Page 656 - MiSUMi 2025

7 Timing Pulleys L 7

Timing Pulleys & Idlers & Belts / Round Belt Pulleys & Idlers & Belts Products 9.525mm Type Pulley M Material Flange S Surface Treatment Round Belt Pulleys & Idlers & Belts Timing Pulleys & Idlers & Belts /

L
New

E-ATPB
Timing Pulleys E-ATPA Aluminum Alloy Clear Anodized Pulleys Timing
Black Anodized
E-ATPK
Hard Anodized*
P.07-007 E-ATP Black Oxide Film P.07-007
General Structural Steel
E-ATPP or Carbon Steel Electroless Nickel Plating
Idlers *Film hardness for hard anodized treatment is 300 HV min. Idlers

P.07-033 QPulley Shape B Shape Type & Nominal Width (* dimension) P.07-033
Timing Belts 4 2.5 *W 2.5 4 2.5 *W *L 2.5 (L-W)/2 (ISO Standard Rack Dimensions) Belt Type Shape 19 46(d=60·72) Timing Belts
Pulley
A Shape
W
L
Tooth Profile
*A
31
14
L050
*A
38
P.07-055 W/2 2-M 2-M 20° R0.86 20° 2.13 L075 21 26 46(d=60·72) P.07-055
Round Belt Pulleys & Idlers & Belts P.D. O.D. dH7 E F P.D. O.D. dH7 D E F Tooth groove dimensions slightly vary L150 40 45 53(d=60·72) Idlers & Belts Round Belt Pulleys &
44
L100
27
32
R0.53
3.10
O.D.
P.D.
57
according to the number of teeth.
P.07-088 (t1.6) (t1.6) (Pitch: 9.525mm) Threaded Hole Size Table P.07-088
(Shaft Bore Specs: P · N )
dH7 Shaft Bore ID M (Coarse Thread)
QShaft Bore Specs.
6~12 M4
5 H Round Hole 5 P Round Hole + Tap 5 N New JIS Keyway + Tap
13~17 M5
QKeyway Size
18~30 M6
bjs9 t
(120°)
2-R0.2 31~45 M8
or Less
46~57 M10
HH7 PH7 N H7 dH7 E For more tap dimensions, refer to the
MISUMI website.
E No tapped holes or set E For Shape A pulley, the set
screws. screw hole is set around 120°
to avoid interference with the N/NK: New JIS (B1301) keyway size table
tooth top.
Shaft Bore Keyway
Spec. Shaft Bore Tolerance b js9 t Tolerance
N 8
+ 0.015 3 ±0.0125 1.4
N 10 0
NK 10 + 0.015 4 ±0.0150 1.8
0
N 11~12 4 1.8 + 0.1
0
N 13~17 + 0.018 5 ±0.0150 2.3
0
N 18 6 2.8
N 19~22 + 0.021 6 ±0.0150 2.8
0
E For more keyway dimensions, refer to the
MISUMI website.
07-017 Timing Pulleys