679 680Plastics 2012 Non JIS material de�nition is listed on P.1359－1360.Delivery days depend on subsidiary. P.45

Slide Cores Loose Cores

INCLINED PIN LEADER OIL-FREE BUSHINGS－SINTERED ALLOY・THIN TYPE／COPPER ALLOY STANDARD TYPE－

OIL-FREE SLIDE BLOCKS FOR BLOCK LOOSE CORE

d Tolerance Dr6Thickness(N)

Hole size (Recommended) R Part Number L U/Price(Hole size) (H7) Type d 1～9

12 ＋0.049＋0.038 16 ＋0.034

＋0.023 2 16 ＋0.0180

1.0

KPBZ

12 20

16 ＋0.053＋0.042 21

＋0.041＋0.028

2.5 21

＋0.0210

1625

35

20 ＋0.060＋0.047 26 3 26

1.520

30

35

25 ＋0.065＋0.052 31 ＋0.050

＋0.034 3 31 ＋0.0250 25 35

dF7 Dm6Thickness(N)

Hole size (Recommended) Screw plugs Part Number L U/Price(Hole size) (H7) (Recommended) Type d 1～49

12＋0.034＋0.016

18 ＋0.018＋0.007 3 18 ＋0.018

0M4× 8

MPBZ

1220 25

16 22＋0.021＋0.008

3 22＋0.021

0

1620 25

30 35

20

＋0.041＋0.020

28 4 28

M5× 8

2030 35 40

25 33＋0.025＋0.009

4 33＋0.025

0

2535 40 50

30 38 4 38 M6×16 30 40 50

Part Number － LKPBZ20 － 30MPBZ16 － 20

Part Number － A

SCK34 － 10

3V Delivery days depend on subsidiary. XP.45

■Quantity discount rate X P.45

Quantity 1～9 10～19Rate － 5%

V To be quoted on price & lead time above Max. Q'ty.

B S L P Part Number A

1mm incrementsU/Price

Type W 1～9

20 5 30 MS8－20

SCK29 3～10

25 5 40 MS8－25 34 3～15

40 10 40 MS8－40 49 3～25

V Inclined pin tolerance: g6R Sintered alloy

V Inclined pin tolerance: g6R High tensile brass alloy Solid lubricant embedded

＋0.

015

0

8

0.1～0.3

Counterbore width (W＋1)Lower ejector plate

Upper ejector plate

Block loose core

Dowel pin

(1) Insert the slide block between the top and bottom ejector plates.(2) Fix the block loose core with the supplied φ8 dowel pin.

■Features and scope of use* Can also be used in an oil-free condition, but even better performance can be obtained

by using running-in grease or oil.KPBZ (Sintered alloy・thin type) MPBZ (Copper alloy・standard type)

Characteristics

・ Solid lubricant consisting mainly of graphite is finely dispersed through the sintered alloy, and the pores are impregnated with lubricating oil.

・ Has excellent coefficient of friction and wear resistance. The amount of oil impregnation is a high value of about 16%, ensuring stable performance over a long period.

・ There is no limit on the sliding direction. Because the solid lubricant is dispersed, the bushing can be adapted for short strokes, and can also be used for reciprocating motion, rocking and rotary motion as well.

・ Solid lubricant is embedded in a base body of high strength brass.

・ Exhibits high performance under high load and low-speed operation conditions.

・ Can be used for reciprocating motion, rocking motion, frequent starting and stopping, etc.

Lubrication Lubrication-free Lubrication-free Regular lubricationOperating temp range －40～120℃ －40～200℃ －40～150℃Allowable max. speed V 60m/min 30m/min 60m/minAllowable max. load P 2900N/cm2 (296kgf/cm2) 2900N/cm2 (296kgf/cm2)Allowable max. PV value

9800N/cm2・m/min(1000kgf/cm2・m/min)

9900N/cm2・m/min(1010kgf/cm2・m/min)

19515N/cm2・m/min(1990kgf/cm2・m/min)

Hardness 90HRM(JIS Z2245) HB210(JIS Z2243,2245)

0

20

40

80

100

5 10 15 20 25 30

Specialalloy

Graphite

Empty hole(including oil soaked)

Inclined pin

Inclined pin leader bushing

Slide unit

60

KPBZ20

Bear

ing

tem

pera

ture

(sintered alloy oil-free bushing)

( ℃)

φ20 copper alloy graphite embedded made by other company

23.19×10

3.95×10

－4

－4KPBZ Sintered alloy oil-free bushing

Product Name Ratio of wear amount mmMade byother company

Oil-free bushing with copper alloy graphite embedded

mm/(N/mm2・/s・hr)

X P.673

・ Mold closed ・ Mold opened

・ Burning alloy structure・Testing conditions

Testing machine : reciprocation testing machineBushing : d20-D28Side pressure: 120N／mm2 (12kgf／mm2)Speed : 30m／min (300spm)Stroke amount : 50mmLubrication : spreading initial simple grease

Endurance time (hr)Transition of bearing temperature against different materials

●MPBZ

3 XP.46●KPBZ

V Stock availability depends on subsidiary. XP.45

V Delivery days depend on subsidiary. XP.45

KPBZ (Sintered alloy・thin type)

1.6

1/3 1/3 1/3

L

d

φDr

6

G

1.6G

2－R

3－0.03－0.05

2－C0.5

※d12－L20 Lead-in part

Thick

ness

(N)

MPBZ (Copper alloy・standard type)

R1～3

0～4

10°

1～2.5

D

－0.1－0.3

C0.3～0.5

m6

1.6

1.6

15°

d

L

A

1.66.3

A part detail(Both sides)

Screw plug(Reference) Th

ickn

ess

(N)

SCK

W±0.1

±0.1

A＋0.2B±0.1

0

8－0.

013

－0.

028

±0.

1

5 5S L1.0

28

±0.

0218

1.6

1.6

＋0.015

0

φ8

■Quantity discount rate X P.45●KPBZ

Quantity 1～9 10～19 20～29 30～50Rate － 5% 10% 15%

V To be quoted on price & lead time above Max. Q'ty.●MPBZ

Quantity 1～49 50～74 75～99 100～199Rate － 5% 10% 15%

V To be quoted on price & lead time above Max. Q'ty.

R High strength brass casting class 4 (CAC304)(Old JIS : HBsC4)Special solid lubricant embedded

P Dowel pin 1 pc.

QuotationQuotation

Quo

tati

on

Quo

tati

on

Quo

tati

on

Quo

tati

on

V Non JIS material definition is listed on P.1359 - 1360

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