Page 253 - needle bearings

Cam followers stud type truck rollersʢEccentric shaft typeʣ
NTN

Eccentric Eccentric
position position

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
16ʙ26 NIP-X30 M4ʷ0.7 ʷ4R 1M 6ʷ1 ʙ1M10ʷ1.25
30ʙ35 JIS A-M6F M6ʷ0.75ʷ6R 1M12ʷ1.5ʙ1M16ʷ1.5
40ʙ90 JIS A-PT!/8 PT!/8ʷ7R 1M18ʷ1.5ʙ1M30ʷ1.5
˞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 KRVU Type KRVUʝLL
(Full complement) (Full complement sealed type)

Load ratings of truck Limiting speeds Maximum Bearing numbers Mass Stud
tightening (approx.) diameter
torque
N kgf r/min kg mm
grease oil Nŋm kgfŋm Type KRU 1ʣ Type KRUʝʝLL 1ʣ
Cylindrical Spherical Cylindrical Spherical Type Type
outer ring outer ring outer ring outer ring Type KRVU Type KRVUʝʝLL KRU KRVU
1 080 3 400 110 350 ˞19 000 ˞25 000 3 0.3 KRU16 KRU16LL 0.019 ʵ 6
1 080 3 400 110 350 ˞13 000 ˞16 000 3 0.3 KRVU16 KRVU16LL ʵ 0.020 6
1 380 4 050 141 415 ˞15 000 ˞20 000 8 0.8 KRU19 KRU19LL 0.031 ʵ 8
1 380 4 050 141 415 10 000 ˞13 000 8 0.8 KRVU19 KRVU19LL ʵ 0.032 8
1 690 5 150 172 525 ˞12 000 ˞16 000 14 1.4 KRU22 KRU22LL 0.046 ʵ 10
1 690 5 150 172 525 8 500 ˞11 000 14 1.4 KRVU22 KRVU22LL ʵ 0.047 10
2 120 6 100 216 620 ˞12 000 ˞16 000 14 1.4 KRU26 KRU26LL 0.059 ʵ 10
2 120 6 100 216 620 8 500 ˞11 000 14 1.4 KRVU26 KRVU26LL ʵ 0.061 10
2 620 7 700 267 785 10 000 ˞13 000 20 2 KRU30 KRU30LL 0.087 ʵ 12
2 620 7 700 267 785 6 500 8 500 20 2 KRVU30 KRVU30LL ʵ 0.089 12
2 860 8 200 291 835 10 000 ˞13 000 20 2 KRU32 KRU32LL 0.097 ʵ 12
2 860 8 200 291 835 6 500 8 500 20 2 KRVU32 KRVU32LL ʵ 0.100 12
3 200 11 900 325 1 220 8 000 ˞11 000 52 5.3 KRU35 KRU35LL 0.169 ʵ 16
3 200 11 900 325 1 220 5 500 7 000 52 5.3 KRVU35 KRVU35LL ʵ 0.172 16
3 850 14 500 390 1 480 7 000 9 000 76 7.8 KRU40 KRU40LL 0.248 ʵ 18
3 850 14 500 390 1 480 4 500 6 000 76 7.8 KRVU40 KRVU40LL ʵ 0.252 18
4 700 21 000 480 2 150 6 000 8 000 98 10 KRU47 KRU47LL 0.386 ʵ 20
4 700 21 000 480 2 150 4 000 5 000 98 10 KRVU47 KRVU47LL ʵ 0.390 20
5 550 23 300 565 2 370 6 000 8 000 98 10 KRU52 KRU52LL 0.461 ʵ 20
5 550 23 300 565 2 370 4 000 5 000 98 10 KRVU52 KRVU52LL ʵ 0.465 20
6 950 34 500 710 3 500 5 000 6 500 178 18 KRU62 KRU62LL 0.790 ʵ 24
6 950 34 500 710 3 500 3 300 4 500 178 18 KRVU62 KRVU62LL ʵ 0.800 24
8 050 38 500 820 3 900 5 000 6 500 178 18 KRU72 KRU72LL 1.04 ʵ 24
8 050 38 500 820 3 900 3 300 4 500 178 18 KRVU72 KRVU72LL ʵ 1.05 24
9 800 53 000 1 000 5 400 4 000 5 500 360 37 KRU80 KRU80LL 1.55 ʵ 30
9 800 53 000 1 000 5 400 2 600 3 500 360 37 KRVU80 KRVU80LL ʵ 1.56 30

Remarks: For the cam follower with ˞marked seal, the allowable running speed is approximately 10 000 r/min.

B-191