HB-244_02_(FRV40-225-005-010)_Bearings _Lineshaft_and_Thrust _Model_SKF_and_Michell_Bearing_(pages_51_-_75).pdf

1 Product information 2 Recommendations 3 Product data

Page ............. 3 Page

Shaft Bearing Width across seals Eye bolts Appropriate bearings and associated components seating according to Spherical roller bearing Adapter sleeve Locating rings

DIN 580 CARB bearing da Ca Da A2 A3 A4 mm mm mm – –

220 140 360 300 380 280 M 20 23048 CCK/W33 OH 3048 H 4 FRB 12/360

C 3048 K OH 3048 H 4 FRB 12/360

148 400 315 400 300 M 24 23148 CCK/W33 OH 3148 H 2 FRB 10/400

C 3148 K OH 3148 HTL 2 FRB 10/400

240 148 400 315 400 300 M 24 23052 CCK/W33 OH 3052 H 2 FRB 22/400

C 3052 K OH 3052 H 2 FRB 22/400

164 440 330 415 315 M 24 23152 CCK/W33 OH 3152 H 2 FRB 10/440

C 3152 K OH 3152 HTL 2 FRB 10/440

260 166 420 330 415 315 M 24 23056 CCK/W33 OH 3056 H 6 FRB 10/420

C 3056 K OH 3056 H 6 FRB 10/420

166 460 330 415 315 M 24 23156 CCK/W33 OH 3156 H 2 FRB 10/460

C 3156 K OH 3156 HTL 2 FRB 10/460

280 168 460 330 415 315 M 24 23060 CCK/W33 OH 3060 H 2 FRB 25/460

C 3060 K OH 3060 H 2 FRB 25/460

180 500 360 445 345 M 30 23160 CKK/W33 OH 3160 H 2 FRB 10/500

C 3160 K OH 3160 H 2 FRB 10/500

300 181 480 360 445 345 M 30 23064 CKK/W33 OH 3064 H 6 FRB 10/480

C 3064 K OH 3064 H 6 FRB 10/480

196 540 380 465 365 M 30 23164 CKK/W33 OH 3164 H 2 FRB 10/540

C 3164 K OH 3164 H 2 FRB 10/540

G

H

L J

N

N

J

Page ............. 3 Page ............. 10 Large SNL plummer block housings for bearings on adapter sleeves da 320–400 mm

Shaft Housing Dimensions Mass Designations

Housing Components da A A1 H H1 H2 J J1 L N N1 s G complete with Housing only Seal End cover two seals mm mm kg –

320 370 330 631 320 115 750 200 880 50 42 23 36 339 SNL 3068 TS SNL 3068 TS 68 ETS 68

SNL 3068 TNF SNL 3068 TNF 68 ETS 68

SNL 3068 TURT – TSD 3068 U ETS 68 R

SNL 3068 TURA – TSD 3068 U ETS 68 R

340 810 220 SNL 3168 TS SNL 3168 TS 68 ETS 68

SNL 3168 TNF SNL 3168 TNF 68 ETS 68

SNL 3168 TURT – TSD 3168 U ETS 68 R

SNL 3168 TURA – TSD 3168 U ETS 68 R

340 370 330 631 320 115 750 200 880 50 42 23 36 339 SNL 3072 TNF SNL 3072 TS 72 ETS 72

SNL 3072 TNF SNL 3072 TNF 72 ETS 72

SNL 3072 TURT – TSD 3072 U ETS 72 R

SNL 3072 TURA – TSD 3072 U ETS 72 R

350 840 220 SNL 3172 TS SNL 3172 TS 72 ETS 72

SNL 3172 TNF SNL 3172 TNF 72 ETS 72

SNL 3172 TURT – TSD 3172 U ETS 72 R

SNL 3172 TURA – TSD 3172 U ETS 72 R

360 340 810 220 SNL 3076 TS SNL 3076 TS 76 ETS 76

SNL 3076 TNF SNL 3076 TNF 76 ETS 76

SNL 3076 TURT – TSD 3076 U ETS 76 R

SNL 3076 TURA – TSD 3076 U ETS 76 R

360 870 220 SNL 3176 TS SNL 3176 TS 76 ETS 76

SNL 3176 TNF SNL 3176 TNF 76 ETS 76

SNL 3176 TURT – TSD 3176 U ETS 76 R

SNL 3176 TURA – TSD 3176 U ETS 76 R

380 350 840 220 SNL 3080 TS SNL 3080 TS 80 ETS 80

SNL 3080 TNF SNL 3080 TNF 80 ETS 80

SNL 3080 TURT – TSD 3080 U ETS 80 R

SNL 3080 TURA – TSD 3080 U ETS 80 R

380 950 240 SNL 3180 TS SNL 3180 TS 80 ETS 80

SNL 3180 TNF SNL 3180 TNF 80 ETS 80

SNL 3180 TURT – TSD 3180 U ETS 80 R

SNL 3180 TURA – TSD 3180 U ETS 80 R

400 360 870 220 SNL 3084 TS SNL 3084 TS 84 ETS 84

SNL 3084 TNF SNL 3084 TNF 84 ETS 84

SNL 3084 TURT – TSD 3084 U ETS 84 R

SNL 3084 TURA – TSD 3084 U ETS 84 R

410 1 000 260 SNL 3184 TS SNL 3184 TS 84 ETS 84

SNL 3184 TNF SNL 3184 TNF 84 ETS 84

SNL 3184 TURT – TSD 3184 U ETS 84 R

SNL 3184 TURA – TSD 3184 U ETS 84 R

Labyrinth seals Taconite seals Oil seals TS design TNF design TSD .. U design

Ca

H

H1

A

A A daDa s

A 3 A4

For missing dimensions and availability please consult SKF

Shaft Bearing Width across seals Eye bolts Appropriate bearings and associated components seating according to Spherical roller bearing Adapter sleeve Locating rings

DIN 580 CARB bearing da Ca Da A2 A3 A4 mm mm mm – –

320 197 520 380 465 365 M 30 23068 CCK/W33 OH 3068 H 4 FRB 16/520

C 3068 KM OH 3068 H 4 FRB 16/520

580 23168 CCK/W33 OH 3168 H

C 3168 KM OH 3168 H

340 198 540 380 465 365 M 30 23072 CCK/W33 OH 3072 H 4 FRB 16/540

600 23172 CCK/W33 OH 3172 H

C 3172 KM OH 3172 H

360 560 23076 CCK/W33 OH 3076 H

620 23176 CAK/W33 OH 3176 H

380 600 23080 CCK/W33 OH 3080 H

C 3080 KM OH 3080 H

650 23180 CAK/W33 OH 3180 H

C 3180 KM OH 3180 H

400 620 23084 CAK/W33 OH 3084 H

700 23184 CKJ/W33 OH 3184 H

G

H

L J

N

N

J for bearings on adapter sleeves da 410–470 mm

Shaft Housing Dimensions Mass Designations

Housing Components da A A1 H H1 H2 J J1 L N N1 s G complete with Housing only Seal End cover two seals mm mm kg –

410 380 950 240 SNL 3088 TS SNL 3088 TS 88 ETS 88

SNL 3088 TNF SNL 3088 TNF 88 ETS 88

SNL 3088 TURT – TSD 3088 U ETS 88 R

SNL 3088 TURA – TSD 3088 U ETS 88 R

420 1 030 260 SNL 3188 TS SNL 3188 TS 88 ETS 88

SNL 3188 TNF SNL 3188 TNF 88 ETS 88

SNL 3188 TURT – TSD 3188 U ETS 88 R

SNL 3188 TURA – TSD 3188 U ETS 88 R

430 420 1 030 260 SNL 3092 TS SNL 3092 TS 92 ETS 92

SNL 3092 TNF SNL 3092 TNF 92 ETS 92

SNL 3092 TURT – TSD 3092 U ETS 92 R

SNL 3092 TURA – TSD 3092 U ETS 92 R

440 1 070 260 SNL 3192 TS SNL 3192 TS 92 ETS 92

SNL 3192 TNF SNL 3192 TNF 92 ETS 92

SNL 3192 TURT – TSD 3192 U ETS 92 R

SNL 3192 TURA – TSD 3192 U ETS 92 R

450 410 1 000 260 SNL 3096 TS SNL 3096 TS 96 ETS 96

SNL 3096 TNF SNL 3096 TNF 96 ETS 96

SNL 3096 TURT – TSD 3096 U ETS 96 R

SNL 3096 TURA – TSD 3096 U ETS 96 R

460 1 110 260 SNL 3196 TS SNL 3196 TS 96 ETS 96

SNL 3196 TNF SNL 3196 TNF 96 ETS 96

SNL 3196 TURT – TSD 3196 U ETS 96 R

SNL 3196 TURA – TSD 3196 U ETS 96 R

470 420 1 030 260 SNL 30/500 TS SNL 30/500 TS 500 ETS 500

SNL 30/500 TNF SNL 30/500 TNF 500 ETS 500

SNL 30/500 TURT – TSD 30/500 U ETS 500 R

SNL 30/500 TURA – TSD 30/500 U ETS 500 R

Labyrinth seals Taconite seals Oil seals TS design TNF design TSD .. U design

Ca

H

H1

A

A A daDa s

A 3 A4

Shaft Bearing Width across seals Eye bolts Appropriate bearings and associated components seating according to Spherical roller bearing Adapter sleeve Locating rings

DIN 580

da Ca Da A2 A3 A4 mm mm mm – –

410 650 23088 CAK/W33 OH 3088 H

720 23188 CAK/W33 OH 3188 H

430 680 23092 CAK/W33 OH 3092 H

760 23192 CAK/W33 OH 3192 H

450 700 23096 CAK/W33 OH 3096 H

790 23196 CAK/W33 OH 3196 H

470 720 230/500 CAK/W33 OH 30/500 H

G

H

L J

N

N

J for bearings with cylindrical bore da 170–300 mm

Shaft Housing Dimensions Mass Designations

Housing Components da A A1 H H1 H2 J J1 L N N1 s G complete with Housing only Seal End cover two seals mm mm kg –

170 230 180 333 170 70 430 100 510 34 28 14 24 69,5 SNL 3134 GTS SNL 3134 G TS 40 ETS 40

SNL 3134 GTNF SNL 3134 G TNF 40 ETS 40

180 230 180 333 170 70 430 100 510 34 28 14 24 69,5 SNL 3036 GTS SNL 3036 G TS 44 ETS 44

SNL 3036 GTNF SNL 3036 G TNF 44 ETS 44

240 190 353 180 75 450 110 530 34 28 15 24 77,5 SNL 3136 GTS SNL 3136 G TS 44 ETS 44

SNL 3136 GTNF SNL 3136 G TNF 44 ETS 44

190 240 190 353 180 75 450 110 530 34 28 15 24 77,5 SNL 3038 GTS SNL 3038 G TS 44 ETS 44

SNL 3038 GTNF SNL 3038 G TNF 44 ETS 44

260 210 375 190 80 480 120 560 34 28 10 24 97,5 SNL 3138 GTS SNL 3138 G TS 44 ETS 44

SNL 3138 GTNF SNL 3138 G TNF 44 ETS 44

200 260 210 375 190 80 480 120 560 34 28 10 24 97,5 SNL 3040 GTS SNL 3040 G TS 48 ETS 48

SNL 3040 GTNF SNL 3040 G TNF 48 ETS 48

280 230 411 210 85 510 130 610 42 35 10 30 123 SNL 3140 GTS SNL 3140 G TS 48 ETS 48

SNL 3140 GTNF SNL 3140 G TNF 48 ETS 48

220 280 230 411 210 85 510 130 610 42 35 10 30 123 SNL 3044 GTS SNL 3044 G TS 52 ETS 52

SNL 3044 GTNF SNL 3044 G TNF 52 ETS 52

290 240 434 220 90 540 140 640 42 35 12 30 138 SNL 3144 GTS SNL 3144 G TS 52 ETS 52

SNL 3144 GTNF SNL 3144 G TNF 52 ETS 52

240 290 240 434 220 90 540 140 640 42 35 12 30 139 SNL 3048 GTS SNL 3048 G TS 56 ETS 56

SNL 3048 GTNF SNL 3048 G TNF 56 ETS 56

310 260 474 240 95 600 150 700 42 35 12 30 187 SNL 3148 GTS SNL 3148 G TS 56 ETS 56

SNL 3148 GTNF SNL 3148 G TNF 56 ETS 56

260 310 260 474 240 95 600 150 700 42 35 12 30 187 SNL 3052 GTS SNL 3052 G TS 60 ETS 60

SNL 3052 GTNF SNL 3052 G TNF 60 ETS 60

320 280 516 260 100 650 160 770 50 42 13 36 221 SNL 3152 GTS SNL 3152 G TS 60 ETS 60

SNL 3152 GTNF SNL 3152 G TNF 60 ETS 60

280 320 280 516 260 100 650 160 770 50 42 13 36 221 SNL 3056 GTS SNL 3056 G TS 64 ETS 64

SNL 3056 GTNF SNL 3056 G TNF 64 ETS 64

320 280 551 280 105 670 160 790 50 42 16 36 252 SNL 3156 GTS SNL 3156 G TS 64 ETS 64

SNL 3156 GTNF SNL 3156 G TNF 64 ETS 64

300 320 280 551 280 105 670 160 790 50 42 16 36 252 SNL 3060 GTS SNL 3060 G TS 68 ETS 68

SNL 3060 GTNF SNL 3060 G TNF 68 ETS 68

350 310 591 300 110 710 190 830 50 42 22 36 301 SNL 3160 GTS SNL 3160 G TS 68 ETS 68

SNL 3160 GTNF SNL 3160 G TNF 68 ETS 68

Labyrinth seals Taconite seals TS design TNF design

Ca

H

H1

A

A A dadbDa s

A 3

Shaft Bearing Width across Eye bolts Appropriate bearings and associated components seating seals according to Spherical roller bearing Locating rings

DIN 580 CARB bearing da db Ca Da A2 A3 mm mm mm – –

170 180 108 280 240 300 M 16 23134 CC/W33 2 FRB 10/280

180 200 108 280 240 310 M 16 23036 CC/W33 2 FRB 17/280

24036 CC/W33 2 FRB 4/280

C 3036 2 FRB 17/280

116 300 250 315 M 16 23136 CC/W33 2 FRB 10/300

C 3136 2 FRB 10/300

190 200 115 290 250 315 M 16 23038 CC/W33 4 FRB 10/290

24038 CC/W33 2 FRB 7,5/290

C 3038 4 FRB 10/290

124 320 270 335 M 20 23138 CC/W33 2 FRB 10/320

200 220 122 310 270 335 M20 23040 CC/W33 4 FRB 10/310

24040 CC/W33 2 FRB 6,5/310

C 3040 4 FRB 10/310

132 340 290 355 M 20 23140 CC/W33 2 FRB 10/340

C 3140 2 FRB 10/340

220 240 130 340 290 360 M 20 23044 CC/W33 4 FRB 10/340

24044 CC/W33 2 FRB 6/340

C 3044 4 FRB 10/340

140 370 300 365 M 20 23144 CC/W33 2 FRB 10/370

C 3144 2 FRB 10/370

240 260 140 360 300 380 M 20 23048 CC/W33 4 FRB 12/360

24048 CC/W33 2 FRB 11/360

C 3048 4 FRB 12/360

148 400 315 400 M 24 23148 CC/W33 2 FRB 10/400

C 3148 2 FRB 10/400

260 280 148 400 315 400 M 24 23052 CC/W33 2 FRB 22/400

24052 CC/W33 2 FRB 4/400

C 3052 2 FRB 22/400

164 440 330 415 M 24 23152 CC/W33 2 FRB 10/440

C 3152 2 FRB 10/440

280 300 166 420 330 415 M 24 23056 CC/W33 6 FRB 10/420

24056 CC/W33 2 FRB 13/420

C 3056 6 FRB 10/420

166 460 330 415 M 24 23156 CC/W33 2 FRB 10/460

C 3156 2 FRB 10/460

300 320 168 460 330 415 M 24 23060 CC/W33 2 FRB 25/460

24060 CC/W33 2 FRB 4/460

C 3060 2 FRB 25/460

180 500 360 445 M 30 23160 CC/W33 2 FRB 10/500

C 3160 2 FRB 10/500

G

H

L J

N

N

J for bearings with cylindrical bore da 320–460 mm

Shaft Housing Dimensions Mass Designations

Housing Components da A A1 H H1 H2 J J1 L N N1 s G complete with Housing only Seal End cover two seals mm mm kg –

320 350 310 591 300 110 710 190 830 50 42 22 36 301 SNL 3064 GTS SNL 3064 G TS 72 ETS 72

SNL 3064 GTNF SNL 3064 G TNF 72 ETS 72

370 330 631 320 115 750 200 880 50 42 23 36 339 SNL 3164 GTS SNL 3164 G TS 72 ETS 72

SNL 3164 GTNF SNL 3164 G TNF 72 ETS 72

340 370 330 631 320 115 750 200 880 50 42 23 36 339 SNL 3068 GTS SNL 3068 G TS 76 ETS 76

SNL 3068 GTNF SNL 3068 G TNF 76 ETS 76

340 810 220 SNL 3168 GTS SNL 3168 G

SNL 3168 GTNF SNL 3168 G

360 370 330 631 320 115 750 200 880 50 42 23 36 339 SNL 3072 GTS SNL 3072 G TS 80 ETS 80

SNL 3072 GTNF SNL 3072 G TNF 80 ETS 80

350 840 220 SNL 3172 GTS SNL 3172 G

SNL 3172 GTNF SNL 3172 G

380 340 810 220 SNL 3076 GTS SNL 3076 G

SNL 3076 GTNF SNL 3076 G

360 870 220 SNL 3176 GTS SNL 3176 G

SNL 3176 GTNF SNL 3176 G

400 350 840 220 SNL 3080 GTS SNL 3080 G

SNL 3080 GTNF SNL 3080 G

380 950 240 SNL 3180 GTS SNL 3180 G

SNL 3180 GTNF SNL 3180 G

420 360 870 220 SNL 3084 GTS SNL 3084 G

SNL 3084 GTNF SNL 3084 G

410 1 000 260 SNL 3184 GTS SNL 3184 G

SNL 3184 GTNF SNL 3184 G

440 380 950 240 SNL 3088 GTS SNL 3088 G

SNL 3088 GTNF SNL 3088 G

420 1 030 260 SNL 3188 GTS SNL 3188 G

SNL 3188 GTNF SNL 3188 G

460 420 1 030 260 SNL 3092 GTS SNL 3092 G

SNL 3092 GTNF SNL 3092 G

440 1 070 260 SNL 3192 GTS SNL 3192 G

SNL 3192 GTNF SNL 3192 G

Labyrinth seals Taconite seals TS design TNF design

Ca

H

H1

A

A A dadbDa s

Shaft Bearing Width across Eye bolts Appropriate bearings and associated components seating seals according to Spherical roller bearing Locating rings

DIN 580 CARB bearing da db Ca Da A2 A3 mm mm mm – –

320 340 181 480 360 445 M 30 23064 CC/W33 6 FRB 10/480

24064 CC/W33 2 FRB 10,5/480

C 3064 M 6 FRB 10/480

196 540 380 465 M 30 23164 CC/W33 2 FRB 10/540

C 3164 M 2 FRB 10/540

340 360 197 520 380 465 M 30 23068 CC/W33 4 FRB 16/520

24068 CC/W33 2 FRB 8,5/520

C 3068 M 4 FRB 16/520

580 23168 CC/W33

C 3168 M

360 380 198 540 380 465 M 30 23072 CC/W33 4 FRB 16/540

24072 CC/W33 2 FRB 9/540

600 23172 CC/W33

C 3172 M

380 560 23076 CC/W33

24076 CC/W33

620 23176 CA/W33

400 600 23080 CC/W33

24080 ECCJ/W33

C 3080 M

650 23180 CA/W33

C 3180 M

420 620 23084 CA/W33

24084 ECA/W33

700 23184 C/W33

440 650 23088 CA/W33

24088 ECA/W33

720 23188 CA/W33

460 680 23092 CA/W33

24092 ECA/W33

760 23192 CA/W33

G

H

L J

N

N

J for bearings with cylindrical bore da 480–500 mm

Shaft Housing Dimensions Mass Designations

Housing Components da A A1 H H1 H2 J J1 L N N1 s G complete with Housing only Seal End cover two seals mm mm kg –

480 410 1 000 260 SNL 3096 GTS SNL 3096 G

SNL 3096 GTNF SNL 3096 G

460 1 110 260 SNL 3196 GTS SNL 3196 G

SNL 3196 GTNF SNL 3196 G

500 420 1 030 260 SNL 30/500 GTS SNL 30/500 G

SNL 30/500 GTNF SNL 30/500 G

Labyrinth seals Taconite seals TS design TNF design

Ca

H

H1

A

A A dadbDa s

Shaft Bearing Width across Eye bolts Appropriate bearings and associated components seating seals according to Spherical roller bearing Locating rings

DIN 580 CARB bearing da db Ca Da A2 A3 mm mm mm – –

480 700 23096 CA/W33

24096 ECA/W33

790 23196 CA/W33

500 720 230/500 CA/W33

240/500 ECA/W33

G

H

L J

N

N

J

CARB bearings These bearings are a recent addition to the range of ball and roller bearings offered by SKF and are an SKF inven-tion. CARB bearings of series C 30 and C 31 can be incorporated in large SNL plummer block housings.

Although available in a caged as well as a full complement version, it is normally recommended that caged bearings are used in SNL housings.

CARB bearings are available with a tapered bore for mounting on an ad-apter sleeve or a withdrawal sleeve, as well as with a cylindrical bore.

Spherical roller bearings The spherical roller bearings which can be used in large SNL plummer block housings are those of series 230, 231 and 240. The bearings are available with tapered bore for mount-ing on adapter or withdrawal sleeves, or with cylindrical bore.

Other products for trouble-free operation

Robust, high-performance standard bearings SKF produces the spherical roller bearings and CARB bearings normally incorporated in large SNL plummer block housings in many sizes and several designs. Both bearing types are self-aligning. The degree of mis-alignment which can be accommod-ated depends on the bearing series and also on the seals used in the SNL housings.

The spherical roller bearings can be used for both locating and non-locating bearing arrangements. At non-locating positions, the bearing outer ring is free to move axially in its seating in the housing bore. CARB bearings, on the other hand, accommodate axial dis-placements within the bearing and are always non-locating. It is usual to combine a CARB bearing at the non-locating side with a spherical roller bearing arranged as a locating bearing at the other side.

Adapter sleeves These are slotted sleeves with a tapered outside diameter. The sizes used with bearings for SNL housings have an external taper of 1:12 and are supplied complete with lock nut and locking washer. Their dimensions are in accordance with ISO 2982-1:1995.

When using adapter sleeves on smooth shafts it is possible to locate the bearing at any position on the shaft and no additional axial location is required.

Withdrawal sleeves These are also slotted sleeves with a tapered outside diameter. The sizes used with bearings for SNL housings have an external taper of 1:12. Their dimensions are in accordance with

ISO 2982-1:1995.

Bearings on withdrawal sleeves must be mounted against a fixed abutment, e.g. a shaft shoulder. The withdrawal sleeve must be secured in position after it has been pressed into the bearing bore by a lock nut or end plate on the shaft. The nuts are not supplied with the sleeves.

For easy mounting – adapter and withdrawal sleeves Generally the bearings with a tapered bore incorporated in SNL plummer block housings are mounted on smooth or stepped shafts with the aid of an adapter sleeve or, on stepped shafts only, a withdrawal sleeve. These sleeves are produced by SKF in appro-priate sizes for the range of bearings which can be used in SNL housings.

The adapter sleeves are the more popular as they are more versatile and are easier to mount.

More information about � spherical roller bearings

(➔ brochure 5100) � CARB bearings (➔ brochure 5102) � adapter and withdrawal sleeves

(➔ catalogue 3766)

Pop Release units These units are plummer blocks with ready-lubricated bearings for easy installation. They comprise

� a one-piece plummer block housing of grey cast iron, � a spherical roller bearing of series 222 with special inner ring, � a special adapter sleeve, and � two seals of the “TriGard” type or two labyrinth seals.

The units are available in a locating and a non-locating version.

Lubricating greases for bearings Lubrication is a necessity for proper bearing performance. Grease is norm-ally used for applications involving SNL plummer blocks. SKF has put considerable effort into establishing a range of high-quality greases for ball and roller bearing lubrication.

The SKF SYSTEM 24 automatic lubricator can also be used with SNL plummer block housings. An adapter can be fitted to the standard drilled and tapped hole in the housing cap.

It should be remembered that surplus grease should be able to leave the housing.

Other products Lock nuts SKF lock nuts, also referred to as shaft nuts, are available in several designs to axially locate bearings on shaft ends. The most popular are those of series KM, KML and HM. These nuts have four or eight equally spaced slots in the outside diameter and are locked in position with locking washers or locking clips engaging a groove in the shaft. The nut dimensions are in ac-cordance with ISO 2982-2:1995 as are the dimensions of the series MB and MBL locking washers.

Other lock nuts produced by SKF include those of series KMT, KMTA, KMK and KMFE, that do not require a groove in the shaft.

Other bearing housings To meet a wide variety of application demands, SKF produces a compre-hensive range of bearing housings.

The majority of these are of the split plummer block type but the SKF range also includes

� one-piece plummer block housings, � flanged housings, � take-up housings, and � two-bearing housings.

Most of these housings are designed to take self-aligning bearings, and the range extends to shaft diameters up to and including 1 800 mm. Housings are available for oil lubrication as well as grease lubrication and also for bear-ings with cylindrical bore or for taper-ed bore, mounted on adapter or with-drawal sleeves. Smooth or stepped shafts can be used.

Various different types of seal are used. Most housings are made of grey cast iron but spheroidal graphite cast iron or cast steel housings are included in the range.

For further information, please con-tact SKF.

More information about � lock nuts (➔ brochure 4412 and catalogue 3766) � greases (➔ catalogue MP3000) � Pop Release units (➔ brochure

5103) � housings (➔ catalogue 4005)

Taking the temperature Noise testing

Recording vibration values using an SKF Microlog data collection unit

The MARLIN™ machine reliability inspection system

Condition monitoring equipment The goals of condition monitoring are to maximise the time that the machine is functioning well and to minimise the number of breakdowns, thereby signi-ficantly reducing operating downtime and maintenance cost.

To achieve this, it is recommended that the bearing and machine condition be monitored either periodically or con-tinuously. Condition monitoring enables incipient bearing damage to be detect-ed and evaluated, so that bearing replacement can be scheduled for a time when the machine is not in opera-tion, to avoid unplanned stoppages.

Applied to all machinery (not just sens-itive or problematic machines), con-dition monitoring improves machinery operation to an optimum level, often exceeding the original equipment specifications.

SKF provides a comprehensive range of condition monitoring equip-ment to measure all important para-meters. These include

� temperature, � speed, � noise, � oil condition, � shaft alignment, � vibration and � bearing condition.

The range includes lightweight, hand-held devices for manual use as well as complex continuous monitoring sys-tems for fixed installations in connec-tion with preventive maintenance.

One example is the Machine Reliability Inspection System MARLIN™ which is at the leading edge of techno-logy and allows storage of up to 2 000 measuring points. It can be used to diagnose machines and individual bearings and is backed by tailored software for the evaluation of the read-ings including enveloping vibration acceleration curves.

The SKF Group

– a worldwide corporation

SKF is an international industrial Group operating in some 130 countries and is world leader in bearings.

The company was founded in 1907 following the invention of the self-align-ing ball bearing by Sven Wingquist and, after only a few years, SKF began to expand all over the world.

Today, SKF has some 40 000 em-ployees and around 80 manufacturing facilities spread throughout the world.

An international sales network includes a large number of sales companies and some 7 000 distributors and retailers.

Worldwide availability of SKF products is supported by a comprehensive technical advisory service.

The key to success has been a con-sistent emphasis on maintaining the highest quality of its products and services. Continuous invest-ment in research and development has also played a vital role, resulting in many examples of epoch-making innovations.

The business of the Group consists of bearings, seals, special steel and a comprehensive range of other high-tech industrial components. The experi-ence gained in these various fields provides SKF with the essential know-ledge and expertise required in order to provide the customers with the most advanced engineering products and efficient service.

The SKF Group is the first major bearing manufacturer to have been granted approval according to ISO 14001, the international standard for environmental management systems. The certificate is the most com-prehensive of its kind and covers more than 60 SKF production units in 17 countries. The SKF Engineering & Research Centre is situated just outside Utrecht in The Netherlands. In an area of 17 000 square metres (185 000 sq.ft) some 150 scientists, engineers and support staff are engaged in the further improvement of bearing perform-ance. They are developing technologies aimed at achieving better materials, better designs, better lubricants and better seals

– together leading to an even better under-standing of the operation of a bearing in its application. This is also where the SKF Life Theory was evolved, enabling the design of bearings which are even more compact and offer even longer operational life.

SKF has developed the Channel concept in factories all over the world. This drastically reduces the lead time from raw material to end product as well as work in progress and finished goods in stock. The concept enables faster and smoother information flow, eliminates bottlenecks and bypasses unnecessary steps in production. The Channel team members have the know-ledge and commitment needed to share the responsibility for fulfilling objectives in areas such as quality, delivery time, production flow etc.

SKF manufactures ball bearings, roller bearings and plain bearings. The smallest are just a few millimetres (a fraction of an inch) in diameter, the largest several metres.

SKF also manufactures bearing and oil seals which prevent dirt from entering and lubricant from leaking out. SKF’s subsidiaries CR and RFT S.p.A. are among the world’s largest producers of seals.

® SKF and CARB are registered trademarks of SKF.

© Copyright SKF 2001 The contents of this publication are the copyright of the publisher and may not be reproduced (even extracts) unless permission is granted. Every care has been taken to ensure the accuracy of the information contained in this pub-lication but no liability can be accepted for any loss or damage whether direct, indirect or consequential arising out of the use of the information contained herein.

Publication 5101 E · June 2001

Printed in Sweden on environmentally friendly, chlorine-free paper (Multiart Silk) by Hyltebruks Tryckeri AB. www.skf.com

Section 2- Thrust Bearing