Products Power Transmission Products

  • RS Sprockets Pilot Bore Series

RS Tough Tooth Sprockets

Tough Tooth sprockets with improved strength and durability are optimized for Heavy Duty Chain.

Brings out the best performance of Heavy Duty Chain.

Applicable chain sizes: RS60 to RS240

This is a made-to-order product.

TOUGH TOOTH

1.Feature

  • Offers ample tooth strength for chains, and improved wear resistance.
  • Features a reinforced hub, and the bore keyway has 43% higher allowable surface pressure.

Comparison of hub strength

比較グラフ

Hub kW rating comparison

比較グラフ
  • Torque is calculated from the keyway's allowable surface pressure where a JIS standard parallel key (1) is used with maximum bore diameter.
  • Comparison example of RS80-SUP-H-1

2.Teeth specifications

Hardened teeth specifications
All Tough Tooth sprockets have hardened teeth.
An optional special coating that enhances tooth hardness is also available.
Optimal for harsh usage conditions and environments where you want to reduce both sprocket and chain replacement frequency.

3.Structure

RS Sprockets come in the following types.

For single stand chain For double stand chain
1B 1C 2B [2HB] 2C [2HC]
Structure fig. Structure fig. Structure fig. Structure fig.

HB/HC types are for multi-strand Heavy Duty chains such as RS-HT, Super-H Roller Chain, and Lambda Heavy Duty chain.

The transverse pitch of teeth on multi-strand Heavy Duty chains differs from standard specifications.

4.Reference Number System

RS80 - 1B 30T Q - T - K1
(1) (2) (3) (4) (5) (6)
  1. (1) Chain numbers: RS15-RS240
  2. (2) Other size and hub types
  3. (3) Number of teeth
  4. (4) Tooth hardening: blank = unhardened teeth, Q = hardened teeth
  5. (5) Series (TOUGH TOOTH)
  6. (6) Special coating (*MTO product)

Model numbers changed on April 1, 2017.

5.Options (MTO product)

Special coating
Sprocket features a coating that provides over HV800 hardness to the teeth to increase wear resistance. Effective in harsh usage conditions and environments where sprocket replacement frequency is high.
Special coating sprockets
Shaft bore finishing service
Shaft bore finishing available as an MTO product.
Shaft set delivery
Based on customer drawings we can quote the shaft, manufacture, and deliver as a set with the sprocket. An inspection report can reduce man-hours and cost for inspection and integration at the customer's site.

6. List of available tooth numbers and size

1B (Single strand B type) type

  •      RS Tough Tooth Sprocket
  •      Use standard RS Sprockets
  •      Made-to-order product
Number of teeth/Size RS60 RS80 RS100 RS120 RS140 RS160 RS180 RS200 RS240
9T
10T
11T
12T
13T
14T
15T
16T
17T
18T
19T
20T
21T
22T
23T
24T
25T
26T
27T
28T
30T
32T
34T
35T
36T
38T
More than 40T
  • Click here for weights and dimensions.
  • Contact a Tsubaki representative for more information on dimensions and other items not shown above.
  • Other sizes, numbers of teeth, and hub dimensions are available as MTO products.

2B (Double strand chain B type) type

  •      RS Tough Tooth Sprocket
  •      Use standard RS Sprockets
  •      Made-to-order product
Number of teeth/Size RS60 RS80 RS100 RS120 RS140 RS160 RS180 RS200 RS240
9T
10T
11T
12T
13T
14T
15T
16T
17T
18T
19T
20T
21T
22T
23T
24T
25T
26T
27T
28T
30T
32T
34T
35T
36T
38T
More than 40T
  • Click here for weights and dimensions.
  • Contact a Tsubaki representative for more information on dimensions and other items not shown above.
  • Other sizes, numbers of teeth, and hub dimensions are available as MTO products.

2B (Double strand chain B type) type

  •      RS Tough Tooth Sprocket
  •      Use standard RS Sprockets
  •      Made-to-order product
Number of teeth/Size RS60 RS80 RS100 RS120 RS140 to 240
9T
10T
11T
12T
13T
14T
15T
16T
17T
18T
19T
20T
21T
22T
23T
24T
25T
26T
27T
28T
30T
32T
34T
35T
More than 36T

2C (Double strand chain C type) type

  •      RS Tough Tooth Sprocket
  •      Use standard RS Sprockets
  •      Made-to-order product
Number of teeth/Size RS60 RS80 RS100 RS120 RS140 to 240
9T
10T
11T
12T
13T
14T
15T
16T
17T
18T
19T
20T
21T
22T
23T
24T
25T
26T
27T
28T
30T
32T
34T
35T
More than 36T
  • Click here for weights and dimensions.
  • The transverse pitch differs for RS-HT Chain and multi-strand (2 or more) Super-H Chains.
  • Contact a Tsubaki representative for more information on dimensions and other items not shown above.
  • Other sizes, numbers of teeth, and hub dimensions are available as MTO products.