Timing Belt Pulleys / S3M / Flanged Pulley Selectable / Configurable / Material Selectable / Treatment Selectable(Artikelnummerlista: 8-sida)

Back to the Category Toothed Pulleys/Timing Pulleys/Idler Pulleys

Technical Drawing - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Standard Tooth Profile

Shape K

[ ! ]

Shape A

[ ! ]

Shape B

Available dimensions and tolerances can be found under the tab More Information.
 

Basic Properties (e.g., material, hardness, coating, tolerance) - Toothed Pulleys/Timing Pulleys/Idler Pulleys

● Shaft Bore Specification
Select shaft bore spec mark and each dim. from the table below.

[ ! ] Surface treatment may not be applied to the shaft bores.

H round hole

P Round Hole + Tap

N New JIS Keyway + Tap
C Old JIS Keyway + Tap

 

[ ! ] For A-Shape pulley, the screw holes are set at around 120° to keep away from peaks.　
[ ! ] Shaft Bore Specs. P is not available for Shape A with 22 or less teeth and nominal width 060.

V Stepped Hole
 

F Stepped Hole (Counterbored Hole on the Hub Side)

Y Both Ends Stepped Hole
 

WB Two-stepped hole
 

[NG] Not applicable to Shape K
[ ! ] Z - d ≥ 2
[ ! ] 2.0 ≤ J ≤ W－2.0

[ ! ] Applicable to Shape B only
[ ! ] Z - d ≥ 2
[ ! ] 2.0 ≤ J ≤ L－2.0

[ ! ] Applicable to Shape A only
[ ! ] Q (R)－Y ≥ 2
[ ! ] S+T ≤ W－3.0
[ ! ] Shaft Bore Dia. d is +0.1 / 0
[ ! ] S (T) ≥ 3.0

[ ! ] Applicable to Shape A only
[ ! ] Q－R ≥ 2
[ ! ] R－WB ≥ 2
[ ! ] S+T ≤ W－3.0
[ ! ] S (T) ≥ 3.0

Further specifications can be found under the tab More Information.
 

Composition of a Product Code - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Alterations - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Alterations	Set Screw Angle Change	No Flange	Single Flange	Flange Cut
Code	KC90	NFC	RFC·LFC	FC
Spec.	Changes an angle of set screw to 90°. [ ! ] For A-Shape pulley, the screw holes are set at around 90° to keep away from peaks.	(Flange 2 pcs. Included) Ordering Code NFC	(Flange 1 pc. Included) Ordering Code RFC Application Notes [NG] Not applicable to Shape K	Cut the flange O.D. in 0.5 mm increments. Ordering Code FC17 Application Notes [ ! ]FC ≥ (O. D.) +1 [ ! ]FC ≤ F−2 [ ! ] No surface treatment is applied on flange circumference.

Alterations	Retaining Ring Groove	Taper for Bearing Holder	Hub Shortening	Tapped Hole Dimensions	Included Set Screw Length Change
Code	SRG	BTC	BC	TPC	SLH
Spec.	Retaining Ring Groove applicable to the shaft dia. of stepped hole is machined. Specify SRG 2.5 to 14.5 mm 0.5 mm Increments Application Notes [ ! ] Minimum Thickness: 2 mm [ ! ] Applicable to Shaft Bore Specs. V and F only [ ! ] Standards of retaining ring groove for Z dim. is applied [ ! ] n ≤ J−SRG−m Ordering Code SRG7	Taper for retaining bearing inner ring 　 Ordering Code BTC4-TL1.5 Application Notes [ ! ] Applicable to Shape A only [ ! ] Applicable to Shaft Bore Specs. H and P only [ ! ]TL < L−W [ ! ] When E-D ≤ 6, one side installed and 1 pc. of flange included	Cuts the hub length in 0.5 mm increments. Ordering Code BC6.5 Application Notes [!] Shaft Bore Specs. H, V, F: 3 ≤ BC < L－W [!] Shaft Bore Specs. P, N, C: M+3 ≤ BC < L−W [NG] Not applicable to Shape K and A	Ordering Code TPC5 Application Notes [ ! ] Applicable to Shaft Bore Specs. P, N, C only M TPC M3 M4 M4 M3·M5 M5 M4·M6 M6 M5	Ordering Code SLH10 Application Notes [ ! ] Applicable to Shaft Bore Specs. P, N, C only Set Screws SLH M3 × 3 6 M4 × 3 5·8 M5 × 4 6·10 M6 × 5 10

Alterations	Add Side Holes [!] Conditions may vary depending on the shaft bore specs.
	Side Tapped Hole	Side Through Hole	Side Counterbored
Code	QTC·QFC·QSC	KTC·KFC·KSC	ZTC·ZFC·ZSC
Spec.	Machines tapped hole on the side surface of hub side. Ordering Code QTC28−M4 Q□C Selection Specify the hole position (P. C. D. dim.). M Selection M3, M4, M5, M6, M8 Application Notes [NG] Not applicable to Shape K [ ! ] Minimum Thickness: 2 mm [!] Conditions may vary depending on the shaft bore specs. (6 Locations) (4 Locations) (3 Locations)	Machines through hole on the side surface. Ordering Code KTC28−K4.5 K□C Selection Specify the hole position (P. C. D. dim.). Specify K K4.0 to 13.0 (0.5 mm Increments) Application Notes [NG] Not applicable to Shape K [ ! ] Minimum Thickness: 2 mm [!] Conditions may vary depending on the shaft bore specs. (6 Locations) (4 Locations) (3 Locations)	Machines counterbored hole on the side surface. Ordering Code ZTC28−ZM4 Z□C Selection Specify the hole position (P. C. D. dim.). ZM Selection ZM3, ZM4, ZM5, ZM6, ZM8 Application Notes [NG] Not applicable to Shape K [ ! ] Minimum Thickness: 2 mm [!] Conditions may vary depending on the shaft bore specs. (6 Locations) (4 Locations) (3 Locations)

General Information - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Selection details of toothed pulleys/timing pulleys/idler pulleys

- Material: aluminum, steel, stainless steel (stainless steel), plastic

- Coatings: uncoated, burnished, anodized, nickel-plated

- Profile form: 1.5GT, 2GT, 3GT, 5GT, P2M, P3M, P5M, P8M, S2M, S3M, S5M, S8M, S14M, T2.5, T5, T10, AT5, AT10, 5M, 8M, 14M, 8YU, H, L, MXL, XL, PowerGrip GT3: MR2, MR3, MR5

- ISO tolerances: H7

- Belt width (mm): 4, 4.8, 6, 6.4, 7, 7.9, 9, 9.5, 10, 12, 12.7, 15, 18, 19.1, 20, 25, 25.4, 26, 28, 30, 31, 38,1, 40, 50, 50.8, 53, 60, 74, 76.2, 100

- Belt width (inches): 0.19, 0.25, 0.31, 0.37, 0.5, 0.75, 1, 1.5, 2

- Number of teeth: 10 to 72

Description/Basics

The toothed pulley for mechanical engineering is intended for the transmission of force and torque. Timing pulleys enable a gear ratio of speeds through belt pulleys of different sizes. Timing pulleys are more efficient, durable and significantly more maintenance-friendly compared to chain transmissions.

How much torque and load a timing pulley can transmit depends on the width of the belt. The width of the belt must be calculated. It is recommended to ensure the belt is correctly tensioned. MISUMI already offers the suitable idler pulley and return rollers with integrated ball bearings. For design and design help follow this link.

Different profile shapes of the toothed belts and belt pulleys are responsible for the transmission of power. Depending on the positioning accuracy, the applied torque and the conveying weight, MISUMI offers the fitting pulley. Toothed belt drives are generally used in the industry in three areas:
Positioning: Timing pulleys is often used in 3D printers. A toothed pulley with a semi-circular profile (e.g., GT) is often used for the required position accuracy of a 3D printers. The round shape offers the benefit of little play when the direction changes.
Drive: toothed pulleys are also used for high torque. In most cases, a timing pulley with a rounded trapezoidal profile (e.g., S8M) is used. These are particularly well suited for the transmission of high forces, which occur in drives of various applications in order to drive mechanical components.
Conveying: toothed pulleys can also be used for transporting loads. A straight trapezoidal profile is often used for this purpose (e.g., AT). This toothed pulley shape offers a large surface for loading and transmitting of loads.

Which toothed pulley or timing pulley is the right one for your application depends on the respective task of the toothed belt drive. Different toothed disc profiles have proven themselves for each type of application.

Various bore hole shapes and fastening variants are available for shaft mounting. These allow fastening via set screws, keyways and by means of Mecha locks. Fastening via a clamping sleeve has the further advantage that it allows adjusting the alignment continuously. The MISUMI product assortment has these ready-to-install.

Application Examples - Toothed Pulleys/Timing Pulleys/Idler Pulleys

Application example: idler pulley
(1) Idler pulleys, (2) chain tensioner

Application example: deflection roller
S (1) Toothed pulleys with crimp disc, (2) nut, (3) washer, (4) cantilever shaft, (5) retaining ring

Application example: timing pulleys
(1) Flat head screw, (2) Timing pulley, (3) Timing belt, (4) Screw-on terminal

Application example: of toothed belt drives
(1) Toothed belt, (2) driven toothed pulley with crimp disc, (3) idler pulley with crimp disc, (4) driving toothed pulley with crimp disc

Industrial Applications

3D printer industry

Automotive industry

Pharmaceutical industry

Packaging industry