Page 251 - needle bearings

Cam followers stud type truck rollers (With recessed slot for screwdriver use and tapped hole)
NTN

Accessories
Nominal Nominal No. Nominal No. of Nominal No. of
number of of threaded plug with applied hexagon nut
applied bearing grease nipple hexagon socket
30ʙ 35 JIS A-M6F M6ʷ0.75ʷ6R 1M12ʷ1.5ʙ1M16ʷ1.5
40ʙ180 JIS A-PT!/8 PT!/8ʷ7R 1M18ʷ1.5ʙ1M64ʷ3
˞Table 3 on B-179 and Table 5-2 on B-180 shows the respective
ɹboundary dimensions of grease nipple and threaded plug with
ɹhexagon socket.

Type KRVTʝLL
(Full-complement roller and sealed type)

Load ratings of truck Limiting speeds Maximum Bearing numbers Mass Stud
tightening torque diameter
N kgf r/min Nŋm kgfŋm Without seal With seal kg mm
grease oil
Spherical Cylindrical Spherical Cylindrical Cylindrical Spherical Cylindrical Spherical
outer ring outer ring outer ring outer ring outer ring outer ring outer ring outer ring (approx.)
1 080 3 400 110 350 ˞13 000 ˞16 000 3 0.3 KRVT16 KRVT16X KRVT16LL KRVT16XLL 0.020 6
1 380 4 050 141 415 10 000 ˞13 000 8 0.8 KRVT19 KRVT19X KRVT19LL KRVT19XLL 0.032 8
1 690 5 150 172 525 8 500 ˞11 000 14 1.4 KRVT22 KRVT22X KRVT22LL KRVT22XLL 0.047 10
2 120 6 100 216 620 8 500 ˞11 000 14 1.4 KRVT26 KRVT26X KRVT26LL KRVT26XLL 0.061 10

2 620 7 700 267 785 6 500 8 500 20 2 KRVT30 KRVT30X KRVT30LL KRVT30XLL 0.089 12
2 860 8 200 291 835 6 500 8 500 20 2 KRVT32 KRVT32X KRVT32LL KRVT32XLL 0.100 12
3 200 11 900 325 1 220 5 500 7 000 52 5.3 KRVT35 KRVT35X KRVT35LL KRVT35XLL 0.172 16
3 850 14 500 390 1 480 4 500 6 000 76 7.8 KRVT40 KRVT40X KRVT40LL KRVT40XLL 0.252 18

4 700 21 000 480 2 150 4 000 5 000 98 10 KRVT47 KRVT47X KRVT47LL KRVT47XLL 0.390 20
5 550 23 300 565 2 370 4 000 5 000 98 10 KRVT52 KRVT52X KRVT52LL KRVT52XLL 0.465 20
6 950 34 500 710 3 500 3 300 4 500 178 18 KRVT62 KRVT62X KRVT62LL KRVT62XLL 0.800 24
8 050 38 500 820 3 900 3 300 4 500 178 18 KRVT72 KRVT72X KRVT72LL KRVT72XLL 1.05 24

9 800 53 000 1 000 5 400 2 600 3 500 360 37 KRVT80 KRVT80X KRVT80LL KRVT80XLL 1.56 30
11 400 59 000 1 160 6 100 2 600 3 500 360 37 KRVT90 KRVT90X KRVT90LL KRVT90XLL 1.97 30

Remarks: The allowable running speed of Type KRVTŋŋŋŋLL and KRVTŋŋŋŋXLL with ˞marked seal is approximately 10 000r/min.

B-189