1.05 | |
QJ 210 | 50 | 90 | 20 | 1.1 | 57 000 | 97 000 | 5 600 | 8 000 | 0.59 |
QJ 310 | 110 | 27 | 2 | 102 000 | 159 000 | 5 000 | 6 700 | 1.35 | |
QJ 211 | 55 | 100 | 21 | 1.5 | 71 000 | 122 000 | 5 300 | 7 100 | 0.77 |
QJ 311 | 120 | 29 | 2 | 118 000 | 187 000 | 4 500 | 6 300 | 1.75
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