Lock Belt Sprockets ​S Type

Product Photos
  • The most standard type of Lock Belt Sprockets
  • *Strong fastening allows use with Ultra PX Belt
  • *Flat mounting is lightweight and space-saving
  • * The pulley body is made of "S-type aluminum," a high-strength aluminum alloy called super duralumin.
    The lineup also includes the "S-type plated specification," which features electroless nickel plating on the pulley body and sleeve.
  • * Effective in further reducing weight and inertia

Features

  • * Strong, non-backlash connection between shaft and pulley.
  • *No need for keys or axial retainers, positioning and phase alignment can be easily performed.
  • *Easy to install and remove with only a few bolts.
  • * Easy ordering by model number. No need to create a shaft bore machining drawing.

1. Fastening Principle

The inner diameter of Belt Sprockets and the outer diameter of the sleeve are tapered, and by tightening the tightening bolts,
Belt Sprockets move by sliding on a tapered surface.


At this time, a wedge action generates forces P and P' that press against the shaft and the inner surface of the tapered surface.
This P and P' force generates a frictional force that tightly fastens Belt Sprockets and shaft together.


*Click to enlarge the illustration

2. Lock Belt Sprockets S-type, plated finish

This is a plated version of Lock Belt Sprockets S-type, featuring electroless nickel plating.

  • The pulley body and sleeve are electroless nickel plated, and the bolts are treated with a special coating.
    In addition to strong, backlash-free fastening, it also offers improved corrosion resistance and dry fastening that eliminates the need for lubricants.

Catalogs and Instruction Manuals

Model number display example

• Material: Carbon steel or high-strength aluminum alloy

PT 30 P5M 10 AF -A - S S1 4 16
｜
Pulley		 ｜
Pulley
Number of teeth		 ｜
Types
(pitch)		 |
use
belt width
mm		 ｜
Pulley
Type
(shape)		 |
Material
None: Carbon steel for machine structures
-A: High-strength aluminum alloy		 |
Mounting shape
S: Standard
F: Flat		 ｜
sleeve
Frame number		 ｜
Fastening bolt
Number		 ｜
Shaft Hole Diameter
mm

Specifications: Plated finish

PT 30 P5M 10 AF - S S1 3 16 -K
｜
Pulley		 ｜
Pulley
Number of teeth		 ｜
Types
(pitch)		 |
use
belt width
mm		 ｜
Pulley
Type
(shape)		 |
Mounting shape
 S: Standard
F: Flat		 ｜
sleeve
Frame number		 ｜
Fastening bolt
Number		 ｜
Shaft Hole Diameter
mm		 |
Plating specifications

Product model number list

Pulley type

AF-S Standard Installation AF-F Flat Mount BF-S Standard Installation BF-F Flat Mount B-S Standard Installation B-F Flat Mounting

*Click on the model number to display detailed information.

Pitch
mm		 Pulley
format		 Material or specifications Basic model number Tooth number range Belt width mm
10 15 25 40 60
2 The C-type Lock Belt Sprockets supports a pitch of 2 mm.
3 The C-type Lock Belt Sprockets and N-type Lock Belt Sprockets are compatible with a pitch of 3 mm.
5 AF carbon steel P5M10AF-□S□□□ 24T～72T ○
BF P5M10BF-□S□□□
AF P5M15AF-□S□□□ ○
P5M25AF-□S□□□ ○
High-strength aluminum alloy P5M10AF-A-□S□□□ 24T～60T ○
BF P5M10BF-A-□S□□□
AF P5M15AF-A-□S□□□ ○
P5M25AF-A-□S□□□ ○
Plating specifications P5M10AF-□S□□□-K 25T～72T ○
P5M15AF-□S□□□-K ○
P5M25AF-□S□□□-K ○
8 AF carbon steel P8M15AF-□S□□□ 20T～72T ○
BF P8M15BF-□S□□□
AF P8M25AF-□S□□□ ○
BF P8M25BF-□S□□□
AF P8M40AF-□S□□□ ○
BF P8M40BF-□S□□□
AF P8M60AF-□S□□□ 28T～72T ○
BF P8M60BF-□S□□□
AF High-strength aluminum alloy P8M15AF-A-□S□□□ 20T～60T ○
P8M25AF-A-□S□□□ ○
P8M40AF-A-□S□□□ 24T～60T ○
Plating specifications P8M15AF-□S□□□-K 20T～72T ○
P8M25AF-□S□□□-K ○
P8M40AF-□S□□□-K 24T～72T ○
P8M60AF-□S□□□-K 26T～72T ○
14 AF carbon steel P14M40AF-□S□□□ 28T～72T ○
B P14M40B-□S□□□
AF P14M60AF-□S□□□ ○
B P14M60B-□S□□□
High-strength aluminum alloy ---
AF Plating specifications P14M40AF-□S□□□-K 28T～50T ○
P14M60AF-□S□□□-K ○
Back to top of this page