Page 242 - needle bearings

Cam followers stud type truck rollers
NTN

Table 4 Grease nipple applied bearing types and grease nipple dimension codes
Nipple applied bearing types
Nominal
nipple number KRɼKRV KRʝHɼ CRV CRVʝH NUKR NUKRʝH KRTɼKRVT NUKRT KRUɼKRVU NUKRU
KRVʝH
NIP-B3 ʕ ʕ 8.8-1 ʕ ʕ ʕ ʕ ʕ ʕ ʕ
NIP-B4 16ʙ26 22ʙ26 10ʙ18 12ʙ18 ʕ ʕ ʕ ʕ ʕ ʕ
NIP-B6 30ʙ40 30ʙ40 20ʙ44 20ʙ44 30ʙ40 30ʙ40 ʕ ʕ ʕ ʕ
NIP-B8 47ʙ90 47ʙ90 48ʙ96 48ʙ96 47ʙ90 47ʙ90 ʕ ʕ ʕ ʕ
NIP-X30 ʕ ʕ ʕ ʕ ʕ ʕ 16ʙ26 ʕ 16ʙ26 ʕ
JIS A-M6F ʕ ʕ ʕ ʕ ʕ ʕ 30ʙ32 30 30ʙ35 30ʙ35
JIS A-PT1/8 ʕ ʕ ʕ ʕ 100ʙ180 100ʙ180 35ʙ90 35ʙ180 40ʙ90 40ʙ180
(Threaded side)

Table 5-1 Plug dimension Table 5-2 Plug dimension
unit : mm Threaded plug unit : mm
Special-purposed with hexagon socket
plug Nominal number D H Nominal number d H Width across
flats h
D
SEN 3 3 3
M4X0.7X4R M4X0.7 4 2
SEN 4 4 4
M6X0.75X6R M6X0.75 6 3
H SEN 6 6 6 PT1/8X7R PT1/8 7 5
SEN 8 8 8

Table 6 Plug applied bearing types and plug dimension codes
Plug applied bearing types
Plug
KRɼKRV KRʝHɼ CRV CRVʝH NUKR NUKRʝH KRTɼKRVT NUKRT KRUɼKRVU NUKRU
KRVʝH
SEN3 ʕ ʕ 8.8-1 ʕ ʕ ʕ ʕ ʕ ʕ ʕ
SEN4 16ʙ26 22ʙ26 10ʙ18 12ʙ18 ʕ ʕ ʕ ʕ ʕ ʕ
SEN6 30ʙ40 30ʙ40 20ʙ44 20ʙ44 30ʙ40 30ʙ40 ʕ ʕ ʕ ʕ
SEN8 47ʙ90 47ʙ90 48ʙ96 48ʙ96 47ʙ180 47ʙ90 ʕ ʕ ʕ ʕ
M4X0.7X4R ʕ ʕ ʕ ʕ ʕ ʕ 16ʙ26 ʕ 16ʙ26 ʕ
M6X0.75X6R ʕ ʕ ʕ ʕ ʕ ʕ 30ʙ32 30 30ʙ35 30ʙ35
PT1/8X7R ʕ ʕ ʕ ʕ ʕ 100ʙ180 35ʙ90 35ʙ180 40ʙ90 40ʙ180

La Table 7 Mandrels used for plug press-fitting
unit : mm
Grease feed hole dia. Mandrel dimension
0
0
n Da Db –0.1 La –0.1
3 8 2.8 1.5
Da Db n
4 10 3.8 1.5
6 12 5.8 1.5
Plug
8 15 7.8 2.5

B-180