Product Drawing
Documentation
PDF Catalog
Selection Guide / Technical Info.
Detailed Drawing
KHK SIR2.5-120, Module 2.5, 120 Tooth, Internal Ring Gears
Steel Ring Gears (SIR)
Status: AX
Ring gear large in size / number of tooth. It can be cut to make segment gears and corner racks.
Please note that all J-Series, F-Series, & H-Series products are made-to-order, noncancellable, and non-returnable.
Price: $656.86 (See below for quantity breaks.)
Pricing Structure
| Qty Range | 1 – 9 | 10 – 24 | 25 – 49 | 50 – 99 | 100 – 249 | 250 – 499 | 500 – 999 | 1000+ |
| Price/Unit | $656.86 | $634.58 | $612.30 | $590.01 | $567.73 | $545.44 | $523.16 | $500.88 |
Available On Hand Inventory*: 7
3 Day Delivery (Factory Direct) Inventory*: 9
Backorder Availability*: Additional pieces available in 12 weeks ARO.
*Approximate inventory level subject to prior sale and availability. If you require more product than is available, please contact us at (516) 248-3850.
KHK SIR2.5-120, Module 2.5, 120 Tooth, Internal Ring Gears Specifications
Metric
Inch
Gear Type
Internal Gears
Construction
Internal Ring Gears
Module
2.5
No. of teeth
120
Shape
T1
Internal Diameter (A)
295.0
(mm)
Pitch Diameter (C)
300.00
(mm)
Outer Diameter (D)
355.00
(mm)
Face Width (E)
25.0
(mm)
Bending Strength (N-m)
807.0000
Surface Durability (N-m)
138.0000
Bending Strength (kgf-m)
82.3000
Surface Durability (kgf-m)
14
Backlash
0.19-0.41
(mm)
Weight
5.55000
(kg)
Precision Grade
JIS grade N9 (JIS B1702-1:1998)
Gear Teeth Type
Standard full depth
Pressure Angle
20°
Material
S45C (AISI 1045) Carbon Steel
Tooth Hardness
(less than 194HB)
Surface Treatment
Black oxide coating