Product Drawing
Documentation
PDF Catalog
Selection Guide / Technical Info.
Detailed Drawing
KHK SIR2-120, Module 2, 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: $479.67 (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 | $479.67 | $463.00 | $446.33 | $429.65 | $412.98 | $396.30 | $379.63 | $362.96 |
Available On Hand Inventory*: 4
3 Day Delivery (Factory Direct) Inventory*: 18
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 SIR2-120, Module 2, 120 Tooth, Internal Ring Gears Specifications
Metric
Inch
Gear Type
Internal Gears
Construction
Internal Ring Gears
Module
2
No. of teeth
120
Shape
T1
Internal Diameter (A)
236.0
(mm)
Pitch Diameter (C)
240.00
(mm)
Outer Diameter (D)
286.00
(mm)
Face Width (E)
20.0
(mm)
Bending Strength (N-m)
413.0000
Surface Durability (N-m)
68.8000
Bending Strength (kgf-m)
42.1000
Surface Durability (kgf-m)
7.02
Backlash
0.17-0.37
(mm)
Weight
2.98000
(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