Page 471 - SKF-bearing-housings

Lubrication

Lubrication is used when bearings are relubricated via the
outer ring.
All SDAF pillow blocks can accommodate For highly contaminated environments and
grease, oil bath or circulating oil lubrication slow speeds, fill the housing to 70 to 80%. For
systems. Any sealing solution can be used with additional information, contact the SKF appli-
grease lubrication, while for oil lubrication SKF cation engineering service.
does not recommend using labyrinth rings in Quantities for 20 and 40% fills are listed in
the LER series. tables 7 and 8. The values are valid for a typi-
The lubricant should be selected based on cal lithium grease (about 0.57 oz/in ). The
3
the operating conditions of the bearing. For grease to fill labyrinth seals or taconite heavy-
additional information about lubricant selec- duty seals is not included.
tion, refer to the information available online In most applications, the initial grease fill
at skf.com/bearings. will adequately lubricate the bearing until the
grease is exchanged during the next planned
maintenance interval.
Initial grease fill
If no other requirements exist, the free space
in the bearing should be completely filled with
grease and the free space in the housing should
be filled 20 to 40% of its volume. A 40% grease
fill is required when bearings have to be relu-
bricated from the side, while a 20% grease fill

Table 7 Table 8 9
Initial grease fill for SDAF pillow block housings Initial grease fill for SDAF
extended range pillow block housings
Housing Initial fill Housing Initial fill
Size 20% 40% Size 20% 40%
– oz. – lb.
316 616 7 14 3152 3248 4 8
220 317 520 617 7 14 3060 3156 3252 6 13
318 618 9 18 3064 3160 3256 6 11
222 522 9 18 3072 3164 7 14
224 320 524 620 14 28 3076 3260 7 15
226 322 526 622 14 28 3168 3264 9 18
228 528 18 36 3080 3172 9 19
230 324 530 624 22 44 3084 3176 7 14
232 326 532 626 28 57 3088 3180 3268 9 19
234 328 534 628 31 62 3272 11 22
236 330 536 630 46 93 3092 3276 9 19
238 332 538 632 59 119 3096 3184 16 32
240 334 540 634 76 152 3188 14 28
336 636 90 180 30/500 3280 15 31
244 338 544 638 97 194 30/530 3192 3284 14 29
340 640 124 248
3196 3288 13 27
3292 19 38
3296 16 32

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