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New diameter sizes (13, 16, 17, 18 and 22) are added for h9 tolerance types. [3/31/23]
Straight Rotary Shafts with One End Tapped and Key Grooves are available in 1045 Carbon Steel or Equivalent and 304 Stainless Steel, with the following options for Surface Treatment : Black Oxide, and Electroless Nickel Plating or No Surface Treatment.
[Diameter range] 6mm - 50mm
[Length range]15mm - 1000mm. Use the alteration LKC to specify the length in 0.1mm increment.
Inch option available, please click Here.
Part Number
Configured Part Number is shown.
Type | D Tolerance | [ M ]Material | [ S ]Surface Treatment | |
① | NSFMKRT | h9 (Cold-drawn) | 1045 Carbon Steel or Equivalent | - |
SFMKRT | Black Oxide | |||
PSFMKRT | Electroless Nickel Plating | |||
SSFMKRT | 304 Stainless Steel | - | ||
② | NSFHKRT | h7 (Ground) | 1045 Carbon Steel or Equivalent | - |
SFHKRT | Black Oxide | |||
PSFHKRT | Electroless Nickel Plating | |||
SSFHKRT | 304 Stainless Steel | - | ||
③ | NSFGKRT | g6 (Ground) | 1045 Carbon Steel or Equivalent | - |
SFGKRT | Black Oxide | |||
PSFGKRT | Electroless Nickel Plating | |||
SSFGKRT | 304 Stainless Steel | - |
Part Number | - | L | - | M | - | Keyway ① | - | Keyway ② | - | Keyway ③ | |||||||
KA | - | A | KB | - | B | KC | - | C | |||||||||
1 Keyway 2 Keyways 3 Keyways | SFMKRT10 SFHKRT30 SFGKRT25 | - - - | 325 300 350 | - - - | M4 M10 M8 | - - - | KA20 KA20 KA10 | - - - | A50 A50 A60 | - - | KB120 KB90 | - - | B20 B30 | - | KC210 | - | C30 |
Part Number | L=0.1mm Increment | M (Coarse) Selection | Keyway ① | Keyway ② | Keyway ③ | ||||||||||||
Type | Dh9 | KA, A | KB, B | KC, C | |||||||||||||
Tolerance | 1mm Increment | ||||||||||||||||
NSFMKRT SFMKRT PSFMKRT SSFMKRT (D6 is not available for SSFMKRT.) | 6 | 0 -0.030 | 15.0~400.0 | (2.6) (3) | (4) | KA+A≤L KA≥0 b≤A≤100 | KB+B≤L KB≥KA+A b≤B≤100 | KC+C≤L KC≥KB+B b≤C≤100 | |||||||||
8 | 0 -0.036 | 15.0~500.0 | (2.6) (3) | (4) | (5) | (6) | |||||||||||
10 | 15.0~600.0 | 3 | 4 | (5) | (6) | ||||||||||||
12 | 0 -0.043 | 15.0~700.0 | 4 | 5 | (6) | (8) | |||||||||||
15 | 15.0~800.0 | 4 | 5 | 6 | (8) | ||||||||||||
20 | 0 -0.052 | 30.0~1000.0 | 4 | 5 | 6 | 8 | 10 | ||||||||||
25 | 50.0~1000.0 | 4 | 5 | 6 | 8 | 10 | 12 | ||||||||||
30 | 60.0~1000.0 | 6 | 8 | 10 | 12 | 16 | |||||||||||
35 | 0 -0.062 | 70.0~1000.0 | 6 | 8 | 10 | 12 | 16 | 20 |
Part Number | L=0.1mm Increment | M (Coarse) Selection | Keyway ① | Keyway ② | Keyway ③ | ||||||||||||
Type | Dh7 | KA, A | KB, B | KC, C | |||||||||||||
Tolerance | 1mm Increment | ||||||||||||||||
NSFHKRT SFHKRT PSFHKRT SSFHKRT | 6 | 0 -0.012 | 15.0~400.0 | (2.6) (3) | (4) | KA+A≤L KA≥0 b≤A≤100 | KB+B≤L KB≥KA+A b≤B≤100 | KC+C≤L KC≥KB+B b≤C≤100 | |||||||||
8 | 0 -0.015 | 15.0~500.0 | (2.6) (3) | (4) | (5) | (6) | |||||||||||
10 | 15.0~600.0 | 3 | 4 | (5) | (6) | ||||||||||||
12 | 0 -0.018 | 15.0~700.0 | 4 | 5 | (6) | (8) | |||||||||||
15 | 15.0~800.0 | 4 | 5 | 6 | (8) | ||||||||||||
17 | 30.0~900.0 | 4 | 5 | 6 | (8) | (10) | (12) | ||||||||||
20 | 0 -0.021 | 30.0~1000.0 | 4 | 5 | 6 | 8 | (10) | (12) | (16) | ||||||||
25 | 50.0~1000.0 | 4 | 5 | 6 | 8 | 10 | 12 | (16) | |||||||||
30 | 60.0~1000.0 | 6 | 8 | 10 | 12 | 16 | |||||||||||
35 | 0 -0.025 | 70.0~1000.0 | 6 | 8 | 10 | 12 | 16 | 20 | |||||||||
40 | 80.0~1000.0 | 10 | 12 | 16 | 20 | 24 | |||||||||||
50 | 100.0~1000.0 | 12 | 16 | 20 | 24 | 30 |
Part Number | L=0.1mm Increment | M (Coarse) Selection | Keyway ① | Keyway ② | Keyway ③ | ||||||||||||
Type | Dg6 | KA, A | KB, B | KC, C | |||||||||||||
Tolerance | 1mm Increment | ||||||||||||||||
NSFGKRT SFGKRT PSFGKRT SSFGKRT (D13, 16, 18 and 22 are not available for SSFGKRT.) | 6 | -0.004 -0.012 | 15.0~400.0 | (2.6) (3) | (4) | KA+A≤L KA≥0 b≤A≤100 | KB+B≤L KB≥KA+A b≤B≤100 | KC+C≤L KC≥KB+B b≤C≤100 | |||||||||
8 | -0.005 -0.014 | 15.0~500.0 | (2.6) (3) | (4) | (5) | (6) | |||||||||||
10 | 15.0~600.0 | 3 | 4 | (5) | (6) | ||||||||||||
12 | -0.006 -0.017 | 15.0~700.0 | 4 | 5 | (6) | (8) | |||||||||||
13 | 15.0~700.0 | 4 | 5 | 6 | (8) | ||||||||||||
15 | 15.0~800.0 | 4 | 5 | 6 | (8) | ||||||||||||
16 | 15.0~900.0 | 4 | 5 | 6 | 8 | (10) | |||||||||||
17 | 30.0~900.0 | 4 | 5 | 6 | 8 | (10) | (12) | ||||||||||
18 | 30.0~900.0 | 4 | 5 | 6 | 8 | (10) | (12) | ||||||||||
20 | -0.007 -0.020 | 30.0~1000.0 | 4 | 5 | 6 | 8 | 10 | (12) | (16) | ||||||||
22 | 40.0~1000.0 | 4 | 5 | 6 | 8 | 10 | 12 | (16) | |||||||||
25 | 50.0~1000.0 | 4 | 5 | 6 | 8 | 10 | 12 | (16) | |||||||||
30 | 60.0~1000.0 | 6 | 8 | 10 | 12 | 16 | |||||||||||
35 | -0.009 -0.025 | 70.0~1000.0 | 6 | 8 | 10 | 12 | 16 | 20 | |||||||||
40 | 80.0~1000.0 | 10 | 12 | 16 | 20 | 24 | |||||||||||
50 | 100.0~1000.0 | 12 | 16 | 20 | 24 | 30 |
CAD Data download and 3D preview are not available because the part number has not yet been determined.
Part Number |
---|
PSFGKRT6-[20-300/0.1]-M[3,4]-KA[0-298/1]-A[2-100/1] |
PSFGKRT8-[20-400/0.1]-M[3,4,5,6]-KA[0-397/1]-A[3-100/1] |
PSFGKRT10-[20-500/0.1]-M[4,5,6]-KA[0-497/1]-A[3-100/1] |
PSFGKRT12-[30-600/0.1]-M[5,6,8]-KA[0-596/1]-A[4-100/1] |
PSFGKRT13-[30-600/0.1]-M[5,6,8]-KA[0-595/1]-A[5-100/1] |
PSFGKRT15-[30-700/0.1]-M[5,6,8,10]-KA[0-695/1]-A[5-100/1] |
PSFGKRT16-[30-800/0.1]-M[5,6,8,10]-KA[0-795/1]-A[5-100/1] |
PSFGKRT17-[30-800/0.1]-M[5,6,8,10,12]-KA[0-795/1]-A[5-100/1] |
PSFGKRT18-[30-800/0.1]-M[5,6,8,10,12]-KA[0-794/1]-A[6-100/1] |
PSFGKRT20-[40-800/0.1]-M[5,6,8,10,12,16]-KA[0-794/1]-A[6-100/1] |
PSFGKRT22-[40-800/0.1]-M[5,6,8,10,12,16]-KA[0-794/1]-A[6-100/1] |
PSFGKRT25-[50-800/0.1]-M[5,6,8,10,12,16]-KA[0-792/1]-A[8-100/1] |
PSFGKRT30-[60-800/0.1]-M[8,10,12,16,20]-KA[0-792/1]-A[8-100/1] |
PSFGKRT35-[70-800/0.1]-M[8,10,12,16,20,24]-KA[0-790/1]-A[10-100/1] |
PSFGKRT40-[80-800/0.1]-M[12,16,20,24,30]-KA[0-788/1]-A[12-100/1] |
PSFGKRT50-[100-800/0.1]-M[16,20,24,30]-KA[0-786/1]-A[14-100/1] |
PSFHKRT6-[15-400/0.1]-M[2.6,3,4]-KA[0-400/0.1]-A[2-150/0.1] |
PSFHKRT6-[15-400/0.1]-MD[2.6,3,4]-KA[0-400/0.1]-A[2-150/0.1] |
PSFHKRT8-[15-500/0.1]-M[2.6,3,4,5,6]-KA[0-500/0.1]-A[3-150/0.1] |
PSFHKRT8-[15-500/0.1]-MD[2.6,3,4,5,6]-KA[0-500/0.1]-A[3-150/0.1] |
PSFHKRT10-[15-600/0.1]-M[3,4,5,6]-KA[0-600/0.1]-A[3-150/0.1] |
PSFHKRT10-[15-600/0.1]-MD[3,4,5,6]-KA[0-600/0.1]-A[3-150/0.1] |
PSFHKRT12-[15-700/0.1]-M[4,5,6,8]-KA[0-700/0.1]-A[4-150/0.1] |
PSFHKRT12-[15-700/0.1]-MD[4,5,6,8]-KA[0-700/0.1]-A[4-150/0.1] |
PSFHKRT15-[15-800/0.1]-M[4,5,6,8,10]-KA[0-800/0.1]-A[5-150/0.1] |
PSFHKRT15-[15-800/0.1]-MD[4,5,6,8,10]-KA[0-800/0.1]-A[5-150/0.1] |
PSFHKRT17-[30-900/0.1]-M[4,5,6,8,10,12]-KA[0-900/0.1]-A[5-150/0.1] |
PSFHKRT17-[30-900/0.1]-MD[4,5,6,8,10,12]-KA[0-900/0.1]-A[5-150/0.1] |
PSFHKRT20-[30-1000/0.1]-M[4,5,6,8,10,12,16]-KA[0-1000/0.1]-A[6-150/0.1] |
PSFHKRT20-[30-1000/0.1]-MD[4,5,6,8,10,12,16]-KA[0-1000/0.1]-A[6-150/0.1] |
PSFHKRT25-[50-1000/0.1]-M[4,5,6,8,10,12,16]-KA[0-1000/0.1]-A[8-150/0.1] |
PSFHKRT25-[50-1000/0.1]-MD[4,5,6,8,10,12,16]-KA[0-1000/0.1]-A[8-150/0.1] |
PSFHKRT30-[60-1000/0.1]-M[6,8,10,12,16,20]-KA[0-1000/0.1]-A[8-150/0.1] |
PSFHKRT30-[60-1000/0.1]-MD[6,8,10,12,16,20]-KA[0-1000/0.1]-A[8-150/0.1] |
PSFHKRT35-[70-1000/0.1]-M[6,8,10,12,16,20,24]-KA[0-1000/0.1]-A[10-150/0.1] |
PSFHKRT35-[70-1000/0.1]-MD[6,8,10,12,16,20,24]-KA[0-1000/0.1]-A[10-150/0.1] |
PSFHKRT40-[80-1000/0.1]-M[10,12,16,20,24,30]-KA[0-1000/0.1]-A[12-150/0.1] |
PSFHKRT40-[80-1000/0.1]-MD[10,12,16,20,24,30]-KA[0-1000/0.1]-A[12-150/0.1] |
PSFHKRT50-[100-1000/0.1]-M[12,16,20,24,30]-KA[0-1000/0.1]-A[14-150/0.1] |
PSFHKRT50-[100-1000/0.1]-MD[12,16,20,24,30]-KA[0-1000/0.1]-A[14-150/0.1] |
PSFMKRT6-[20-300/0.1]-M[3,4]-KA[0-298/1]-A[2-100/1] |
PSFMKRT8-[20-400/0.1]-M[3,4,5,6]-KA[0-397/1]-A[3-100/1] |
PSFMKRT10-[20-500/0.1]-M[4,5,6]-KA[0-497/1]-A[3-100/1] |
PSFMKRT12-[30-600/0.1]-M[5,6,8]-KA[0-596/1]-A[4-100/1] |
PSFMKRT15-[30-700/0.1]-M[5,6,8,10]-KA[0-695/1]-A[5-100/1] |
PSFMKRT20-[40-800/0.1]-M[5,6,8,10,12,16]-KA[0-794/1]-A[6-100/1] |
PSFMKRT25-[50-800/0.1]-M[5,6,8,10,12,16]-KA[0-792/1]-A[8-100/1] |
PSFMKRT30-[60-800/0.1]-M[8,10,12,16,20]-KA[0-792/1]-A[8-100/1] |
PSFMKRT35-[70-800/0.1]-M[8,10,12,16,20,24]-KA[0-790/1]-A[10-100/1] |
SFGKRT6-[20-300/0.1]-M[3,4]-KA[0-298/1]-A[2-100/1] |
SFGKRT8-[20-400/0.1]-M[3,4,5,6]-KA[0-397/1]-A[3-100/1] |
SFGKRT10-[20-500/0.1]-M[4,5,6]-KA[0-497/1]-A[3-100/1] |
SFGKRT12-[30-600/0.1]-M[5,6,8]-KA[0-596/1]-A[4-100/1] |
SFGKRT13-[30-600/0.1]-M[5,6,8]-KA[0-595/1]-A[5-100/1] |
SFGKRT15-[30-700/0.1]-M[5,6,8,10]-KA[0-695/1]-A[5-100/1] |
SFGKRT16-[30-800/0.1]-M[5,6,8,10]-KA[0-795/1]-A[5-100/1] |
SFGKRT17-[30-800/0.1]-M[5,6,8,10,12]-KA[0-795/1]-A[5-100/1] |
SFGKRT18-[30-800/0.1]-M[5,6,8,10,12]-KA[0-794/1]-A[6-100/1] |
SFGKRT20-[40-800/0.1]-M[5,6,8,10,12,16]-KA[0-794/1]-A[6-100/1] |
SFGKRT22-[40-800/0.1]-M[5,6,8,10,12,16]-KA[0-794/1]-A[6-100/1] |
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Shaft Diameter | b | t | r | ||
---|---|---|---|---|---|
Reference Dimension | Tolerance (N9) | Reference Dimension | Tolerance | ||
6-7 | 2 | -0.004 -0.029 | 1.2 | 0.1 -0 | 0.08- 0.16 |
8-10 | 3 | 1.8 | |||
11-12 | 4 | 0 -0.03 | 2.5 | ||
13-17 | 5 | 3.0 | 0.16- 0.25 | ||
18-22 | 6 | 3.5 | |||
23-30 | 8 | 0 -0.036 | 4.0 | +0.2 0 | |
31-38 | 10 | 5.0 | 0.25- 0.4 | ||
39-44 | 12 | 0 -0.043 | 5.0 | ||
45-50 | 14 | 5.0 |
[ ! ]The example below shows the keyway shape for the specs KC, WKC, K=0, KC+A≥L and WKC+C+K+E>L.
Shaft Diameter | d Tolerance | Slot Width (m) Tolerance | Applicable Retaining Ring | ||
---|---|---|---|---|---|
2 | 1.2 | +0.06 0 | 0.4 | +0.05 0 | JIS E Type 1.2 |
2.5 | 1.5 | 0.5 | JIS E Type 1.5 | ||
3 | 2 | JIS E Type 2 | |||
4 | 3 | 0.7 | +0.1 0 | JIS E Type 3 | |
5 | 4 | +0.075 0 | JIS E Type 4 | ||
6 | 5 | JIS E Type 5 | |||
7 | 6 | 0.9 | JIS E Type 6 | ||
8 | 7 | +0.09 0 | JIS E Type 7 | ||
9 | 8 | JIS E Type 8 | |||
10 | 9.6 | 0/-0.09 | 1.15 | +0.14 0 | JIS C Type 10 |
11 | 10.5 | 0 -0.11 | JIS C Type 11 | ||
12 | 11.5 | JIS C Type 12 | |||
13 | 12.4 | JIS C Type 13 | |||
14 | 13.4 | JIS C Type 14 | |||
15 | 14.3 | JIS C Type 15 | |||
16 | 15.2 | JIS C Type 16 | |||
17 | 16.2 | JIS C Type 17 | |||
18 | 17 | 1.35 | JIS C Type 18 | ||
19 | 18 | JIS C Type 19 |
[ ! ]An applicable retaining ring is attached.
Shaft Diameter | d Tolerance | Slot Width (m) Tolerance | Applicable Retaining Ring | ||
---|---|---|---|---|---|
20 | 19 | 0 -0.21 | 1.35 | +0.14 0 | JIS C Type 20 |
21 | 20 | JIS C Type 21 | |||
22 | 21 | JIS C Type 22 | |||
23 | 22 | JIS C Type 23 | |||
24 | 22.9 | JIS C Type 24 | |||
25 | 23.9 | JIS C Type 25 | |||
26 | 24.9 | JIS C Type 26 | |||
28 | 26.6 | 1.65 | JIS C Type 28 | ||
29 | 27.6 | JIS C Type 29 | |||
30 | 28.6 | JIS C Type 30 | |||
32 | 30.3 | 0 -0.25 | JIS C Type 32 | ||
35 | 33 | JIS C Type 35 | |||
40 | 38 | 1.9 | JIS C Type 40 | ||
45 | 42.5 | JIS C Type 45 | |||
50 | 47 | 2.2 | JIS C Type 50 |
Click here for the information
Comparison of specifications between linear shafts and shafts for rotary shafts
Specifications | Rotary Shafts | Linear Shafts | ||
---|---|---|---|---|
Material | 1045 Carbon Steel or Equivalent 304 Stainless Steel | 4137 Alloy Steel or Equivalent | 52100 Bearing Steel Equivalent SUS440C(13Cr) Stainless Steel Equivalent | 1045 Carbon Steel Equivalent or 304 Stainless Steel |
Quenching/Hardness | - | Hardness 30-35HRC | High-frequency quenching | - |
Outer Diameter Tolerance | h9/h7 | g6 | g6/h5 | f8 |
Surface Treatment | No plating Black Oxide Electroless Nickel Plating | Black Oxide Electroless Nickel Plating | No Plating Hard Chrome Plating Low Temp. Black Chrome Plating Electroless Nickel Plating (Only Surface Treatment Fully Plated Type) | Hard Chrome Plating |
Alterations | Rotary Shafts | Linear Shafts |
---|---|---|
L Dimension Tolerance | L<500: L±0.05 L≧500: L±0.1 L≧800: NOT applicable | L<200: L±0.03 200≦L<500: L±0.05 L≧500: L±0.1 |
Flat Key Grooves | Up to 1 location specified | Up to 2 locations specified |
Set Screw Flat | Up to 3 locations specified | Up to 2 locations specified |
2 Set Screw Flat | Up to 1 location specified Angle Specification: 15 Deg. Inc | Up to 2 locations specified Angle Specification: Fixed |
V-groove | - | Up to 2 locations specified |
Keyway | Up to 4 locations specified Specified on step: Applicable | Up to 2 locations specified Specified on step: NOT applicable |
Change to Fine Threads | 1 type | 2 type |
Change to Fine Threads Tap | - | 1 type |
Undercut | M3~M30 | M6~M30 |
Tapped Depth | Applicable | Applicable |
Retainning Ring Groove | Up to 2 locations on D and 1 locationon each step *Can be chosen together | Up to 2 locations specified (Only Retaining Ring type applicable) |
Slit Cam Groove | Up to 1 location specified | - |
Concentricity | Applicable | - |
Left Hand Thread | Applicable | - |
Slit | Up to 1 location specified | - |
C Chamfering Width | Applicable | - |
*Click here for information of Rotary Shaft Alteration Guide or Shaft Alteration Guide
Category | Ball Bearings | Bearings with Housings | Flexible Couplings | Timing Pulleys | Timing Belts |
---|---|---|---|---|---|
Image | ![]() | ![]() | ![]() | ![]() | ![]() |
Basic Shape | Straight | End Shape (Left) | Tapped | End Shape (Right) | No Machining |
---|---|---|---|---|---|
Heat Treatment | Not Hardened | Keyway | With Keyway |
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